{"id":7951,"date":"2025-12-18T09:56:48","date_gmt":"2025-12-18T01:56:48","guid":{"rendered":"https:\/\/www.uneedpm.com\/?p=7951"},"modified":"2025-12-15T10:12:57","modified_gmt":"2025-12-15T02:12:57","slug":"how-to-heat-treat-steel-2025-complete-guide","status":"publish","type":"post","link":"https:\/\/www.uneedpm.com\/cs\/how-to-heat-treat-steel-2025-complete-guide\/","title":{"rendered":"Jak tepeln\u011b zpracovat ocel: 2025 kompletn\u00ed pr\u016fvodce"},"content":{"rendered":"<p>Na z\u00e1klad\u011b \u00fadaj\u016f z <a href=\"https:\/\/worldsteel.org\/steel-topics\/statistics\/world-steel-in-figures\/\">Sv\u011btov\u00e1 ocel\u00e1\u0159sk\u00e1 asociace<\/a>, celosv\u011btov\u00e1 produkce oceli p\u0159esahuje 1,8 miliardy tun ro\u010dn\u011b, co\u017e ukazuje, jak z\u00e1sadn\u00ed je spr\u00e1vn\u00e9 tepeln\u00e9 zpracov\u00e1n\u00ed pro v\u00fdkonnost a spolehlivost. Tepeln\u00e9 zpracov\u00e1n\u00ed oceli nen\u00ed magie. Je to kontrola. Kdy\u017e zah\u0159ejete na spr\u00e1vn\u00fd rozsah austenitizace, dostate\u010dn\u011b dlouho nam\u00e1\u010d\u00edte, kal\u00edte ve spr\u00e1vn\u00e9m m\u00e9diu a v\u010das popou\u0161t\u00edte, mikrostruktura oceli se posune ve v\u00e1\u0161 prosp\u011bch. Tvrdost, pevnost a hou\u017eevnatost jsou v\u00fdsledkem t\u011bchto rozhodnut\u00ed. Pokud se netref\u00edte ani o 25 \u00b0C nebo o n\u011bkolik minut, mohou d\u00edly prasknout, zkroutit se nebo b\u00fdt m\u011bkk\u00e9.<\/p>\n\n\n\n<p>Tento pr\u016fvodce v\u00e1m poskytne opakovateln\u00fd pl\u00e1n. Najdete zde kontroln\u00ed seznam pro rychl\u00fd start, pokyny krok za krokem, praktick\u00e9 \"recepty\", bezpe\u010dnostn\u00ed z\u00e1sady a jasn\u00e9 vysv\u011btlen\u00ed metalurgick\u00fdch \"pro\u010d\". Budeme se zab\u00fdvat p\u0159esn\u00fdmi teplotn\u00edmi rozsahy, dobami nam\u00e1\u010den\u00ed, volbou kalen\u00ed a teplotami popou\u0161t\u011bn\u00ed pro b\u011b\u017en\u00e9 jakosti, jako jsou D2, 1095 a 52100. Dozv\u00edte se tak\u00e9, jak ov\u011b\u0159ovat v\u00fdsledky pomoc\u00ed jednoduch\u00fdch test\u016f. Cestou zjist\u00edte, co proces tepeln\u00e9ho zpracov\u00e1n\u00ed d\u011bl\u00e1 s mikrostrukturou oceli, jak obsah slitiny m\u011bn\u00ed reakci a jak tepeln\u011b zpracov\u00e1vat ocel doma s jistotou a bezpe\u010dn\u011b.<\/p>\n\n\n\n<p>Pokud jste se n\u011bkdy ptali: \"Mohu tepeln\u011b zpracov\u00e1vat ocel doma?\" nebo \"P\u0159i jak\u00e9 teplot\u011b se tepeln\u011b zpracov\u00e1v\u00e1 ocel?\", n\u00ed\u017ee najdete jasn\u00e9 odpov\u011bdi a jejich zd\u016fvodn\u011bn\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rychl\u00fd start: Teploty, kroky a bezpe\u010dnost<\/h2>\n\n\n\n<p>Ne\u017e se vrhneme na postupn\u00e9 kroky, p\u0159ikl\u00e1d\u00e1me kr\u00e1tk\u00fd m\u016fstek. Pokud s tepeln\u00fdm zpracov\u00e1n\u00edm za\u010d\u00edn\u00e1te nebo si ho jen pot\u0159ebujete rychle osv\u011b\u017eit, je my\u0161lenka jednoduch\u00e1: p\u0159iv\u00e9st ocel na spr\u00e1vnou teplotu, udr\u017eet ji dostate\u010dn\u011b dlouho, ochladit ji p\u0159i spr\u00e1vn\u00e9 rychlosti a pak ji popou\u0161t\u011bt, aby se zv\u00fd\u0161ila jej\u00ed hou\u017eevnatost. Detaily - teploty, doba nam\u00e1\u010den\u00ed a volba kalen\u00ed - jsou t\u00edm, co rozhoduje o v\u00fdsledc\u00edch. V n\u00e1sleduj\u00edc\u00ed \u010d\u00e1sti najdete cel\u00fd postup v rychl\u00e9m a praktick\u00e9m p\u0159ehledu, kter\u00fd m\u016f\u017eete sledovat na pracovn\u00edm stole nebo v mal\u00e9 d\u00edln\u011b.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159ehledn\u00e1 posloupnost jader: zah\u0159\u00edv\u00e1n\u00ed \u2192 nam\u00e1\u010den\u00ed \u2192 kalen\u00ed \u2192 popou\u0161t\u011bn\u00ed<\/h3>\n\n\n\n<p>Zde je j\u00e1dro procesu tepeln\u00e9ho zpracov\u00e1n\u00ed kalen\u00e9 oceli. Tento postup pou\u017eijte, pokud chcete zv\u00fd\u0161it pevnost a tvrdost a n\u00e1sledn\u011b vyv\u00e1\u017eit hou\u017eevnatost popou\u0161t\u011bn\u00edm.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Ocel zah\u0159ejte na rozsah austenitizace (kritick\u00e9 teplotn\u00ed p\u00e1smo, p\u0159i kter\u00e9m se struktura m\u011bn\u00ed na austenit).<\/li>\n\n\n\n<li>Nam\u00e1\u010dejte p\u0159i dan\u00e9 teplot\u011b dostate\u010dn\u011b dlouho, aby se teplo v d\u00edlu vyrovnalo.<\/li>\n\n\n\n<li>Chlazen\u00ed ve zvolen\u00e9m m\u00e9diu (olej, voda\/rosol, vzduch nebo plyn) s \u0159\u00e1dn\u00fdm m\u00edch\u00e1n\u00edm.<\/li>\n\n\n\n<li>Temperujte p\u0159i ni\u017e\u0161\u00ed teplot\u011b, abyste sn\u00ed\u017eili k\u0159ehkost a nastavili kone\u010dn\u00e9 mechanick\u00e9 vlastnosti.<\/li>\n<\/ol>\n\n\n\n<p>To je cel\u00fd cyklus: austenitizace \u2192 kalen\u00ed \u2192 popou\u0161t\u011bn\u00ed. Od t\u011bchto krok\u016f se odv\u00edj\u00ed mnoho typ\u016f tepeln\u00e9ho zpracov\u00e1n\u00ed (\u017e\u00edh\u00e1n\u00ed, normalizace, uvol\u0148ov\u00e1n\u00ed nap\u011bt\u00ed), ale v\u011bt\u0161ina z nich se \u0159\u00edd\u00ed stejnou my\u0161lenkou: \u0159\u00edzen\u00fdm zah\u0159\u00edv\u00e1n\u00edm a ochlazov\u00e1n\u00edm se dos\u00e1hne po\u017eadovan\u00fdch vlastnost\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kritick\u00e1 teplotn\u00ed p\u00e1sma a doby nam\u00e1\u010den\u00ed (1 450-1 800 \u00b0F; z\u00e1le\u017e\u00ed na \u00b125 \u00b0F)<\/h3>\n\n\n\n<p>V\u011bt\u0161ina hladk\u00fdch uhl\u00edkov\u00fdch a n\u00e1strojov\u00fdch ocel\u00ed austenitizuje v rozmez\u00ed p\u0159ibli\u017en\u011b 1 450 a\u017e 1 800 \u00b0F (790-980 \u00b0C). Toto rozmez\u00ed je \u0161irok\u00e9, proto\u017ee spr\u00e1vn\u00e1 c\u00edlov\u00e1 hodnota z\u00e1vis\u00ed na typu oceli (obsah uhl\u00edku a p\u0159\u00edm\u011bsi slitin m\u011bn\u00ed, jak rychle se ocel transformuje a kolik martenzitu m\u016f\u017eete vytvo\u0159it p\u0159i dan\u00e9 rychlosti chlazen\u00ed).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U jednoduch\u00fdch ocel\u00ed s vysok\u00fdm obsahem uhl\u00edku (nap\u0159. 1095) se austenitizace \u010dasto bl\u00ed\u017e\u00ed hodnot\u011b 1475-1500 \u00b0F.<\/li>\n\n\n\n<li>U legovan\u00fdch ocel\u00ed (nap\u0159. 52100) se b\u011b\u017en\u011b pohybuje kolem 1 500-1 550 \u00b0F.<\/li>\n\n\n\n<li>U vysoce legovan\u00fdch n\u00e1strojov\u00fdch ocel\u00ed (jako je D2) je tato teplota vy\u0161\u0161\u00ed - \u010dasto 1 800 a\u017e 1 850 \u00b0F.<\/li>\n<\/ul>\n\n\n\n<p>Doba nam\u00e1\u010den\u00ed z\u00e1vis\u00ed na velikosti a t\u0159\u00edd\u011b d\u00edlu. B\u011b\u017en\u00e1 pravidla:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zah\u0159\u00edvejte, dokud nen\u00ed teplota v cel\u00e9m d\u00edlu (u siln\u00fdch kus\u016f pou\u017eijte termo\u010dl\u00e1nek).<\/li>\n\n\n\n<li>Pot\u00e9 podr\u017ete po kr\u00e1tkou, kontrolovanou dobu - \u010dasto 10-30 minut pro mal\u00e9 \u00faseky u jednoduch\u00fdch a legovan\u00fdch ocel\u00ed a a\u017e 30 minut (nebo podle specifikace) u mnoha n\u00e1strojov\u00fdch ocel\u00ed po vyrovn\u00e1n\u00ed.<\/li>\n\n\n\n<li>Pro vysokoteplotn\u00ed procesy, jako je \u017e\u00edh\u00e1n\u00ed, jsou typick\u00e9 del\u0161\u00ed doby zdr\u017een\u00ed (a\u017e 1 hodina na palec tlou\u0161\u0165ky).<\/li>\n<\/ul>\n\n\n\n<p>Drobn\u00e9 zm\u011bny maj\u00ed v\u00fdznam. P\u0159\u00edli\u0161 vysok\u00e1 teplota 25-50 \u00b0C m\u016f\u017ee v\u00e9st k r\u016fstu zrna a sn\u00ed\u017een\u00ed hou\u017eevnatosti. Pokud se sn\u00ed\u017e\u00edte na n\u00edzkou teplotu, m\u016f\u017ee v\u00e1m po kalen\u00ed chyb\u011bt tvrdost.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00fdb\u011br kalic\u00edho m\u00e9dia: voda vs. olej vs. vzduch vs. inertn\u00ed plyn (riziko vs. tvrdost)<\/h3>\n\n\n\n<p>V\u00fdb\u011br kalic\u00edho m\u00e9dia je ot\u00e1zkou rovnov\u00e1hy mezi rychlost\u00ed chlazen\u00ed, rizikem a kalitelnost\u00ed oceli. Rychlej\u0161\u00ed m\u00e9dia zvy\u0161uj\u00ed potenci\u00e1l tvrdosti, ale zvy\u0161uj\u00ed riziko vzniku trhlin a deformace.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Solanka (slan\u00e1 voda): Extr\u00e9mn\u011b rychl\u00fd, nejvy\u0161\u0161\u00ed riziko<\/h4>\n\n\n\n<p>Solanka je nejsiln\u011bj\u0161\u00edm kalic\u00edm m\u00e9diem, proto\u017ee s\u016fl rozkl\u00e1d\u00e1 parn\u00ed pokr\u00fdvku kolem hork\u00e9 oceli, co\u017e umo\u017e\u0148uje extr\u00e9mn\u011b rychl\u00e9 ochlazen\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdhody: Maxim\u00e1ln\u00ed tvrdost u jednoduch\u00fdch ocel\u00ed, kter\u00e9 vy\u017eaduj\u00ed rychl\u00e9 chlazen\u00ed.<\/li>\n\n\n\n<li>Nev\u00fdhody: Nejvy\u0161\u0161\u00ed riziko vzniku trhlin, deformac\u00ed a vnit\u0159n\u00edho pnut\u00ed.<\/li>\n\n\n\n<li>Nejlep\u0161\u00ed pro: Ur\u010dit\u00e9 n\u00edzkolegovan\u00e9 oceli s jednoduch\u00fdm obsahem uhl\u00edku ur\u010den\u00e9 pro kalen\u00ed vodou.<\/li>\n\n\n\n<li>Vyhn\u011bte se pro: Vysokolegovan\u00e9 n\u00e1strojov\u00e9 oceli a slo\u017eit\u00e9 nebo tenk\u00e9 d\u00edly.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Voda: Rychl\u00e1 a \u00fa\u010dinn\u00e1, ale s vysok\u00fdm rizikem zkreslen\u00ed<\/h4>\n\n\n\n<p>Voda chlad\u00ed o n\u011bco pomaleji ne\u017e solanka, ale st\u00e1le je velmi agresivn\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdhody: Vhodn\u00e1 rychlost pro oceli s jednoduch\u00fdm uhl\u00edkem, kter\u00e9 pot\u0159ebuj\u00ed rychl\u00e9 chlazen\u00ed.<\/li>\n\n\n\n<li>Nev\u00fdhody: Vysok\u00e9 riziko zkreslen\u00ed a prasklin.<\/li>\n\n\n\n<li>Nejlep\u0161\u00ed pro: Jednoduch\u00e9 geometrie z ocel\u00ed tvrdnouc\u00edch ve vod\u011b.<\/li>\n\n\n\n<li>Vyhn\u011bte se pro: N\u00e1strojov\u00e9 oceli, vysoce legovan\u00e9 oceli nebo slo\u017eit\u00e9 d\u00edly.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Polymern\u00ed zh\u00e1\u0161edla: Vyladiteln\u00e9 a m\u00e9n\u011b rizikov\u00e9 ne\u017e voda<\/h4>\n\n\n\n<p>Polymern\u00ed chladic\u00ed prost\u0159edky (roztoky na b\u00e1zi PAG) lze \u0159edit, aby se dos\u00e1hlo specifick\u00e9ho chladic\u00edho profilu.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdhody: Nastaviteln\u00e1 rychlost ochlazov\u00e1n\u00ed; men\u0161\u00ed n\u00e1razy ne\u017e p\u0159\u00edm\u00e1 voda.<\/li>\n\n\n\n<li>Nev\u00fdhody: Vy\u017eaduje kontrolu koncentrace a \u0159\u00edzen\u00ed m\u00edch\u00e1n\u00ed.<\/li>\n\n\n\n<li>Nejlep\u0161\u00ed pro: Sou\u010d\u00e1sti, kter\u00e9 pot\u0159ebuj\u00ed rychlej\u0161\u00ed chlazen\u00ed ne\u017e olej, ale ni\u017e\u0161\u00ed riziko ne\u017e voda.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Olej: Vyv\u00e1\u017een\u00e9 chlazen\u00ed pro v\u011bt\u0161inu ocel\u00ed<\/h4>\n\n\n\n<p>Olej je nejb\u011b\u017en\u011bj\u0161\u00edm chladic\u00edm m\u00e9diem, proto\u017ee nab\u00edz\u00ed m\u00edrn\u00e9 a regulovateln\u00e9 chlazen\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdhody: Dobr\u00fd potenci\u00e1l tvrdosti s mnohem ni\u017e\u0161\u00edm rizikem vzniku trhlin.<\/li>\n\n\n\n<li>Nev\u00fdhody: Pomalej\u0161\u00ed ne\u017e voda; nemus\u00ed pln\u011b vytvrdit oceli s velmi n\u00edzkou tvrdost\u00ed.<\/li>\n\n\n\n<li>Nejlep\u0161\u00ed pro: N\u00e1strojov\u00e9 oceli \u0159ady O, obecn\u00e9 n\u00e1stroj\u00e1\u0159sk\u00e9 oceli a \u010depele.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/2-13-1024x768.webp\" alt=\"jak tepeln\u011b zpracov\u00e1vat ocel\" class=\"wp-image-7955\" srcset=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/2-13-1024x768.webp 1024w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/2-13-300x225.webp 300w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/2-13-768x576.webp 768w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/2-13-16x12.webp 16w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/2-13.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Tich\u00fd vzduch: Pomal\u00e9 ochlazov\u00e1n\u00ed ocel\u00ed vytvrzovan\u00fdch vzduchem<\/h4>\n\n\n\n<p>Chlazen\u00ed vzduchem umo\u017e\u0148uje ocel\u00edm s vysokou tvrdost\u00ed p\u0159ej\u00edt na martenzit bez rizika pou\u017eit\u00ed kapaln\u00fdch kalic\u00edch prost\u0159edk\u016f.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdhody: Velmi n\u00edzk\u00e9 zkreslen\u00ed; \u010dist\u00fd; jednoduch\u00fd.<\/li>\n\n\n\n<li>Nev\u00fdhody: P\u0159\u00edli\u0161 pomal\u00e9 pro v\u011bt\u0161inu hladk\u00fdch nebo n\u00edzkolegovan\u00fdch ocel\u00ed.<\/li>\n\n\n\n<li>Nejlep\u0161\u00ed pro: A, D a dal\u0161\u00ed n\u00e1strojov\u00e9 oceli tvrzen\u00e9 vzduchem; tenk\u00e9 nebo vysoce p\u0159esn\u00e9 d\u00edly.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Nucen\u00fd vzduch nebo inertn\u00ed plyn: \u0158\u00edzen\u00e9, profesion\u00e1ln\u00ed kalen\u00ed<\/h4>\n\n\n\n<p>Pr\u016fmyslov\u00e9 pece a vakuov\u00e9 syst\u00e9my \u010dasto pou\u017e\u00edvaj\u00ed dus\u00edkov\u00e9 nebo argonov\u00e9 kalen\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdhody: \u010cist\u00e9, opakovateln\u00e9, kontrolovateln\u00e9 chlazen\u00ed; n\u00edzk\u00e9 zkreslen\u00ed.<\/li>\n\n\n\n<li>Nev\u00fdhody: Vy\u017eaduje specializovan\u00e9 vybaven\u00ed.<\/li>\n\n\n\n<li>Nejlep\u0161\u00ed pro: Vysokolegovan\u00e9 oceli, p\u0159esn\u00e9 sou\u010d\u00e1sti, vakuov\u011b zpracovan\u00e9 d\u00edly.<\/li>\n<\/ul>\n\n\n\n<p>Pokud si nejste jisti, za\u010dn\u011bte konzervativn\u011b. Mnoho ocel\u00ed, kter\u00e9 \"mohou\" tvrdnout ve vod\u011b, se v oleji kal\u00ed s men\u0161\u00edm rizikem.<\/p>\n\n\n\n<p>Souhrnn\u00e1 tabulka: Chladic\u00ed m\u00e9dia a relativn\u00ed z\u00e1va\u017enost<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Hasic\u00ed m\u00e9dium<\/th><th class=\"has-text-align-center\" data-align=\"center\">Z\u00e1va\u017enost chlazen\u00ed<\/th><th class=\"has-text-align-center\" data-align=\"center\">Riziko vzniku trhlin\/zkreslen\u00ed<\/th><th class=\"has-text-align-center\" data-align=\"center\">Typick\u00e9 p\u0159\u00edpady pou\u017eit\u00ed<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Solanka (slan\u00e1 voda)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Velmi rychle<\/td><td class=\"has-text-align-center\" data-align=\"center\">Velmi vysok\u00e1<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u011bkter\u00e9 jednoduch\u00e9 oceli vy\u017eaduj\u00edc\u00ed siln\u00e9 kalen\u00ed<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Voda<\/td><td class=\"has-text-align-center\" data-align=\"center\">Rychle<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vysok\u00e1<\/td><td class=\"has-text-align-center\" data-align=\"center\">Oby\u010dejn\u00e9 uhl\u00edkov\u00e9 oceli ur\u010den\u00e9 pro kalen\u00ed vodou<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Polymer<\/td><td class=\"has-text-align-center\" data-align=\"center\">St\u0159edn\u011b rychl\u00fd (laditeln\u00fd)<\/td><td class=\"has-text-align-center\" data-align=\"center\">St\u0159edn\u011b vysok\u00fd<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u0158\u00edzen\u00e9 kalen\u00ed se sn\u00ed\u017een\u00fdm r\u00e1zem<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Olej (hasic\u00ed olej)<\/td><td class=\"has-text-align-center\" data-align=\"center\">M\u00edrn\u00e1<\/td><td class=\"has-text-align-center\" data-align=\"center\">St\u0159edn\u011b n\u00edzk\u00e9<\/td><td class=\"has-text-align-center\" data-align=\"center\">V\u011bt\u0161ina vysoce uhl\u00edkat\u00fdch a legovan\u00fdch ocel\u00ed; obecn\u00e9 n\u00e1stroje<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Tich\u00fd vzduch<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pomal\u00fd<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00edzk\u00e1<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e1strojov\u00e9 oceli vytvrzovan\u00e9 vzduchem; tenk\u00e9 nebo p\u0159esn\u00e9 d\u00edly<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Nucen\u00fd vzduch \/ inertn\u00ed plyn<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pomal\u00fd-st\u0159edn\u00ed (kontrolovan\u00fd)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Velmi n\u00edzk\u00e1<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pr\u00e1ce ve vakuov\u00e9 peci; vysoce legovan\u00e9 oceli; kritick\u00e9 d\u00edly<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Bezpe\u010dnostn\u00ed z\u00e1klady: OOP, v\u011btr\u00e1n\u00ed, kontrola po\u017e\u00e1ru, m\u00edsta vzplanut\u00ed oleje, kle\u0161t\u011b<\/h3>\n\n\n\n<p>Tepeln\u00e9 zpracov\u00e1n\u00ed zahrnuje vysokou teplotu, otev\u0159en\u00fd ohe\u0148 a ho\u0159lav\u00e9 kapaliny. Chovejte se k n\u011bmu jako k \u0159\u00edzen\u00e9mu nebezpe\u010d\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159i ha\u0161en\u00ed pou\u017e\u00edvejte ochranu o\u010d\u00ed, tepeln\u011b odoln\u00e9 rukavice, od\u011bv z p\u0159\u00edrodn\u00edch vl\u00e1ken a obli\u010dejov\u00fd \u0161t\u00edt.<\/li>\n\n\n\n<li>Pou\u017e\u00edvejte dobr\u00e9 v\u011btr\u00e1n\u00ed. Topn\u00fd olej nebo vodn\u00ed k\u00e1men mohou vytv\u00e1\u0159et v\u00fdpary.<\/li>\n\n\n\n<li>Nikdy nehaste v bl\u00edzkosti nepo\u0159\u00e1dku. M\u011bjte pobl\u00ed\u017e hasic\u00ed p\u0159\u00edstroj t\u0159\u00eddy B a v\u011bzte, jak ho pou\u017e\u00edt.<\/li>\n\n\n\n<li>\u0158\u00edzen\u00ed teploty oleje. Mnoho kalic\u00edch olej\u016f se kv\u016fli rychlosti pou\u017e\u00edv\u00e1 tepl\u00fdch (kolem 120-150 \u00b0C), ale mus\u00ed se udr\u017eovat hluboko pod bodem vzplanut\u00ed. K utlumen\u00ed vzplanut\u00ed pou\u017eijte v\u00edko nebo posuvn\u00fd kryt n\u00e1dr\u017ee.<\/li>\n\n\n\n<li>Pou\u017e\u00edvejte kle\u0161t\u011b, kter\u00e9 se dob\u0159e dr\u017e\u00ed. P\u00e1d roz\u017ehaven\u00e9ho d\u00edlu do oleje je \u010dastou nehodou.<\/li>\n\n\n\n<li>Mezi jednotliv\u00fdmi cykly nechte n\u00e1\u0159ad\u00ed a kle\u0161t\u011b vychladnout, aby nedo\u0161lo k p\u0159edeh\u0159\u00e1t\u00ed kalen\u00ed nebo pop\u00e1len\u00ed.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Co je tepeln\u00e9 zpracov\u00e1n\u00ed?<\/h2>\n\n\n\n<p>Tepeln\u00e9 zpracov\u00e1n\u00ed je \u0159\u00edzen\u00fd proces zah\u0159\u00edv\u00e1n\u00ed a ochlazov\u00e1n\u00ed kov\u016f - obvykle oceli - za \u00fa\u010delem zm\u011bny jejich vnit\u0159n\u00ed struktury a zlep\u0161en\u00ed vlastnost\u00ed. Tento \u0159\u00edzen\u00fd proces je jedn\u00edm z nejefektivn\u011bj\u0161\u00edch zp\u016fsob\u016f zpevn\u011bn\u00ed kovu teplem pro dosa\u017een\u00ed vy\u0161\u0161\u00ed odolnosti a tvrdosti. Pe\u010dlivou volbou teploty, doby nam\u00e1\u010den\u00ed a rychlosti ochlazov\u00e1n\u00ed m\u016f\u017eete ocel u\u010dinit tvrd\u0161\u00ed, hou\u017eevnat\u011bj\u0161\u00ed, odoln\u011bj\u0161\u00ed proti opot\u0159eben\u00ed nebo snadn\u011bji obrobitelnou. Jin\u00fdmi slovy, tepeln\u00e9 zpracov\u00e1n\u00ed v\u00e1m umo\u017e\u0148uje \"vyladit\" vlastnosti kovu tak, aby odpov\u00eddaly pr\u00e1ci, kterou pot\u0159ebujete vykonat.<\/p>\n\n\n\n<p>V\u0161echny metody tepeln\u00e9ho zpracov\u00e1n\u00ed se \u0159\u00edd\u00ed stejnou z\u00e1kladn\u00ed my\u0161lenkou:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Zah\u0159ejte ocel na ur\u010ditou teplotu, p\u0159i kter\u00e9 se zm\u011bn\u00ed jej\u00ed mikrostruktura.<\/li>\n\n\n\n<li>Podr\u017ete (namo\u010dte) ji tak dlouho, aby do\u0161lo k \u00fapln\u00e9 p\u0159em\u011bn\u011b.<\/li>\n\n\n\n<li>Chla\u010fte jej kontrolovanou rychlost\u00ed - rychle nebo pomalu - v z\u00e1vislosti na po\u017eadovan\u00fdch vlastnostech.<\/li>\n<\/ol>\n\n\n\n<p>Procesy jako \u017e\u00edh\u00e1n\u00ed zm\u011bk\u010duj\u00ed ocel pro obr\u00e1b\u011bn\u00ed, kalen\u00ed a popou\u0161t\u011bn\u00ed vytv\u00e1\u0159ej\u00ed vysokou tvrdost s pou\u017eitelnou hou\u017eevnatost\u00ed a kalen\u00ed vytv\u00e1\u0159\u00ed tvrd\u00fd pl\u00e1\u0161\u0165 nad hou\u017eevnat\u00fdm j\u00e1drem. Bez ohledu na metodu je tepeln\u00e9 zpracov\u00e1n\u00ed p\u0159esn\u00e9 a p\u0159edv\u00eddateln\u00e9: spr\u00e1vn\u00e1 teplota, spr\u00e1vn\u00fd \u010das, spr\u00e1vn\u00e9 chlazen\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak tepeln\u011b zpracovat ocel (krok za krokem)<\/h2>\n\n\n\n<p>V t\u00e9to \u010d\u00e1sti se dozv\u00edte, jak tepeln\u011b zpracovat ocel od za\u010d\u00e1tku do konce, a to v jednotliv\u00fdch kroc\u00edch, kter\u00e9 ovliv\u0148uj\u00ed v\u00fdsledky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Identifikujte svou ocel a ov\u011b\u0159te rozsah austenitizace (tabulky, technick\u00e9 listy).<\/h3>\n\n\n\n<p>P\u0159ed zah\u0159\u00e1t\u00edm oceli mus\u00edte zn\u00e1t typ oceli. \u010c\u00edsla AISI\/SAE (nap\u0159. 1095 nebo 52100) nebo n\u00e1strojov\u00e9 oceli (nap\u0159. O1, A2, D2) maj\u00ed specifick\u00e9 rozsahy. Pokud jakost nezn\u00e1te, pova\u017eujte ji za nezn\u00e1mou; neodhadujte ji. V p\u0159\u00edpad\u011b pochybnost\u00ed nejprve prove\u010fte zku\u0161ebn\u00ed kupony.<\/p>\n\n\n\n<p>Zkontrolujte spolehlivou tabulku nebo datov\u00fd list:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Teplotn\u00ed rozsah austenitizace<\/li>\n\n\n\n<li>Doporu\u010den\u00ed pro p\u0159edeh\u0159ev (zejm\u00e9na pro n\u00e1strojov\u00e9 oceli)<\/li>\n\n\n\n<li>Pokyny pro hasic\u00ed m\u00e9dia<\/li>\n\n\n\n<li>Rozsah popou\u0161t\u011bn\u00ed a p\u0159\u00edpadn\u00e1 \"zak\u00e1zan\u00e1\" p\u00e1sma (z\u00f3ny k\u0159ehnut\u00ed popou\u0161t\u011bn\u00edm).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159\u00edprava d\u00edlu: o\u010distit povrch, chr\u00e1nit p\u0159ed oduhli\u010den\u00edm (f\u00f3lie, atmosf\u00e9ra).<\/h3>\n\n\n\n<p>P\u0159\u00edprava povrchu ovliv\u0148uje kone\u010dnou tvrdost a povrchovou \u00fapravu.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Odmast\u011bte a odstra\u0148te rez. Olej nebo vodn\u00ed k\u00e1men mohou zp\u016fsobit nerovnom\u011brn\u00e9 zah\u0159\u00edv\u00e1n\u00ed a m\u011bkk\u00e1 m\u00edsta.<\/li>\n\n\n\n<li>Pokud chcete m\u00edt \u010dist\u00fd povrch, pou\u017eijte obal na nerezov\u00e9 n\u00e1stroje (f\u00f3lii) nebo \u0159\u00edzenou atmosf\u00e9ru, abyste omezili oduhli\u010den\u00ed a tvorbu okuj\u00ed. Obal dob\u0159e ut\u011bsn\u011bte. P\u0159i kalen\u00ed olejem prop\u00edchn\u011bte obal t\u011bsn\u011b p\u0159ed kalen\u00edm, abyste zabr\u00e1nili vzniku \"bal\u00f3nku\".<\/li>\n\n\n\n<li>Zva\u017ete pou\u017eit\u00ed tenk\u00e9ho n\u00e1t\u011bru proti vodn\u00edmu kameni. Pom\u00e1h\u00e1 to zachovat obrobitelnost a \u0161et\u0159\u00ed pr\u00e1ci po brou\u0161en\u00ed.<\/li>\n\n\n\n<li>Zaoblen\u00ed ostr\u00fdch vnit\u0159n\u00edch roh\u016f. Ostr\u00e9 rohy koncentruj\u00ed vnit\u0159n\u00ed nap\u011bt\u00ed a mohou p\u0159i kalen\u00ed prasknout.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/3-13-1024x768.webp\" alt=\"tepeln\u00e9 \u00fapravy\" class=\"wp-image-7956\" srcset=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/3-13-1024x768.webp 1024w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/3-13-300x225.webp 300w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/3-13-768x576.webp 768w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/3-13-16x12.webp 16w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/3-13.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Oh\u0159ev a nam\u00e1\u010den\u00ed: f\u00e1ze p\u0159edeh\u0159evu, um\u00edst\u011bn\u00ed termo\u010dl\u00e1nk\u016f, PID regulace<\/h3>\n\n\n\n<p>Dobr\u00e9 vyt\u00e1p\u011bn\u00ed je o rovnom\u011brnosti a kontrole.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U mnoha n\u00e1strojov\u00fdch ocel\u00ed pou\u017eijte dvoustup\u0148ov\u00fd p\u0159edeh\u0159ev (nap\u0159\u00edklad ~1 200 \u00b0F a pot\u00e9 ~1 450 \u00b0F), abyste sn\u00ed\u017eili tepeln\u00fd \u0161ok a udr\u017eeli d\u00edly rovn\u00e9. Pot\u00e9 p\u0159ejd\u011bte na kone\u010dnou austenitiza\u010dn\u00ed teplotu.<\/li>\n\n\n\n<li>Pou\u017e\u00edvejte pec nebo pec se spolehliv\u00fdm regul\u00e1torem a ov\u011b\u0159en\u00fdm termo\u010dl\u00e1nkem. Pro k\u0159\u00ed\u017eovou kontrolu je u\u017eite\u010dn\u00fd ru\u010dn\u00ed pyrometr.<\/li>\n\n\n\n<li>Pokud m\u016f\u017eete, um\u00edst\u011bte termo\u010dl\u00e1nek na atrapu ty\u010de odpov\u00eddaj\u00edc\u00ed hmotnosti va\u0161eho d\u00edlu. T\u00edm zjist\u00edte, kdy m\u00e1 j\u00e1dro teplotu.<\/li>\n\n\n\n<li>S \u010dasov\u00e1n\u00edm nam\u00e1\u010den\u00ed za\u010dn\u011bte a\u017e pot\u00e9, co \u010d\u00e1st dos\u00e1hne c\u00edle. P\u0159i p\u0159eh\u0159\u00e1t\u00ed roste zrnitost, p\u0159i nedostate\u010dn\u00e9m oh\u0159evu z\u016fst\u00e1v\u00e1 austenit netvarovan\u00fd.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Kalen\u00ed a popou\u0161t\u011bn\u00ed: m\u00edch\u00e1n\u00ed, orientace d\u00edlu, okam\u017eit\u00e9 na\u010dasov\u00e1n\u00ed popou\u0161t\u011bn\u00ed<\/h3>\n\n\n\n<p>Kalen\u00ed uzamkne strukturu, kterou jste vytvo\u0159ili. Kalen\u00ed nastav\u00ed kone\u010dnou rovnov\u00e1hu.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ha\u0161en\u00ed prov\u00e1d\u011bjte jemn\u011b, ale d\u016fsledn\u011b. Myslete sp\u00ed\u0161e na rovnom\u011brn\u00e9 tvary p\u00edsmene \"S\" ne\u017e na prudk\u00e9 n\u00e1razy. T\u00edm se vyhnete probl\u00e9m\u016fm s parn\u00edm pl\u00e1\u0161t\u011bm a zlep\u0161\u00edte chlazen\u00ed.<\/li>\n\n\n\n<li>Dlouh\u00e9 d\u00edly orientujte v kalic\u00edm m\u00e9diu svisle, abyste omezili jejich oh\u00fdb\u00e1n\u00ed. Tenk\u00e9 \u010depele podep\u0159ete hranou dol\u016f, abyste omezili deformace.<\/li>\n\n\n\n<li>Ochla\u010fte na ru\u010dn\u00ed oh\u0159ev nebo na stanovenou teplotu (\u010dasto asi 100-150 \u00b0F). Neodkl\u00e1dejte dal\u0161\u00ed krok.<\/li>\n\n\n\n<li>Temperujte ihned po kalen\u00ed. U v\u011bt\u0161iny ocel\u00ed je t\u0159eba kalen\u00ed prov\u00e9st b\u011bhem n\u011bkolika minut. \u010cek\u00e1n\u00ed umo\u017e\u0148uje n\u00e1r\u016fst nap\u011bt\u00ed a vznik trhlin.<\/li>\n\n\n\n<li>K temperov\u00e1n\u00ed pou\u017e\u00edvejte kalibrovanou troubu. Nastavte si c\u00edlovou hodnotu podle po\u017eadovan\u00e9 tvrdosti a hou\u017eevnatosti. U velmi vysoce legovan\u00fdch ocel\u00ed zva\u017ete dv\u011b nebo dokonce t\u0159i temperace.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/4-13-1024x768.webp\" alt=\"proces tepeln\u00e9ho zpracov\u00e1n\u00ed\" class=\"wp-image-7957\" srcset=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/4-13-1024x768.webp 1024w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/4-13-300x225.webp 300w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/4-13-768x576.webp 768w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/4-13-16x12.webp 16w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/4-13.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1klady oceli: Slo\u017een\u00ed, t\u0159\u00eddy a reakce<\/h2>\n\n\n\n<p>Pokud teprve za\u010d\u00edn\u00e1te, c\u00edlem je vybrat si ocel, kter\u00e1 se v\u00e1m nebude vzp\u00edrat. N\u011bkter\u00e9 druhy oceli jsou extr\u00e9mn\u011b citliv\u00e9 na regulaci teploty, rychlost kalen\u00ed nebo dobu nam\u00e1\u010den\u00ed - to je skv\u011bl\u00e9 pro experty, ne tak skv\u011bl\u00e9 pro va\u0161e prvn\u00ed projekty. Ne\u017e se pod\u00edv\u00e1me na konkr\u00e9tn\u00ed doporu\u010den\u00ed, zde je stru\u010dn\u00e1 my\u0161lenka: vyberte si oceli, kter\u00e9 spolehliv\u011b kal\u00ed v oleji, snesou drobn\u00e9 chyby a p\u0159esto v\u00e1m poskytnou pevn\u00e9 a pou\u017eiteln\u00e9 d\u00edly, ani\u017e byste pot\u0159ebovali vybaven\u00ed na \u00farovni profesion\u00e1l\u016f. Pro zaji\u0161t\u011bn\u00ed rovnom\u011brn\u00e9ho povrchu a p\u0159esn\u00fdch rozm\u011br\u016f p\u0159ed tepeln\u00fdm zpracov\u00e1n\u00edm, <a href=\"https:\/\/www.uneedpm.com\/cs\/cnc-milling\/\">CNC fr\u00e9zov\u00e1n\u00ed<\/a> a <a href=\"https:\/\/www.uneedpm.com\/cs\/cnc-grinding\/\">brou\u0161en\u00ed<\/a> v\u00e1m pom\u016f\u017ee dos\u00e1hnout d\u00edl\u016f, kter\u00e9 budou d\u016fsledn\u011b reagovat na kalen\u00ed a popou\u0161t\u011bn\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Oby\u010dejn\u00fd uhl\u00edk vs. legovan\u00e9 vs. n\u00e1strojov\u00e9 oceli (1095, O1, D2, 52100) a kalitelnost<\/h3>\n\n\n\n<p>Vlastnosti oceli jsou d\u00e1ny obsahem uhl\u00edku a p\u0159\u00edm\u011bs\u00ed slitin.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oby\u010dejn\u00e9 uhl\u00edkov\u00e9 oceli (nap\u0159. 1018, 1045, 1095) se kal\u00ed pouze d\u00edky uhl\u00edku. Vy\u0161\u0161\u00ed obsah uhl\u00edku znamen\u00e1 vy\u0161\u0161\u00ed potenci\u00e1ln\u00ed tvrdost, ale men\u0161\u00ed prostor pro chybu p\u0159i kalen\u00ed.<\/li>\n\n\n\n<li>Do legovan\u00fdch ocel\u00ed (nap\u0159. 4140, 52100) se p\u0159id\u00e1vaj\u00ed prvky, jako je chrom nebo mangan, kter\u00e9 zvy\u0161uj\u00ed kalitelnost - schopnost kalit siln\u011bj\u0161\u00ed \u00faseky p\u0159i pomalej\u0161\u00edm ochlazov\u00e1n\u00ed.<\/li>\n\n\n\n<li>N\u00e1strojov\u00e9 oceli (nap\u0159. O1, A2, D2, M2) jsou konstruov\u00e1ny s ohledem na odolnost proti opot\u0159eben\u00ed a pevnost za tepla. \u010casto vy\u017eaduj\u00ed specifick\u00e9 p\u0159edeh\u0159evy, p\u0159esn\u00e9 popou\u0161t\u011bc\u00ed cykly a pe\u010dlivou kontrolu atmosf\u00e9ry.<\/li>\n<\/ul>\n\n\n\n<p>Nap\u0159\u00edklad:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ocel 1095 (ocel s vysok\u00fdm obsahem uhl\u00edku) vy\u017eaduje rychlej\u0161\u00ed kalen\u00ed a pe\u010dlivou kontrolu teploty, aby se zabr\u00e1nilo r\u016fstu zrn a k\u0159ehkosti.<\/li>\n\n\n\n<li>52100 (lo\u017eiskov\u00e1 ocel) obsahuje chrom a uhl\u00edk pro vysokou odolnost proti opot\u0159eben\u00ed a dobrou kalitelnost; b\u011b\u017en\u00e9 je kalen\u00ed v oleji.<\/li>\n\n\n\n<li>D2 je n\u00e1strojov\u00e1 ocel s vysok\u00fdm obsahem uhl\u00edku a chromu a velk\u00fdm mno\u017estv\u00edm karbid\u016f, kter\u00e9 zaji\u0161\u0165uj\u00ed odolnost proti opot\u0159eben\u00ed. Obvykle se austenitizuje p\u0159i vysok\u00e9 teplot\u011b a kal\u00ed se vzduchem\/plynem nebo deskov\u011b, aby se zabr\u00e1nilo vzniku trhlin.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Mikrostruktura 101: austenit, martenzit, perlit, bainit, ferit<\/h3>\n\n\n\n<p>Zde je pops\u00e1no, co se d\u011bje uvnit\u0159 p\u0159i tepeln\u00e9m zpracov\u00e1n\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V kritick\u00e9m bod\u011b se m\u011bn\u00ed struktura \u017eeleza. P\u0159i dostate\u010dn\u00e9m zah\u0159\u00e1t\u00ed se ferit a perlit p\u0159em\u011bn\u00ed na austenit.<\/li>\n\n\n\n<li>Rychl\u00fdm ochlazen\u00edm se austenit m\u011bn\u00ed na martenzit, tvrdou jehlicovitou strukturu, kter\u00e1 kalen\u00e9 oceli dod\u00e1v\u00e1 vysokou tvrdost a pevnost, ale tak\u00e9 k\u0159ehkost. <a href=\"https:\/\/nvlpubs.nist.gov\/nistpubs\/Legacy\/SP\/nbsspecialpublication424.pdf\">NIST<\/a> v\u00fdzkum (NBS Special Publication 424) uv\u00e1d\u00ed, \u017ee p\u0159em\u011bna austenitu na martenzit je \u0159\u00edzena bezdif\u00fazn\u00edm smykem, co\u017e je d\u016fvod, pro\u010d kalen\u00ed vytv\u00e1\u0159\u00ed tak vysokou tvrdost.<\/li>\n\n\n\n<li>P\u0159i pomalej\u0161\u00edm ochlazov\u00e1n\u00ed vznik\u00e1 perlit (vrstvy feritu a cementitu) nebo bainit, kter\u00e9 jsou tvrd\u0161\u00ed, ale m\u011bk\u010d\u00ed ne\u017e martenzit.<\/li>\n\n\n\n<li>Kalen\u00ed p\u0159i ni\u017e\u0161\u00ed teplot\u011b umo\u017e\u0148uje pohyb \u010d\u00e1sti uhl\u00edku, co\u017e sni\u017euje vnit\u0159n\u00ed pnut\u00ed a k\u0159ehkost. T\u00edm se vytv\u00e1\u0159\u00ed vyv\u00e1\u017een\u00e1 hou\u017eevnatost a z\u00e1rove\u0148 se zachov\u00e1v\u00e1 v\u011bt\u0161ina z\u00edskan\u00e9 tvrdosti.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Vliv legov\u00e1n\u00ed (C, Cr, Mo, V, Mn) na r\u016fst zrn a rychlost kalen\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Uhl\u00edk (C) ur\u010duje strop tvrdosti. Pokud je ho m\u00e1lo, nevytvo\u0159\u00ed se dostate\u010dn\u00e9 mno\u017estv\u00ed martenzitu; pokud je ho p\u0159\u00edli\u0161 mnoho, ocel je p\u0159i \u0161patn\u00e9m zach\u00e1zen\u00ed k\u0159ehk\u00e1.<\/li>\n\n\n\n<li>Chrom (Cr), molybden (Mo) a mangan (Mn) zpomaluj\u00ed p\u0159em\u011bny, tak\u017ee ocel m\u016f\u017ee tvrdnout p\u0159i pomalej\u0161\u00edm ochlazov\u00e1n\u00ed (jako v oleji nebo na vzduchu).<\/li>\n\n\n\n<li>Vanad (V) reguluje velikost zrn a vytv\u00e1\u0159\u00ed tvrd\u00e9 karbidy, kter\u00e9 zvy\u0161uj\u00ed odolnost proti opot\u0159eben\u00ed. Pom\u00e1h\u00e1 tak\u00e9 odol\u00e1vat r\u016fstu zrn p\u0159i vysok\u00fdch teplot\u00e1ch.<\/li>\n<\/ul>\n\n\n\n<p>Legovan\u00e1 ocel je zkr\u00e1tka p\u0159i kalen\u00ed \u0161etrn\u011bj\u0161\u00ed. Jednoduch\u00e9 oceli \u010dasto vy\u017eaduj\u00ed rychlej\u0161\u00ed kalen\u00ed s v\u011bt\u0161\u00edm rizikem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Jak\u00e1 ocel je pro za\u010d\u00e1te\u010dn\u00edky nejlep\u0161\u00ed k tepeln\u00e9mu zpracov\u00e1n\u00ed?<\/h3>\n\n\n\n<p>Vyberte si \u0161etrnou jakost s dobrou tvrdost\u00ed. Dv\u011b obl\u00edben\u00e9 volby jsou 1084 a 5160, proto\u017ee dob\u0159e tvrdnou v tepl\u00e9m oleji, odol\u00e1vaj\u00ed prask\u00e1n\u00ed a nepot\u0159ebuj\u00ed extr\u00e9mn\u00ed proces kalen\u00ed. Dob\u0159e reaguj\u00ed standardn\u00edmi n\u00e1stroji a je m\u00e9n\u011b pravd\u011bpodobn\u00e9, \u017ee potrestaj\u00ed drobn\u00e9 chyby. Pokud pou\u017eijete 1095, bu\u010fte p\u0159esn\u00ed p\u0159i zah\u0159\u00edv\u00e1n\u00ed a pe\u010dliv\u011b sledujte dobu nam\u00e1\u010den\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Procesn\u00ed p\u0159\u00edru\u010dka: \u017d\u00edh\u00e1n\u00ed, normalizace, kalen\u00ed, popou\u0161t\u011bn\u00ed<\/h2>\n\n\n\n<p>Ne\u017e si tyto procesy rozebereme, je dobr\u00e9 si uv\u011bdomit, \u017ee tepeln\u00e9 zpracov\u00e1n\u00ed nen\u00ed jen o zpevn\u011bn\u00ed oceli, ale tak\u00e9 o tvarov\u00e1n\u00ed jej\u00ed vnit\u0159n\u00ed struktury pro pot\u0159ebnou pr\u00e1ci. Ka\u017ed\u00fd krok v p\u0159\u00edru\u010dce m\u00e1 sv\u016fj \u00fa\u010del: \u017e\u00edh\u00e1n\u00ed pro dosa\u017een\u00ed m\u011bkkosti a uvoln\u011bn\u00ed nap\u011bt\u00ed, normalizace pro zjemn\u011bn\u00ed zrna, kalen\u00ed pro dosa\u017een\u00ed pevnosti a popou\u0161t\u011bn\u00ed pro dosa\u017een\u00ed rovnov\u00e1hy. Pova\u017eujte tuto \u010d\u00e1st za pl\u00e1n, kter\u00fd ukazuje, kdy a pro\u010d pou\u017e\u00edt jednotliv\u00e9 \u00fapravy, abyste mohli dos\u00e1hnout po\u017eadovan\u00fdch v\u00fdsledk\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u017d\u00edh\u00e1n\u00ed a uvol\u0148ov\u00e1n\u00ed nap\u011bt\u00ed: zm\u011bk\u010dov\u00e1n\u00ed, obrobitelnost, kontrola usazenin<\/h3>\n\n\n\n<p>\u017d\u00edh\u00e1n\u00ed, kdy\u017e pot\u0159ebujete obrobitelnost a m\u011bkkou, rovnom\u011brnou strukturu. Zah\u0159ejte na vhodn\u00fd rozsah (\u010dasto t\u011bsn\u011b nad kritickou hodnotu), podr\u017ete, aby se vyrovnal, a pomalu ochla\u010fte (v peci nebo v izola\u010dn\u00edm m\u00e9diu). T\u00edm se uvoln\u00ed zbytkov\u00e1 nap\u011bt\u00ed, zjemn\u00ed se krystalick\u00e1 struktura a zlep\u0161\u00ed se ta\u017enost.<\/p>\n\n\n\n<p>Pro uvoln\u011bn\u00ed nap\u011bt\u00ed po obr\u00e1b\u011bn\u00ed (bez \u00fapln\u00e9ho \u017e\u00edh\u00e1n\u00ed) zah\u0159ejte ocel na ni\u017e\u0161\u00ed teplotu (u mnoha ocel\u00ed 1 050-1 250 \u00b0F), udr\u017eujte ji v z\u00e1vislosti na tlou\u0161\u0165ce a nechte ji vychladnout na vzduchu. T\u00edm se sn\u00ed\u017e\u00ed deformace p\u0159i pozd\u011bj\u0161\u00edm kalen\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/5-12-1024x768.webp\" alt=\"zpevn\u011bn\u00ed kovu teplem\" class=\"wp-image-7958\" srcset=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/5-12-1024x768.webp 1024w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/5-12-300x225.webp 300w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/5-12-768x576.webp 768w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/5-12-16x12.webp 16w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/5-12.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Normalizace p\u0159\u00edpadu 1095: 1 600 \u00b0F, 15 minut nam\u00e1\u010den\u00ed, ochlazen\u00ed na vzduchu pro uvoln\u011bn\u00ed nap\u011bt\u00ed.<\/h3>\n\n\n\n<p>Normalizace je tepeln\u00e9 zpracov\u00e1n\u00ed, kter\u00e9 se pou\u017e\u00edv\u00e1 ke zjemn\u011bn\u00ed zrna a vyrovn\u00e1n\u00ed mikrostruktury p\u0159ed kalen\u00edm. Pro 1095 je praktick\u00fd n\u00e1sleduj\u00edc\u00ed pl\u00e1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zah\u0159ejte na teplotu p\u0159ibli\u017en\u011b 1 600 \u00b0F<\/li>\n\n\n\n<li>Po dosa\u017een\u00ed teploty podr\u017ete p\u0159ibli\u017en\u011b 15 minut<\/li>\n\n\n\n<li>Vyjm\u011bte ji a nechte vychladnout na pokojovou teplotu<\/li>\n<\/ul>\n\n\n\n<p>T\u00edmto krokem se sn\u00ed\u017e\u00ed nap\u011bt\u00ed zp\u016fsoben\u00e9 kov\u00e1n\u00edm nebo siln\u00fdm brou\u0161en\u00edm a z\u00edsk\u00e1 se jemn\u011bj\u0161\u00ed struktura, kter\u00e1 se rovnom\u011brn\u011bji vytvrzuje.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Recepty kalen\u00ed: p\u0159edeh\u0159ev, austenitizace, kalen\u00ed (D2 p\u0159i 1 800-1 850 \u00b0F).<\/h3>\n\n\n\n<p>Obecn\u00fd tok kalen\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159edeh\u0159ev (u n\u00e1strojov\u00fdch ocel\u00ed pom\u00e1h\u00e1 postupn\u00fd p\u0159edeh\u0159ev)<\/li>\n\n\n\n<li>Austenitizace p\u0159i stanoven\u00e9m rozsahu oceli<\/li>\n\n\n\n<li>Chlazen\u00ed v doporu\u010den\u00e9m m\u00e9diu<\/li>\n\n\n\n<li>Rychle se zm\u00edrn\u00ed, \u010dasto dvakr\u00e1t<\/li>\n<\/ul>\n\n\n\n<p>P\u0159\u00edklady:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D2: P\u0159edeh\u0159\u00edvejte postupn\u011b (nap\u0159. ~1 200\u00b0F a pak ~1 450\u00b0F), austenitizujte p\u0159i teplot\u011b kolem 1 800-1 850\u00b0F, udr\u017eujte podle tlou\u0161\u0165ky \u0159ezu, pak kalte vzduchem\/plynem nebo kalte na plechu. Okam\u017eit\u011b kalte.<\/li>\n\n\n\n<li>1095: Po vyrovn\u00e1n\u00ed se austenitizuje p\u0159i teplot\u00e1ch kolem 1475-1500 \u00b0F s minim\u00e1ln\u00edm nam\u00e1\u010den\u00edm, kal\u00ed se v tepl\u00e9m rychl\u00e9m oleji a pak se okam\u017eit\u011b popou\u0161t\u00ed.<\/li>\n\n\n\n<li>52100: Austenitizujte p\u0159i teplot\u011b asi 1 500-1 550 \u00b0F s kr\u00e1tk\u00fdm nam\u00e1\u010den\u00edm, kalte v oleji s dobr\u00fdm m\u00edch\u00e1n\u00edm, popou\u0161t\u011bjte podle pot\u0159eby pro danou slu\u017ebu.<\/li>\n<\/ul>\n\n\n\n<p>Jedn\u00e1 se o b\u011b\u017en\u00e9 rozsahy. V\u017edy si je ov\u011b\u0159te pro konkr\u00e9tn\u00ed \u0161ar\u017ei a velikost d\u00edlu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Strategie zm\u00edr\u0148ov\u00e1n\u00ed: 400-800 \u00b0F, dvojit\u00e9 popou\u0161t\u011bn\u00ed, kryogenn\u00ed mo\u017enosti.<\/h3>\n\n\n\n<p>Kalen\u00ed zm\u00edr\u0148uje k\u0159ehkost a stabilizuje strukturu. Typick\u00e9 teploty popou\u0161t\u011bn\u00ed pro mnoho kalic\u00edch prac\u00ed se pohybuj\u00ed mezi 400-800 \u00b0F. Ni\u017e\u0161\u00ed teploty (p\u0159ibli\u017en\u011b 350-450 \u00b0F) udr\u017euj\u00ed v\u011bt\u0161\u00ed tvrdost pro \u0159ezn\u00e9 hrany, zat\u00edmco vy\u0161\u0161\u00ed teploty (500-600 \u00b0F a v\u00edce) se pou\u017e\u00edvaj\u00ed, pokud je hou\u017eevnatost d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e \u0161pi\u010dkov\u00e1 tvrdost.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dvojit\u00e9 popou\u0161t\u011bn\u00ed pom\u00e1h\u00e1 n\u00e1strojov\u00fdm ocel\u00edm t\u00edm, \u017ee sni\u017euje mno\u017estv\u00ed zadr\u017een\u00e9ho austenitu a stabilizuje martenzit.<\/li>\n\n\n\n<li>U n\u011bkter\u00fdch vysoce legovan\u00fdch jakost\u00ed m\u016f\u017ee kryogenn\u00ed krok mezi popou\u0161t\u011bn\u00edm (nap\u0159. zpracov\u00e1n\u00ed za studena pomoc\u00ed such\u00e9ho ledu a alkoholu nebo kapaln\u00e9ho dus\u00edku vy\u0161kolen\u00fdmi u\u017eivateli) p\u0159em\u011bnit zachovan\u00fd austenit na martenzit p\u0159ed druh\u00fdm popou\u0161t\u011bn\u00edm. Pokud pou\u017e\u00edv\u00e1te kryogeniku, dodr\u017eujte bezpe\u010dn\u00e9 postupy.<\/li>\n<\/ul>\n\n\n\n<p>Vyhn\u011bte se rozpou\u0161t\u011bc\u00ed k\u0159ehkosti v rozmez\u00ed uveden\u00e9m pro va\u0161i ocel. N\u011bkter\u00e9 legovan\u00e9 oceli vykazuj\u00ed pokles hou\u017eevnatosti, pokud jsou udr\u017eov\u00e1ny v ur\u010dit\u00fdch teplotn\u00edch p\u00e1smech.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vybaven\u00ed a nastaven\u00ed pro dom\u00e1c\u00ed a profesion\u00e1ln\u00ed obchody<\/h2>\n\n\n\n<p>Ne\u017e za\u010dnete volit teploty a harmonogramy ochlazov\u00e1n\u00ed, je dobr\u00e9 si uv\u011bdomit, co va\u0161e za\u0159\u00edzen\u00ed um\u00ed - a co neum\u00ed. Dobr\u00e9 tepeln\u00e9 zpracov\u00e1n\u00ed je stejn\u011b tak o kontrole jako o teplu a zvolen\u00e9 n\u00e1stroje p\u0159\u00edmo ovliv\u0148uj\u00ed konzistenci, kvalitu povrchu a bezpe\u010dnost. A\u0165 u\u017e pracujete v mal\u00e9 dom\u00e1c\u00ed d\u00edln\u011b, nebo v pln\u011b vybaven\u00e9m profesion\u00e1ln\u00edm za\u0159\u00edzen\u00ed, v n\u00e1sleduj\u00edc\u00ed \u010d\u00e1sti rozebereme to nejd\u016fle\u017eit\u011bj\u0161\u00ed, abyste v\u011bd\u011bli, jak z va\u0161eho za\u0159\u00edzen\u00ed z\u00edskat spolehliv\u00e9 a opakovateln\u00e9 v\u00fdsledky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Zdroje tepla: pece, pece, kov\u00e1rny; regul\u00e1tory, termo\u010dl\u00e1nky, pyrometry<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nejlep\u0161\u00ed p\u0159esnou regulaci teploty nab\u00edz\u00ed pec nebo pec s digit\u00e1ln\u00edm regul\u00e1torem.<\/li>\n\n\n\n<li>Plynov\u00e1 nebo uheln\u00e1 kov\u00e1rna m\u016f\u017ee fungovat, pokud v\u00edte, jak kontrolovat hork\u00e1 m\u00edsta, a pou\u017e\u00edv\u00e1te termo\u010dl\u00e1nek k m\u011b\u0159en\u00ed teploty.<\/li>\n\n\n\n<li>Ru\u010dn\u00ed pyrometr a spolehliv\u00fd termo\u010dl\u00e1nek v\u00e1m pomohou potvrdit, co ocel \"vid\u00ed\", nejen to, co \u0159\u00edk\u00e1 obrazovka pece.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Atmosf\u00e9ry: f\u00f3lie, vakuov\u00e9 pece, inertn\u00ed plyn, soln\u00e9 l\u00e1zn\u011b.<\/h3>\n\n\n\n<p>\u0158\u00edzen\u00ed atmosf\u00e9ry sni\u017euje tvorbu okuj\u00ed a oduhli\u010den\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nerezov\u00e1 f\u00f3lie na n\u00e1\u0159ad\u00ed je nejjednodu\u0161\u0161\u00ed zp\u016fsob ochrany povrch\u016f v mal\u00fdch d\u00edln\u00e1ch. P\u0159i zah\u0159\u00edv\u00e1n\u00ed se zabal\u00ed, p\u0159i ochlazov\u00e1n\u00ed se otev\u0159e.<\/li>\n\n\n\n<li>Vakuov\u00e9 syst\u00e9my a syst\u00e9my s inertn\u00edm plynem poskytuj\u00ed nej\u010dist\u0161\u00ed v\u00fdsledky a jsou b\u011b\u017en\u00e9 v profesion\u00e1ln\u00edm prost\u0159ed\u00ed.<\/li>\n\n\n\n<li>Soln\u00e9 l\u00e1zn\u011b nab\u00edzej\u00ed rychl\u00fd, rovnom\u011brn\u00fd oh\u0159ev a sn\u00ed\u017een\u00ed tvorby vodn\u00edho kamene, ale vy\u017eaduj\u00ed d\u016fkladn\u00e9 bezpe\u010dnostn\u00ed postupy a \u0161kolen\u00ed.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Syst\u00e9my kalen\u00ed: olejov\u00e9 n\u00e1dr\u017ee, voda\/slan\u00fd roztok, vzduch\/plyn; m\u00edch\u00e1n\u00ed a dimenzov\u00e1n\u00ed n\u00e1dr\u017e\u00ed.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U drobn\u00fdch prac\u00ed dimenzujte kalic\u00ed n\u00e1dr\u017e na minim\u00e1ln\u011b desetin\u00e1sobek hmotnosti hork\u00e9ho kovu. V\u011bt\u0161\u00ed mno\u017estv\u00ed je bezpe\u010dn\u011bj\u0161\u00ed; zabra\u0148uje p\u0159eh\u0159\u00e1t\u00ed m\u00e9dia.<\/li>\n\n\n\n<li>Pou\u017e\u00edvejte nasazen\u00e9 v\u00edko nebo kryt, kter\u00fd lze v p\u0159\u00edpad\u011b vzplanut\u00ed n\u00e1dr\u017ee zasunout.<\/li>\n\n\n\n<li>Tepl\u00fd olej zlep\u0161uje konzistenci. Udr\u017eujte ho hluboko pod bodem vzplanut\u00ed a v doporu\u010den\u00e9m provozn\u00edm rozsahu.<\/li>\n\n\n\n<li>Napl\u00e1nujte si pohyby tak, aby byla cesta od pece ke kal\u00edrn\u011b jasn\u00e1 a kr\u00e1tk\u00e1.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Lze tepeln\u011b zpracov\u00e1vat ocel v dom\u00e1c\u00ed peci nebo kov\u00e1rn\u011b?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dom\u00e1c\u00ed trouba: Ano pro temperov\u00e1n\u00ed. V\u011bt\u0161ina dom\u00e1c\u00edch trub dosahuje teploty 400-500 \u00b0C, co\u017e je ide\u00e1ln\u00ed pro mnoho temperac\u00ed. Pro ov\u011b\u0159en\u00ed pou\u017eijte teplom\u011br v troub\u011b. Dom\u00e1c\u00ed trouba v\u0161ak nem\u016f\u017ee dos\u00e1hnout austenitiza\u010dn\u00ed teploty pro kalen\u00ed.<\/li>\n\n\n\n<li>Kov\u00e1rna: Ano pro kalen\u00ed, pokud m\u016f\u017eete kontrolovat teplotu. Pou\u017eijte termo\u010dl\u00e1nek a nau\u010dte se \u0159\u00eddit hork\u00e1 m\u00edsta. F\u00f3lie a desky pom\u00e1haj\u00ed zlep\u0161it konzistenci, ale \u0159\u00edzen\u00e1 pec je pro za\u010d\u00e1te\u010dn\u00edky jednodu\u0161\u0161\u00ed.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/6-5-1024x768.webp\" alt=\"typy tepeln\u00e9ho zpracov\u00e1n\u00ed\" class=\"wp-image-7959\" srcset=\"https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/6-5-1024x768.webp 1024w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/6-5-300x225.webp 300w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/6-5-768x576.webp 768w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/6-5-16x12.webp 16w, https:\/\/www.uneedpm.com\/wp-content\/uploads\/2025\/12\/6-5.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Kontrola kvality, testov\u00e1n\u00ed a \u0159e\u0161en\u00ed probl\u00e9m\u016f<\/h2>\n\n\n\n<p>Ne\u017e budete moci d\u016fv\u011b\u0159ovat jak\u00e9mukoli tepeln\u011b zpracovan\u00e9mu d\u00edlu, mus\u00edte prok\u00e1zat, \u017ee v\u00e1\u0161 proces skute\u010dn\u011b zajistil po\u017eadovanou tvrdost, hou\u017eevnatost a konzistenci. Tato \u010d\u00e1st v\u00e1s provede jednoduch\u00fdmi kontrolami, pokro\u010dilej\u0161\u00edmi testy a z\u00e1kladn\u00edmi n\u00e1vyky dokumentace, kter\u00e9 odd\u011bluj\u00ed dohady od opakovateln\u00fdch v\u00fdsledk\u016f. A\u0165 u\u017e tepeln\u011b zpracov\u00e1v\u00e1te doma nebo provozujete malou d\u00edlnu, tyto n\u00e1stroje v\u00e1m pomohou potvrdit, co se stalo uvnit\u0159 oceli - a odstranit probl\u00e9my d\u0159\u00edve, ne\u017e se z nich stanou poruchy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ov\u011b\u0159te v\u00fdsledky: Zkou\u0161ky Rockwell HRC, zkou\u0161ky piln\u00edkem, kupony, mikrolept\u00e1n\u00ed<\/h3>\n\n\n\n<p>Dokud nezm\u011b\u0159\u00edte, \u010deho jste dos\u00e1hli, nev\u00edte, \u010deho jste dos\u00e1hli.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zkou\u0161ka tvrdosti: Zkou\u0161ka tvrdosti podle Rockwella C (HRC) je standardem pro kalenou ocel. K dispozici jsou p\u0159enosn\u00e9 testery a laborato\u0159e mohou otestovat va\u0161e d\u00edly.<\/li>\n\n\n\n<li>Test soubor\u016f: Rychl\u00e1 kontrola. Pokud nov\u00fd piln\u00edk po kalen\u00ed klou\u017ee po hran\u011b, pravd\u011bpodobn\u011b se vytvo\u0159il martenzit. Po kalen\u00ed by se piln\u00edk m\u011bl st\u00e1le kousat m\u00e9n\u011b ne\u017e u \u017e\u00edhan\u00e9 oceli.<\/li>\n\n\n\n<li>Kup\u00f3ny: Tepeln\u011b zpracujte od\u0159ezek se zak\u00e1zkou. Rozlomte jej ve sv\u011br\u00e1ku, abyste vid\u011bli lom a zkontrolovali tvrdost a hou\u017eevnatost.<\/li>\n\n\n\n<li>Microetch: Jednoduch\u00fd nitalov\u00fd lept na brou\u0161en\u00e9m povrchu m\u016f\u017ee odhalit oduhli\u010den\u00ed, velikost zrn a p\u0159\u00edpadn\u00e9 vytvo\u0159en\u00ed pouzdra.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Dokumentace: \u010dasov\u00e9 a teplotn\u00ed z\u00e1znamy, doba nam\u00e1\u010den\u00ed podle tlou\u0161\u0165ky<\/h3>\n\n\n\n<p>Zaznamen\u00e1vejte si teplotu, \u010das vstupu a v\u00fdstupu, pozn\u00e1mky k ochlazov\u00e1n\u00ed a \u00fadaje o temperaci. Zaznamenejte si tlou\u0161\u0165ku d\u00edlu a p\u0159\u00edpadn\u00e9 p\u0159edeh\u0159evy. Jednoduch\u00fd z\u00e1pisn\u00edk v\u00e1m umo\u017en\u00ed zopakovat, co se povedlo, a opravit, co se nepovedlo.<\/p>\n\n\n\n<p>Z\u00e1kladn\u00ed tipy pro na\u010dasov\u00e1n\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u010casov\u00e1n\u00ed nam\u00e1\u010den\u00ed za\u010dn\u011bte po dosa\u017een\u00ed c\u00edlov\u00e9 hodnoty d\u00edlu.<\/li>\n\n\n\n<li>U jednoduch\u00fdch ocel\u00ed s vysok\u00fdm obsahem uhl\u00edku pou\u017e\u00edvejte kr\u00e1tk\u00e9 nam\u00e1\u010den\u00ed, abyste zabr\u00e1nili r\u016fstu zrn.<\/li>\n\n\n\n<li>Siln\u011bj\u0161\u00ed profily a vysoce legovan\u00e9 oceli \u010dasto vy\u017eaduj\u00ed del\u0161\u00ed vyrovn\u00e1v\u00e1n\u00ed a \u0159\u00edzen\u00e9 chlazen\u00ed.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Oprava vad: deformace, prask\u00e1n\u00ed, oduhli\u010den\u00ed, okuj\u00ed, k\u0159ehkost temperace<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Deformace: P\u0159ed vytvrzen\u00edm sni\u017ete teplo p\u0159i brou\u0161en\u00ed. Pro ploch\u00e9 d\u00edly pou\u017eijte kalen\u00ed desek. Tenk\u00e9 d\u00edly b\u011bhem kalen\u00ed upevn\u011bte. V p\u0159\u00edpad\u011b pot\u0159eby rovnejte p\u0159i teplot\u011b popou\u0161t\u011bn\u00ed (v r\u00e1mci bezpe\u010dn\u00e9ho rozsahu oceli).<\/li>\n\n\n\n<li>Cracking: Obvykl\u00fdmi p\u0159\u00ed\u010dinami jsou p\u0159\u00edli\u0161 rychl\u00e9 kalen\u00ed, p\u0159\u00edli\u0161 studen\u00e9 nebo p\u0159\u00edli\u0161 hork\u00e9 kalen\u00ed, ostr\u00e9 rohy a prodlevy p\u0159ed popou\u0161t\u011bn\u00edm. U citliv\u00fdch ocel\u00ed zvolte \u0161etrn\u011bj\u0161\u00ed m\u00e9dium, p\u0159idejte p\u0159edeh\u0159ev nebo zkra\u0165te dobu nam\u00e1\u010den\u00ed.<\/li>\n\n\n\n<li>Oduhli\u010den\u00ed a odv\u00e1pn\u011bn\u00ed: Pou\u017eijte f\u00f3lii nebo \u0159\u00edzenou atmosf\u00e9ru. V p\u0159\u00edpad\u011b pot\u0159eby po vytvrzen\u00ed posti\u017eenou vrstvu p\u0159ebruste.<\/li>\n\n\n\n<li>K\u0159ehkost: Vyhn\u011bte se dr\u017een\u00ed ve zn\u00e1m\u00fdch rizikov\u00fdch p\u00e1smech pro va\u0161i ocel. Pokud k n\u011bmu dojde, zah\u0159ejte jej na vy\u0161\u0161\u00ed bezpe\u010dnou teplotu a ochla\u010fte na vzduchu.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Jak zjist\u00edm, zda se tepeln\u00e9 zpracov\u00e1n\u00ed povedlo?<\/h3>\n\n\n\n<p>Zkontrolujte tvrdost, vyzkou\u0161ejte piln\u00edkovou zkou\u0161ku, a pokud je to mo\u017en\u00e9, otestujte kup\u00f3n a\u017e do selh\u00e1n\u00ed. Pokud je d\u00edl po kalen\u00ed tvrd\u00fd a \u0161patn\u011b dr\u017e\u00ed piln\u00edk a pokud po popu\u0161t\u011bn\u00ed odol\u00e1v\u00e1 od\u0161t\u00edpnut\u00ed p\u0159i skute\u010dn\u00e9m pou\u017eit\u00ed, pravd\u011bpodobn\u011b jste se trefili. Pro p\u0159esnou pr\u00e1ci si po\u0159i\u010fte test HRC a zdokumentujte sv\u016fj postup tepeln\u00e9ho zpracov\u00e1n\u00ed pro opakovan\u00e9 s\u00e9rie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">P\u0159\u00edpadov\u00e9 studie a osv\u011bd\u010den\u00e9 recepty<\/h2>\n\n\n\n<p>Tyto p\u0159\u00edklady ukazuj\u00ed, jak prom\u011bnit data v \u010diny. V\u017edy potvr\u010fte pro svou d\u00e1vku oceli a velikost pr\u016f\u0159ezu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00e1strojov\u00e1 ocel D2: p\u0159edeh\u0159\u00e1t\u00ed ~1 200\u00b0F; austenitizace 1 800-1 850\u00b0F; kalen\u00ed v plynu\/vakuu; okam\u017eit\u00e9 popu\u0161t\u011bn\u00ed.<\/h3>\n\n\n\n<p>D2 pot\u0159ebuje kontrolu, aby zaz\u00e1\u0159ila.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159edeh\u0159\u00edvejte ve dvou kroc\u00edch (asi 1 200 \u00b0F a pak ~ 1 450 \u00b0F).<\/li>\n\n\n\n<li>Jakmile je j\u00e1dro na teplot\u011b, austenitizujte p\u0159i teplot\u011b kolem 1800-1850 \u00b0F se stabiln\u00edm nam\u00e1\u010den\u00edm.<\/li>\n\n\n\n<li>Kalen\u00ed prov\u00e1d\u011bjte v klidn\u00e9m nebo nucen\u00e9m vzduchu, inertn\u00edm plynu nebo mezi siln\u00fdmi hlin\u00edkov\u00fdmi deskami. C\u00edlem je rovnom\u011brn\u00e9 chlazen\u00ed bez n\u00e1raz\u016f.<\/li>\n\n\n\n<li>Okam\u017eit\u011b se zm\u00edrn\u011bte. Mnoho d\u00edlen pou\u017e\u00edv\u00e1 dvoj\u00ed temperov\u00e1n\u00ed, aby se sn\u00ed\u017eil zadr\u017eovan\u00fd austenit. Zvolte temperaci podle druhu provozu. Nap\u0159\u00edklad u \u0159ezn\u00fdch n\u00e1stroj\u016f m\u016f\u017ee b\u00fdt pro vy\u0161\u0161\u00ed tvrdost vhodn\u011bj\u0161\u00ed ni\u017e\u0161\u00ed temperace, u lisovac\u00edch n\u00e1stroj\u016f vy\u0161\u0161\u00ed pro vy\u0161\u0161\u00ed hou\u017eevnatost.<\/li>\n<\/ul>\n\n\n\n<p>Hlavn\u00ed rizika: p\u0159eh\u0159\u00e1t\u00ed, \u0161patn\u00e1 kontrola atmosf\u00e9ry (hrubnut\u00ed karbidu a oduhli\u010den\u00ed) a opo\u017ed\u011bn\u00e9 popou\u0161t\u011bn\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1095 pl\u00e1n: normalizace 1 600 \u00b0F\/15 min chlazen\u00ed na vzduchu; kalen\u00ed v oleji; popou\u0161t\u011bn\u00ed pro hou\u017eevnatost<\/h3>\n\n\n\n<p>1095 je jednoduch\u00fd, ale citliv\u00fd.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nejprve normalizujte p\u0159i teplot\u011b asi 1600 \u00b0F po dobu ~15 minut; ochla\u010fte na vzduchu.<\/li>\n\n\n\n<li>Austenitizujte p\u0159i teplot\u00e1ch kolem 1475-1500 \u00b0C s minim\u00e1ln\u00edm nam\u00e1\u010den\u00edm (jen tolik, aby se vyrovnaly); vyhn\u011bte se dlouh\u00e9mu zdr\u017een\u00ed, abyste zabr\u00e1nili r\u016fstu zrn.<\/li>\n\n\n\n<li>Pochla\u010fte v tepl\u00e9m rychl\u00e9m oleji a dob\u0159e prom\u00edchejte.<\/li>\n\n\n\n<li>Kalen\u00ed podle pou\u017eit\u00ed; ni\u017e\u0161\u00ed kalen\u00ed zachov\u00e1v\u00e1 tvrdost pro \u010depele, vy\u0161\u0161\u00ed kalen\u00ed zvy\u0161uje hou\u017eevnatost pro pru\u017einy.<\/li>\n<\/ul>\n\n\n\n<p>Pozor na oduhli\u010den\u00ed. Chra\u0148te povrchy nebo napl\u00e1nujte n\u00e1sledn\u00e9 brou\u0161en\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Srovn\u00e1n\u00ed 52100: vzduch vs. olej vs. voda (re\u00e1ln\u00e9 v\u00fdsledky)<\/h3>\n\n\n\n<p>52100 je lo\u017eiskov\u00e1 ocel navr\u017een\u00e1 pro vysokou odolnost proti opot\u0159eben\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u011b\u017enou volbou je kalen\u00ed olejem, kter\u00e9 poskytuje vysokou tvrdost s p\u0159im\u011b\u0159en\u00fdm rizikem.<\/li>\n\n\n\n<li>Kalen\u00ed vodou je riskantn\u00ed a nedoporu\u010duje se, proto\u017ee u siln\u011bj\u0161\u00edch profil\u016f hroz\u00ed prask\u00e1n\u00ed a deformace.<\/li>\n\n\n\n<li>Tenk\u00e9 profily lze do ur\u010dit\u00e9 m\u00edry vytvrdit na vzduchu, proto\u017ee 52100 m\u00e1 dobrou tvrdost, ale tvrdost cel\u00e9ho pr\u016f\u0159ezu je spolehliv\u011bj\u0161\u00ed pomoc\u00ed oleje.<\/li>\n<\/ul>\n\n\n\n<p>Typick\u00fdm pl\u00e1nem je austenitizace p\u0159i teplot\u011b asi 1 500-1 550 \u00b0F s kr\u00e1tk\u00fdm nam\u00e1\u010den\u00edm, kalen\u00ed v tepl\u00e9m oleji a popou\u0161t\u011bn\u00ed pro c\u00edlov\u00e9 pou\u017eit\u00ed.<\/p>\n\n\n\n<p>Tabulka: Typick\u00e9 rozsahy austenitizace a temperace<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">T\u0159\u00edda oceli<\/th><th class=\"has-text-align-center\" data-align=\"center\">Teplota austenitizace<\/th><th class=\"has-text-align-center\" data-align=\"center\">Hasic\u00ed m\u00e9dium<\/th><th class=\"has-text-align-center\" data-align=\"center\">Rozsah teplot<\/th><th class=\"has-text-align-center\" data-align=\"center\">Pozn\u00e1mky<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">1095<\/td><td class=\"has-text-align-center\" data-align=\"center\">~1,475-1,500\u00b0F<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ha\u0161en\u00ed olejem<\/td><td class=\"has-text-align-center\" data-align=\"center\">350-500 \u00b0F pro \u0159ezn\u00e9 hrany; vy\u0161\u0161\u00ed pro hou\u017eevnatost<\/td><td class=\"has-text-align-center\" data-align=\"center\">Jednoduch\u00e1 ocel s vysok\u00fdm obsahem uhl\u00edku; dob\u0159e reaguje na m\u011blk\u00e9 kalen\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">52100<\/td><td class=\"has-text-align-center\" data-align=\"center\">~1,500-1,550\u00b0F<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ha\u0161en\u00ed olejem<\/td><td class=\"has-text-align-center\" data-align=\"center\">350-500 \u00b0F pro vysokou tvrdost; vy\u0161\u0161\u00ed pro odolnost proti n\u00e1razu<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lo\u017eiskov\u00e1 ocel; jemn\u00e9 karbidy; vynikaj\u00edc\u00ed odolnost proti opot\u0159eben\u00ed.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">~1,800-1,850\u00b0F<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vzduch \/ plyn \/ kalen\u00ed desek<\/td><td class=\"has-text-align-center\" data-align=\"center\">400-1 000 \u00b0F v z\u00e1vislosti na po\u017eadovan\u00e9 tvrdosti; \u010dasto dvoj\u00ed temperov\u00e1n\u00ed<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vysokolegovan\u00e1 n\u00e1strojov\u00e1 ocel; kalen\u00ed na vzduchu; vysok\u00e1 odolnost proti opot\u0159eben\u00ed.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Kontext odv\u011btv\u00ed: &gt;Opakovateln\u00e9 \"recepty\" a schopnost procesu.<\/h3>\n\n\n\n<p>Ocel je v\u0161ude, od automobil\u016f po \u0159ezn\u00e9 n\u00e1stroje. Ve Spojen\u00fdch st\u00e1tech se ro\u010dn\u011b vyrob\u00ed \u0159\u00e1dov\u011b des\u00edtky milion\u016f tun oceli a tepeln\u00e9 zpracov\u00e1n\u00ed oceli je z\u00e1kladem velk\u00e9 \u010d\u00e1sti t\u00e9to hodnoty - kalen\u00ed ozuben\u00fdch kol, n\u00e1stroj\u016f, lo\u017eisek a konstruk\u010dn\u00edch d\u00edl\u016f tak, aby spl\u0148ovaly p\u0159esn\u00e9 specifikace. Opakovateln\u00e9 \"receptury\" a zdokumentovan\u00e9 procesy jsou d\u016fvodem, pro\u010d se pr\u016fmyslov\u00e1 odv\u011btv\u00ed mohou den co den spolehnout na stejn\u00e9 v\u00fdsledky.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Shrnut\u00ed a hlavn\u00ed z\u00e1v\u011bry<\/h2>\n\n\n\n<p>Pokud si n\u011bco pamatujete, pamatujte si kontrolu. Kdy\u017e m\u00e1te pod kontrolou teplotu, \u010das a rychlost kalen\u00ed, m\u00e1te pod kontrolou v\u00fdsledky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kontrola t\u0159\u00ed pil\u00ed\u0159\u016f: austenitizace, kalen\u00ed, popou\u0161t\u011bn\u00ed a n\u00e1sledn\u00e9 ov\u011b\u0159en\u00ed.<\/h3>\n\n\n\n<p>Ka\u017ed\u00fd pil\u00ed\u0159 ovliv\u0148uje dal\u0161\u00ed. Sebelep\u0161\u00ed kalen\u00ed nem\u016f\u017ee napravit \u0161patnou austenitizaci. Ani nejlep\u0161\u00ed popou\u0161t\u011bn\u00ed nezachr\u00e1n\u00ed praskl\u00fd d\u00edl. M\u011b\u0159te a zkou\u0161ejte.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159esnost teploty (\u00b125 \u00b0F), odpov\u00eddaj\u00edc\u00ed nam\u00e1\u010den\u00ed a volba ochlazov\u00e1n\u00ed \u0159\u00edd\u00ed v\u00fdsledky<\/h3>\n\n\n\n<p>Mal\u00e1 chyba p\u0159i vysok\u00e9 teplot\u011b m\u016f\u017ee zp\u016fsobit velk\u00e9 zm\u011bny ve velikosti zrn a tvrdosti. Namo\u010dte dostate\u010dn\u011b, aby se teplota vyrovnala, a pak kalte ve spr\u00e1vn\u00e9m m\u00e9diu pro va\u0161i ocel a velikost pr\u016f\u0159ezu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u011b\u0159en\u00ed tvrdosti, dokumentace a iterace s rozvrhy specifick\u00fdmi pro ocel.<\/h3>\n\n\n\n<p>Prove\u010fte zkou\u0161ku tvrdosti (HRC) a zapi\u0161te si postup. Pot\u00e9 jej zdokonalujte, dokud nez\u00edsk\u00e1te opakovateln\u00e9 v\u00fdsledky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pot\u0159ebuji vakuovou pec na n\u00e1strojov\u00e9 oceli?<\/h3>\n\n\n\n<p>Ne, ne v\u017edy. Vakuov\u00e1 pec nebo pec s \u0159\u00edzenou atmosf\u00e9rou poskytuje velmi \u010dist\u00e9 v\u00fdsledky a je skv\u011bl\u00e1 pro n\u00e1strojov\u00e9 oceli kalen\u00e9 vzduchem, ale m\u016f\u017eete dos\u00e1hnout solidn\u00edch v\u00fdsledk\u016f s dob\u0159e kontrolovanou pec\u00ed, f\u00f3liov\u00fdm obalem a spr\u00e1vn\u00fdmi metodami kalen\u00ed. U vysoce legovan\u00fdch t\u0159\u00edd, jako je D2, tyto pokro\u010dil\u00e9 syst\u00e9my sni\u017euj\u00ed tvorbu okuj\u00ed a oduhli\u010den\u00ed, ale pro dobr\u00e9 v\u00fdsledky v mnoha mal\u00fdch d\u00edln\u00e1ch nejsou povinn\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nej\u010dast\u011bj\u0161\u00ed dotazy<\/h2>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Odkazy:<\/h2>\n\n\n\n<p><a href=\"https:\/\/nvlpubs.nist.gov\/nistpubs\/Legacy\/SP\/nbsspecialpublication424.pdf\">https:\/\/nvlpubs.nist.gov\/nistpubs\/Legacy\/SP\/nbsspecialpublication424.pdf<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/worldsteel.org\/steel-topics\/statistics\/world-steel-in-figures\/\">https:\/\/worldsteel.org\/steel-topics\/statistics\/world-steel-in-figures\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Based on data from the World Steel Association, global steel production exceeds 1.8 billion tonnes annually, highlighting how essential proper heat treatment is for performance and reliability. Heat treating steel is not magic. It\u2019s control. When you heat to the right austenitizing range, soak long enough, quench in the right medium, and temper on time, [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":7954,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"Learn how to heat treat steel with this 2025 complete guide. Discover step-by-step instructions, quench and temper choices, temperature ranges, safety tips, and microstructure insights to strengthen metal with heat.","_seopress_robots_index":"","_daim_seo_power":"","_daim_enable_ail":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-7951","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/posts\/7951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/comments?post=7951"}],"version-history":[{"count":1,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/posts\/7951\/revisions"}],"predecessor-version":[{"id":7960,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/posts\/7951\/revisions\/7960"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/media\/7954"}],"wp:attachment":[{"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/media?parent=7951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/categories?post=7951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.uneedpm.com\/cs\/wp-json\/wp\/v2\/tags?post=7951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}