{"id":3972,"date":"2025-08-27T18:33:44","date_gmt":"2025-08-27T16:33:44","guid":{"rendered":"https:\/\/ipocitac.cz\/?p=3972"},"modified":"2025-08-27T18:33:46","modified_gmt":"2025-08-27T16:33:46","slug":"tepelne-zpracovani-kovu-klic-k-optimalnim-vlastnostem-materialu-ve-strojirenstvi","status":"publish","type":"post","link":"https:\/\/ipocitac.cz\/?p=3972","title":{"rendered":"Tepeln\u00e9 zpracov\u00e1n\u00ed kov\u016f: Kl\u00ed\u010d k optim\u00e1ln\u00edm vlastnostem materi\u00e1l\u016f ve stroj\u00edrenstv\u00ed"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">\u00davod<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Tepeln\u00e9 zpracov\u00e1n\u00ed je soubor technologick\u00fdch proces\u016f, p\u0159i kter\u00fdch se materi\u00e1l (obvykle kov) zah\u0159\u00edv\u00e1, udr\u017euje na ur\u010dit\u00e9 teplot\u011b a n\u00e1sledn\u011b ochlazuje podle specifick\u00fdch re\u017eim\u016f. C\u00edlem je upravit mikrostrukturu materi\u00e1lu tak, aby z\u00edskal po\u017eadovan\u00e9 mechanick\u00e9 vlastnosti, jako jsou tvrdost, hou\u017eevnatost, pevnost nebo tv\u00e1rnost. Bez spr\u00e1vn\u00e9ho tepeln\u00e9ho zpracov\u00e1n\u00ed by strojn\u00ed d\u00edly nebyly schopn\u00e9 odol\u00e1vat n\u00e1ro\u010dn\u00fdm provozn\u00edm podm\u00ednk\u00e1m.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Hlavn\u00ed druhy tepeln\u00fdch zpracov\u00e1n\u00ed<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1.&nbsp;<strong>\u017d\u00edh\u00e1n\u00ed<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00da\u010del:<\/strong>\u00a0Zm\u011bk\u010den\u00ed materi\u00e1lu, odstran\u011bn\u00ed vnit\u0159n\u00edch pnut\u00ed, zlep\u0161en\u00ed tv\u00e1rnosti a obrobitelnosti.<\/li>\n\n\n\n<li><strong>Proces:<\/strong>\u00a0Materi\u00e1l se zah\u0159eje na ur\u010ditou teplotu (pod teplotu taven\u00ed), udr\u017euje se n\u011bkolik hodin a pak se pomalu ochlad\u00ed (\u010dasto v peci).<\/li>\n\n\n\n<li><strong>Pou\u017eit\u00ed:<\/strong>\u00a0P\u0159ed dal\u0161\u00edmi operacemi, jako je obr\u00e1b\u011bn\u00ed nebo tv\u00e1\u0159en\u00ed.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2.&nbsp;<strong>Kalen\u00ed<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00da\u010del:<\/strong>\u00a0Zv\u00fd\u0161en\u00ed tvrdosti a pevnosti.<\/li>\n\n\n\n<li><strong>Proces:<\/strong>\u00a0Materi\u00e1l se rychle zah\u0159eje nad tzv. kritickou teplotu, potom se prudce ochlad\u00ed (nap\u0159. ve vod\u011b, oleji nebo vzduchu).<\/li>\n\n\n\n<li><strong>V\u00fdsledek:<\/strong>\u00a0Tvrd\u00e1, ale k\u0159ehk\u00e1 struktura (martenzit).<\/li>\n\n\n\n<li><strong>Pou\u017eit\u00ed:<\/strong>\u00a0Sou\u010d\u00e1sti vy\u017eaduj\u00edc\u00ed vysokou odolnost v\u016f\u010di opot\u0159eben\u00ed, nap\u0159. ozuben\u00e1 kola, no\u017ee, n\u00e1stroje.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3.&nbsp;<strong>Popou\u0161t\u011bn\u00ed<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00da\u010del:<\/strong>\u00a0Zv\u00fd\u0161en\u00ed hou\u017eevnatosti a sn\u00ed\u017een\u00ed k\u0159ehkosti po kalen\u00ed.<\/li>\n\n\n\n<li><strong>Proces:<\/strong>\u00a0Kalen\u00fd materi\u00e1l se zah\u0159eje na ni\u017e\u0161\u00ed teplotu (100\u2013700 \u00b0C) a udr\u017euje se tam po stanovenou dobu, pot\u00e9 se ochlad\u00ed.<\/li>\n\n\n\n<li><strong>V\u00fdsledek:<\/strong>\u00a0Vyv\u00e1\u017een\u00e1 kombinace tvrdosti a hou\u017eevnatosti.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4.&nbsp;<strong>Normalizace<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00da\u010del:<\/strong>\u00a0Z\u00edsk\u00e1n\u00ed rovnom\u011brn\u00e9 a jemn\u00e9 mikrostruktury.<\/li>\n\n\n\n<li><strong>Proces:<\/strong>\u00a0Materi\u00e1l se zah\u0159eje na teplotu nad kritickou, udr\u017euje se a pak se ochlad\u00ed na vzduchu.<\/li>\n\n\n\n<li><strong>Pou\u017eit\u00ed:<\/strong>\u00a0Konstruk\u010dn\u00ed oceli p\u0159ed dal\u0161\u00edm zpracov\u00e1n\u00edm.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">5.&nbsp;<strong>Nitridace a cementace (povrchov\u00e9 kalen\u00ed)<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cementace:<\/strong>\u00a0Povrchov\u00e9 obohacen\u00ed uhl\u00edkem p\u0159i vysok\u00e9 teplot\u011b, n\u00e1sledn\u00e9 kalen\u00ed, pro zv\u00fd\u0161en\u00ed tvrdosti povrchu.<\/li>\n\n\n\n<li><strong>Nitridace:<\/strong>\u00a0Zav\u00e1d\u011bn\u00ed dus\u00edku do povrchu za ni\u017e\u0161\u00ed teploty, vznik tvrd\u00e9 vrstvy.<\/li>\n\n\n\n<li><strong>Pou\u017eit\u00ed:<\/strong>\u00a0D\u00edly s po\u017eadavkem na tvrd\u00fd povrch a hou\u017eevnat\u00e9 j\u00e1dro (nap\u0159. ozuben\u00e1 kola, h\u0159\u00eddele).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Vliv tepeln\u00e9ho zpracov\u00e1n\u00ed na vlastnosti kov\u016f<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Vlastnost<\/strong><\/th><th><strong>\u017d\u00edh\u00e1n\u00ed<\/strong><\/th><th><strong>Kalen\u00ed<\/strong><\/th><th><strong>Popou\u0161t\u011bn\u00ed<\/strong><\/th><th><strong>Normalizace<\/strong><\/th><th><strong>Povrchov\u00e9 zpracov\u00e1n\u00ed<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Tvrdost<\/td><td>Sn\u00ed\u017een\u00e1<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>St\u0159edn\u00ed<\/td><td>St\u0159edn\u00ed<\/td><td>Vysok\u00e1 na povrchu<\/td><\/tr><tr><td>Hou\u017eevnatost<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>N\u00edzk\u00e1<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>Vysok\u00e1 na j\u00e1d\u0159e<\/td><\/tr><tr><td>Pevnost<\/td><td>Sn\u00ed\u017een\u00e1<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>St\u0159edn\u00ed<\/td><td>St\u0159edn\u00ed<\/td><td>Zlep\u0161en\u00e1<\/td><\/tr><tr><td>Tv\u00e1rnost<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>Sn\u00ed\u017een\u00e1<\/td><td>St\u0159edn\u00ed<\/td><td>Zv\u00fd\u0161en\u00e1<\/td><td>Neovlivn\u011bn\u00e1 j\u00e1dro<\/td><\/tr><tr><td>Vnit\u0159n\u00ed pnut\u00ed<\/td><td>Odstran\u011bno<\/td><td>M\u016f\u017ee vzniknout<\/td><td>Sn\u00ed\u017eeno<\/td><td>Odstran\u011bno<\/td><td>Neovlivn\u011bno<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Praktick\u00e9 aplikace<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u00fdroba ozuben\u00fdch kol:<\/strong>\u00a0Cementace povrchu a kalen\u00ed pro zv\u00fd\u0161en\u00ed odolnosti proti opot\u0159eben\u00ed a \u00fanava.<\/li>\n\n\n\n<li><strong>N\u00e1stroje:<\/strong>\u00a0Kalen\u00ed a popou\u0161t\u011bn\u00ed pro dosa\u017een\u00ed tvrdosti a hou\u017eevnatosti.<\/li>\n\n\n\n<li><strong>Konstruk\u010dn\u00ed oceli:<\/strong>\u00a0Normalizace p\u0159ed obr\u00e1b\u011bn\u00edm a sva\u0159ov\u00e1n\u00edm pro rovnom\u011brnou strukturu.<\/li>\n\n\n\n<li><strong>Lopatky turb\u00edn, motorov\u00e9 d\u00edly:<\/strong>\u00a0Speci\u00e1ln\u00ed \u017e\u00edh\u00e1n\u00ed a kalen\u00ed s d\u016frazem na mikrostrukturu.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tepeln\u00e9 zpracov\u00e1n\u00ed je neodd\u011blitelnou sou\u010d\u00e1st\u00ed v\u00fdroby stroj\u00edrensk\u00fdch sou\u010d\u00e1st\u00ed a umo\u017e\u0148uje c\u00edlen\u011b ovlivnit vlastnosti kov\u016f. Spr\u00e1vn\u011b zvolen\u00fd re\u017eim tepeln\u00e9ho zpracov\u00e1n\u00ed prodlu\u017euje \u017eivotnost d\u00edl\u016f, zvy\u0161uje jejich odolnost v\u016f\u010di nam\u00e1h\u00e1n\u00ed a umo\u017e\u0148uje vyrobit komponenty s po\u017eadovanou p\u0159esnost\u00ed a kvalitou.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>\u00davod Tepeln\u00e9 zpracov\u00e1n\u00ed je soubor technologick\u00fdch proces\u016f, p\u0159i kter\u00fdch se materi\u00e1l (obvykle kov) zah\u0159\u00edv\u00e1, udr\u017euje na ur\u010dit\u00e9 teplot\u011b a n\u00e1sledn\u011b ochlazuje podle specifick\u00fdch re\u017eim\u016f. C\u00edlem je upravit mikrostrukturu materi\u00e1lu tak, aby z\u00edskal po\u017eadovan\u00e9 mechanick\u00e9 vlastnosti, jako jsou tvrdost, hou\u017eevnatost, pevnost nebo tv\u00e1rnost. Bez spr\u00e1vn\u00e9ho tepeln\u00e9ho zpracov\u00e1n\u00ed by strojn\u00ed d\u00edly nebyly schopn\u00e9 odol\u00e1vat n\u00e1ro\u010dn\u00fdm provozn\u00edm podm\u00ednk\u00e1m. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3973,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[179],"tags":[],"tmauthors":[],"class_list":["post-3972","post","type-post","status-publish","format-standard","has-post-thumbnail","category-technika"],"amp_enabled":false,"_links":{"self":[{"href":"https:\/\/ipocitac.cz\/index.php?rest_route=\/wp\/v2\/posts\/3972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ipocitac.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ipocitac.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3972"}],"version-history":[{"count":0,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=\/wp\/v2\/posts\/3972\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=\/wp\/v2\/media\/3973"}],"wp:attachment":[{"href":"https:\/\/ipocitac.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3972"},{"taxonomy":"tmauthors","embeddable":true,"href":"https:\/\/ipocitac.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftmauthors&post=3972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}