{"id":16216,"date":"2025-09-01T09:56:07","date_gmt":"2025-09-01T01:56:07","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=16216"},"modified":"2025-09-01T09:56:07","modified_gmt":"2025-09-01T01:56:07","slug":"jaky-je-bod-tani-nerezove-oceli","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/what-is-the-melting-point-of-stainless-steel\/","title":{"rendered":"Jak\u00fd je bod t\u00e1n\u00ed nerezov\u00e9 oceli?"},"content":{"rendered":"<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/auto_1-5.webp\" alt=\"Obr\u00e1zek automobilov\u00e9ho vytla\u010dovac\u00edho v\u00fdrobku od spole\u010dnosti SinoExtrud\"><figcaption>V\u00fdrobek pro automobilov\u00fd pr\u016fmysl od spole\u010dnosti SinoExtrud<\/figcaption><\/figure>\n<\/p>\n<p>Nerezov\u00e1 ocel vypad\u00e1 odoln\u011b - a tak\u00e9 je. Ale i ty nejpevn\u011bj\u0161\u00ed materi\u00e1ly maj\u00ed sv\u00e9 limity a u nerezov\u00e9 oceli je jedn\u00edm z nich teplo.<\/p>\n<p><strong>Teplota t\u00e1n\u00ed nerezov\u00e9 oceli se pohybuje od 1 375 \u00b0C do 1 530 \u00b0C (2 507 \u00b0F a\u017e 2 786 \u00b0F) v z\u00e1vislosti na jakosti a chemick\u00e9m slo\u017een\u00ed.<\/strong><\/p>\n<p>Nejedn\u00e1 se o jedno \u010d\u00edslo, ale o rozmez\u00ed. Pro\u010d? Proto\u017ee nerezov\u00e1 ocel nen\u00ed jen jeden kov - je to slitina. P\u0159\u00edtomnost niklu, chromu, molybdenu a dal\u0161\u00edch prvk\u016f m\u011bn\u00ed jej\u00ed chov\u00e1n\u00ed p\u0159i extr\u00e9mn\u00edch teplot\u00e1ch.<\/p>\n<p>Pokud pracujete ve v\u00fdrob\u011b, stavebnictv\u00ed, p\u0159i tv\u00e1\u0159en\u00ed kov\u016f nebo v prost\u0159ed\u00ed s vysok\u00fdmi teplotami, nen\u00ed znalost tohoto rozsahu taven\u00ed voliteln\u00e1 - je nezbytn\u00e1.<\/p>\n<h2>Co ovliv\u0148uje bod t\u00e1n\u00ed nerezov\u00e9 oceli?<\/h2>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/auto_2-5.webp\" alt=\"Vysoce v\u00fdkonn\u00fd automatick\u00fd extrud\u00e9r pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed\"><figcaption>Automatick\u00fd extrud\u00e9r 2.5 - za\u0159\u00edzen\u00ed pr\u016fmyslov\u00e9 t\u0159\u00eddy od spole\u010dnosti SinoExtrud<\/figcaption><\/figure>\n<\/p>\n<p>Kdy\u017e jsem se poprv\u00e9 za\u010dal zab\u00fdvat zpracov\u00e1n\u00edm nerezov\u00e9 oceli, domn\u00edval jsem se, \u017ee bod t\u00e1n\u00ed je pevn\u011b dan\u00e9 \u010d\u00edslo. Uk\u00e1zalo se, \u017ee je to klouzav\u00e1 stupnice - a d\u016fvody jsou docela zaj\u00edmav\u00e9.<\/p>\n<p><strong>Teplotu t\u00e1n\u00ed nerezov\u00e9 oceli ovliv\u0148uj\u00ed leguj\u00edc\u00ed prvky, struktura zrn, obsah uhl\u00edku, ne\u010distoty a krystalov\u00e1 struktura.<\/strong><\/p>\n<h3>1. Leguj\u00edc\u00ed prvky<\/h3>\n<p>Nejv\u011bt\u0161\u00ed vliv m\u00e1 chemie. Zde je n\u011bkolik kl\u00ed\u010dov\u00fdch hr\u00e1\u010d\u016f:<\/p>\n<ul>\n<li><strong>Nikl<\/strong>: Sni\u017euje bod t\u00e1n\u00ed.<\/li>\n<li><strong>Chrom<\/strong>: Zvy\u0161uje odolnost proti korozi a m\u00edrn\u011b zvy\u0161uje bod t\u00e1n\u00ed.<\/li>\n<li><strong>Molybden<\/strong>: Dod\u00e1v\u00e1 pevnost a zvy\u0161uje bod t\u00e1n\u00ed.<\/li>\n<li><strong>Uhl\u00edk<\/strong>: Mal\u00e9 mno\u017estv\u00ed m\u016f\u017ee zv\u00fd\u0161it pevnost, ale p\u0159\u00edli\u0161 velk\u00e9 mno\u017estv\u00ed m\u016f\u017ee sn\u00ed\u017eit bod t\u00e1n\u00ed.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Prvek<\/th>\n<th>Obecn\u00fd vliv na bod t\u00e1n\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nikl (Ni)<\/td>\n<td>Sni\u017euje<\/td>\n<\/tr>\n<tr>\n<td>Chrom (Cr)<\/td>\n<td>M\u00edrn\u011b zvy\u0161uje<\/td>\n<\/tr>\n<tr>\n<td>Molybden (Mo)<\/td>\n<td>Zvy\u0161uje<\/td>\n<\/tr>\n<tr>\n<td>Uhl\u00edk (C)<\/td>\n<td>Variabiln\u00ed (m\u016f\u017ee se zvy\u0161ovat nebo sni\u017eovat)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2. Mikrostruktura a hranice zrn<\/h3>\n<p>Men\u0161\u00ed zrna mohou zv\u00fd\u0161it po\u010det hranic zrn, co\u017e m\u00edrn\u011b sni\u017euje celkovou teplotu t\u00e1n\u00ed. Nejedn\u00e1 se o drastickou zm\u011bnu, ale v p\u0159esn\u00e9 v\u00fdrob\u011b se po\u010d\u00edt\u00e1 ka\u017ed\u00fd stupe\u0148.<\/p>\n<h3>3. Krystalov\u00e1 struktura<\/h3>\n<p>Existuj\u00ed t\u0159i hlavn\u00ed typy:<\/p>\n<ul>\n<li><strong>Austenitick\u00e9 (FCC)<\/strong>: Ni\u017e\u0161\u00ed teploty t\u00e1n\u00ed, v\u011bt\u0161\u00ed ta\u017enost.<\/li>\n<li><strong>Feritick\u00e9 (BCC)<\/strong>: Vy\u0161\u0161\u00ed bod t\u00e1n\u00ed, m\u00e9n\u011b tv\u00e1rn\u00fd.<\/li>\n<li><strong>Martenzitick\u00e9 (BCT)<\/strong>: Tvrd\u0161\u00ed, s r\u016fzn\u00fdmi body t\u00e1n\u00ed.<\/li>\n<\/ul>\n<p><div class=\"claim claim-true\" style=\"background-color: #e6f3e6; border-color: #e6f3e6; color: #2e8b57;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m9 12 2 2 4-4\"\/><\/svg> <b>Leguj\u00edc\u00ed prvky, jako je nikl a uhl\u00edk, mohou ovlivnit bod t\u00e1n\u00ed nerezov\u00e9 oceli.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>Nikl sni\u017euje teplotu t\u00e1n\u00ed, zat\u00edmco uhl\u00edk ji m\u016f\u017ee zvy\u0161ovat nebo sni\u017eovat v z\u00e1vislosti na koncentraci.<\/p><\/div><br \/>\n<div class=\"claim claim-false\" style=\"background-color: #f8e6e6; border-color: #f8e6e6; color: #dc143c;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m14.5 9.5-5 5\"\/><path d=\"m9.5 9.5 5 5\"\/><\/svg> <b>Nerezov\u00e1 ocel se v\u017edy tav\u00ed p\u0159i pevn\u00e9 teplot\u011b bez ohledu na jej\u00ed slo\u017een\u00ed.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>Teplota t\u00e1n\u00ed se m\u011bn\u00ed v z\u00e1vislosti na t\u0159\u00edd\u011b a leguj\u00edc\u00edch prvc\u00edch.<\/p><\/div><\/p>\n<h2>Jak se m\u011b\u0159\u00ed teplota t\u00e1n\u00ed nerezov\u00e9 oceli?<\/h2>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/auto_3-5.webp\" alt=\"Automobilov\u00fd d\u00edl od spole\u010dnosti SinoExtrud\"><figcaption>Vysoce kvalitn\u00ed automobilov\u00fd d\u00edl<\/figcaption><\/figure>\n<\/p>\n<p>Nerezovou ocel nem\u016f\u017eete jen tak hodit do ohn\u011b a odhadnout, kdy se roztav\u00ed. V pr\u016fmyslov\u00e9m a laboratorn\u00edm prost\u0159ed\u00ed pou\u017e\u00edv\u00e1me kontrolovan\u00e9 a opakovateln\u00e9 metody.<\/p>\n<p><strong>Teplota t\u00e1n\u00ed nerezov\u00e9 oceli se m\u011b\u0159\u00ed pomoc\u00ed metod termick\u00e9 anal\u00fdzy, jako je diferenci\u00e1ln\u00ed termick\u00e1 anal\u00fdza (DTA), diferenci\u00e1ln\u00ed skenovac\u00ed kalorimetrie (DSC) a termomechanick\u00e1 anal\u00fdza (TMA).<\/strong><\/p>\n<h3>Pou\u017eit\u00e9 metody:<\/h3>\n<h4>1. <strong>Diferenci\u00e1ln\u00ed skenovac\u00ed kalorimetrie (DSC)<\/strong><\/h4>\n<ul>\n<li>M\u011b\u0159\u00ed tok tepla do vzorku nebo ze vzorku.<\/li>\n<li>Ur\u010duje p\u0159esn\u00e9 teplotn\u00ed rozmez\u00ed, kde za\u010d\u00edn\u00e1 a kon\u010d\u00ed t\u00e1n\u00ed.<\/li>\n<\/ul>\n<h4>2. <strong>Termomechanick\u00e1 anal\u00fdza (TMA)<\/strong><\/h4>\n<ul>\n<li>Sleduje zm\u011bny rozm\u011br\u016f v z\u00e1vislosti na teplot\u011b.<\/li>\n<li>Pom\u00e1h\u00e1 odhalit body m\u011bknut\u00ed nebo deformace p\u0159ed taven\u00edm.<\/li>\n<\/ul>\n<h4>3. <strong>Pyrometry<\/strong><\/h4>\n<ul>\n<li>Pou\u017e\u00edv\u00e1 se ve vysokoteplotn\u00edch pec\u00edch.<\/li>\n<li>Bezkontaktn\u00ed infra\u010derven\u00e1 za\u0159\u00edzen\u00ed, kter\u00e1 sleduj\u00ed teplotu povrchu p\u0159i jeho zah\u0159\u00edv\u00e1n\u00ed.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Metoda<\/th>\n<th>Popis<\/th>\n<th>P\u0159esnost<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DSC<\/td>\n<td>M\u011b\u0159en\u00ed tepeln\u00e9ho toku<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>TMA<\/td>\n<td>Sledov\u00e1n\u00ed zm\u011bn rozm\u011br\u016f<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Pyrometr<\/td>\n<td>Optick\u00e1 povrchov\u00e1 teplota<\/td>\n<td>Vhodn\u00e9 pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V re\u00e1ln\u00fdch aplikac\u00edch, jako je sva\u0159ov\u00e1n\u00ed nebo odl\u00e9v\u00e1n\u00ed, vyu\u017e\u00edvaj\u00ed in\u017een\u00fd\u0159i tato laboratorn\u00ed m\u011b\u0159en\u00ed ke kontrole rychlosti oh\u0159evu a chlazen\u00ed, zejm\u00e9na u specializovan\u00fdch nerezov\u00fdch t\u0159\u00edd.<\/p>\n<p><div class=\"claim claim-true\" style=\"background-color: #e6f3e6; border-color: #e6f3e6; color: #2e8b57;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m9 12 2 2 4-4\"\/><\/svg> <b>Diferenci\u00e1ln\u00ed skenovac\u00ed kalorimetrie je metoda pou\u017e\u00edvan\u00e1 k m\u011b\u0159en\u00ed teploty t\u00e1n\u00ed nerezov\u00e9 oceli.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>DSC m\u011b\u0159\u00ed tepeln\u00fd tok a zji\u0161\u0165uje po\u010d\u00e1tek a ukon\u010den\u00ed taven\u00ed.<\/p><\/div><br \/>\n<div class=\"claim claim-false\" style=\"background-color: #f8e6e6; border-color: #f8e6e6; color: #dc143c;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m14.5 9.5-5 5\"\/><path d=\"m9.5 9.5 5 5\"\/><\/svg> <b>Teplotu t\u00e1n\u00ed nerezov\u00e9 oceli lze zm\u011b\u0159it pouhou vizu\u00e1ln\u00ed kontrolou b\u011bhem zah\u0159\u00edv\u00e1n\u00ed.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>Vizu\u00e1ln\u00ed kontrola je nespolehliv\u00e1 kv\u016fli reflexn\u00edm povrch\u016fm a postupn\u00e9 zm\u011bn\u011b f\u00e1ze.<\/p><\/div><\/p>\n<h2>Pro\u010d m\u00e1 t\u0159\u00edda vliv na teplotu t\u00e1n\u00ed?<\/h2>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/auto_4-4.webp\" alt=\"Automatick\u00fd vytla\u010dovac\u00ed stroj pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed\"><figcaption>Vysoce \u00fa\u010dinn\u00fd automatick\u00fd vytla\u010dovac\u00ed stroj<\/figcaption><\/figure>\n<\/p>\n<p>Kdy\u017e se m\u011b n\u011bkdo zept\u00e1, pro\u010d se r\u016fzn\u00e9 druhy rozpou\u0161t\u011bj\u00ed p\u0159i r\u016fzn\u00fdch teplot\u00e1ch, \u0159eknu mu, \u017ee je to v receptu\u0159e. Ka\u017ed\u00e1 t\u0159\u00edda je jedine\u010dnou sm\u011bs\u00ed kov\u016f.<\/p>\n<p><strong>T\u0159\u00edda ovliv\u0148uje teplotu taven\u00ed, proto\u017ee r\u016fzn\u00e9 typy nerezov\u00e9 oceli obsahuj\u00ed r\u016fzn\u00e9 pod\u00edly prvk\u016f, jako je nikl, chrom a uhl\u00edk.<\/strong><\/p>\n<p>Pod\u00edvejme se na n\u011bkter\u00e9 b\u011b\u017en\u00e9 zn\u00e1mky:<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u0159\u00edda nerezov\u00e9 oceli<\/th>\n<th>Rozsah t\u00e1n\u00ed (\u00b0C)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>304<\/td>\n<td>1,400-1,450<\/td>\n<\/tr>\n<tr>\n<td>316<\/td>\n<td>1,375-1,400<\/td>\n<\/tr>\n<tr>\n<td>430 (feritick\u00e1)<\/td>\n<td>1,425-1,510<\/td>\n<\/tr>\n<tr>\n<td>410 (martenzitick\u00fd)<\/td>\n<td>1,480-1,530<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Co se m\u011bn\u00ed mezi ro\u010dn\u00edky?<\/h3>\n<h4>- <strong>304 vs. 316<\/strong><\/h4>\n<p>316 obsahuje v\u00edce niklu a molybdenu, kter\u00e9 m\u00edrn\u011b sni\u017euj\u00ed bod t\u00e1n\u00ed.<\/p>\n<h4>- <strong>Feritick\u00e9 t\u0159\u00eddy (nap\u0159. 430)<\/strong><\/h4>\n<p>Ty obsahuj\u00ed m\u00e9n\u011b niklu a v\u00edce chromu, co\u017e zvy\u0161uje bod t\u00e1n\u00ed.<\/p>\n<h4>- <strong>Martenzitick\u00e9 t\u0159\u00eddy (nap\u0159. 410, 420)<\/strong><\/h4>\n<p>Vy\u0161\u0161\u00ed obsah uhl\u00edku zvy\u0161uje tvrdost, ale m\u016f\u017ee ovlivnit rozsah taven\u00ed, kter\u00fd je o n\u011bco vy\u0161\u0161\u00ed a prom\u011bnliv\u011bj\u0161\u00ed.<\/p>\n<p>To m\u00e1 z\u00e1sadn\u00ed v\u00fdznam v pr\u016fmyslov\u00fdch odv\u011btv\u00edch, jako je letectv\u00ed, potravin\u00e1\u0159stv\u00ed a energetika, kde pou\u017eit\u00ed nespr\u00e1vn\u00e9 t\u0159\u00eddy m\u016f\u017ee v\u00e9st k p\u0159ed\u010dasn\u00e9mu selh\u00e1n\u00ed p\u0159i vysok\u00fdch teplot\u00e1ch.<\/p>\n<p><div class=\"claim claim-true\" style=\"background-color: #e6f3e6; border-color: #e6f3e6; color: #2e8b57;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m9 12 2 2 4-4\"\/><\/svg> <b>Nerezov\u00e1 ocel 304 se tav\u00ed p\u0159i vy\u0161\u0161\u00edm teplotn\u00edm rozsahu ne\u017e nerezov\u00e1 ocel 316.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>304 obsahuje o n\u011bco m\u00e9n\u011b niklu a molybdenu, co\u017e obvykle sni\u017euje bod t\u00e1n\u00ed u oceli 316.<\/p><\/div><br \/>\n<div class=\"claim claim-false\" style=\"background-color: #f8e6e6; border-color: #f8e6e6; color: #dc143c;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m14.5 9.5-5 5\"\/><path d=\"m9.5 9.5 5 5\"\/><\/svg> <b>V\u0161echny t\u0159\u00eddy nerezov\u00e9 oceli maj\u00ed stejnou teplotu t\u00e1n\u00ed.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>Ka\u017ed\u00e1 t\u0159\u00edda m\u00e1 jedine\u010dn\u00e9 slo\u017een\u00ed slitiny, kter\u00e9 ovliv\u0148uje jej\u00ed rozsah taven\u00ed.<\/p><\/div><\/p>\n<h2>M\u016f\u017ee slo\u017een\u00ed nerezov\u00e9 oceli zm\u011bnit bod t\u00e1n\u00ed?<\/h2>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/auto_5-3.webp\" alt=\"Automatick\u00e1 vytla\u010dovac\u00ed za\u0159\u00edzen\u00ed - SinoExtrud\"><figcaption>Automatick\u00e9 vytla\u010dovac\u00ed za\u0159\u00edzen\u00ed<\/figcaption><\/figure>\n<\/p>\n<p>Tuto ot\u00e1zku sl\u00fdch\u00e1m od klient\u016f, kte\u0159\u00ed vyv\u00edjej\u00ed slitiny na zak\u00e1zku. \"Kdy\u017e uprav\u00edme vzorec, bude se tavit jinak?\" Kr\u00e1tk\u00e1 odpov\u011b\u010f? Ano, rozhodn\u011b.<\/p>\n<p><strong>Ano, zm\u011bna slo\u017een\u00ed nerezov\u00e9 oceli m\u011bn\u00ed jej\u00ed bod t\u00e1n\u00ed. I mal\u00e9 \u00fapravy leguj\u00edc\u00edch prvk\u016f mohou posunout rozsah t\u00e1n\u00ed.<\/strong><\/p>\n<h3>B\u011b\u017en\u00e9 \u00fapravy slo\u017een\u00ed:<\/h3>\n<h4>1. <strong>P\u0159idat dal\u0161\u00ed nikl<\/strong><\/h4>\n<ul>\n<li>Zlep\u0161uje ta\u017enost.<\/li>\n<li>Sni\u017euje bod t\u00e1n\u00ed.<\/li>\n<\/ul>\n<h4>2. <strong>Zv\u00fd\u0161en\u00ed obsahu chromu<\/strong><\/h4>\n<ul>\n<li>Zvy\u0161uje odolnost proti korozi.<\/li>\n<li>M\u00edrn\u011b zvy\u0161uje bod t\u00e1n\u00ed.<\/li>\n<\/ul>\n<h4>3. <strong>Zaveden\u00ed molybdenu<\/strong><\/h4>\n<ul>\n<li>Zlep\u0161uje tepelnou odolnost a pevnost.<\/li>\n<li>Zvy\u0161uje bod t\u00e1n\u00ed.<\/li>\n<\/ul>\n<h4>4. <strong>\u00daprava uhl\u00edku<\/strong><\/h4>\n<ul>\n<li>Zvy\u0161uje tvrdost, ale nadbytek uhl\u00edku m\u016f\u017ee zp\u016fsobit k\u0159ehkost a ni\u017e\u0161\u00ed teplotu t\u00e1n\u00ed, pokud nen\u00ed stabilizov\u00e1n.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Zm\u011bna slo\u017een\u00ed<\/th>\n<th>Vliv na bod t\u00e1n\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>+ Nikl<\/td>\n<td>Sni\u017euje<\/td>\n<\/tr>\n<tr>\n<td>+ Chrom<\/td>\n<td>M\u00edrn\u011b se zvy\u0161uje<\/td>\n<\/tr>\n<tr>\n<td>+ Molybden<\/td>\n<td>Zvy\u0161uje<\/td>\n<\/tr>\n<tr>\n<td>+ Uhl\u00edk (st\u0159edn\u011b t\u011b\u017ek\u00fd)<\/td>\n<td>Prom\u011bnliv\u00e1, obvykle se zvy\u0161uje<\/td>\n<\/tr>\n<tr>\n<td>+ titan \/ niob<\/td>\n<td>Stabilizuje karbidy, zvy\u0161uje<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Dokonce i stopov\u00e9 prvky, jako je s\u00edra nebo fosfor, mohou ovlivnit chov\u00e1n\u00ed p\u0159i taven\u00ed. Proto v\u00fdroba nerezov\u00e9 oceli v\u017edy zahrnuje p\u0159\u00edsnou kontrolu kvality a chemickou certifikaci.<\/p>\n<p><div class=\"claim claim-true\" style=\"background-color: #e6f3e6; border-color: #e6f3e6; color: #2e8b57;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m9 12 2 2 4-4\"\/><\/svg> <b>\u00daprava obsahu niklu v nerezov\u00e9 oceli ovliv\u0148uje jej\u00ed tavic\u00ed rozsah.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>Obsah niklu p\u0159\u00edmo ovliv\u0148uje chov\u00e1n\u00ed p\u0159i taven\u00ed t\u00edm, \u017ee sni\u017euje bod t\u00e1n\u00ed.<\/p><\/div><br \/>\n<div class=\"claim claim-false\" style=\"background-color: #f8e6e6; border-color: #f8e6e6; color: #dc143c;\"><p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" fill=\"transparent\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z\"\/><path d=\"m14.5 9.5-5 5\"\/><path d=\"m9.5 9.5 5 5\"\/><\/svg> <b>Slo\u017een\u00ed nerezov\u00e9 oceli nem\u00e1 \u017e\u00e1dn\u00fd vliv na jej\u00ed chov\u00e1n\u00ed p\u0159i taven\u00ed.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>Zm\u011bny ve slo\u017een\u00ed maj\u00ed p\u0159\u00edm\u00fd vliv na teplotu t\u00e1n\u00ed a teplotn\u00ed vlastnosti.<\/p><\/div><\/p>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Bod t\u00e1n\u00ed nen\u00ed jen technick\u00e1 specifikace - je to rozhoduj\u00edc\u00ed faktor pro v\u00fdkonnost materi\u00e1lu. U nerezov\u00e9 oceli z\u00e1vis\u00ed rozsah teploty t\u00e1n\u00ed v\u00fdhradn\u011b na t\u0159\u00edd\u011b a slo\u017een\u00ed. A\u0165 u\u017e vyb\u00edr\u00e1te t\u0159\u00eddu pro pou\u017eit\u00ed p\u0159i vysok\u00fdch teplot\u00e1ch, odl\u00e9v\u00e1n\u00ed nebo sva\u0159ov\u00e1n\u00ed, porozum\u011bn\u00ed tomuto chov\u00e1n\u00ed p\u0159i t\u00e1n\u00ed v\u00e1m pom\u016f\u017ee vyhnout se n\u00e1kladn\u00fdm chyb\u00e1m a zajistit trvanlivou konstrukci.<\/p>","protected":false},"excerpt":{"rendered":"<p>Automotive Extrusion Product by SinoExtrud Stainless steel looks tough\u2014and it is. But even the strongest materials have their limits, and for stainless steel, one of those limits is heat. The melting point of stainless steel ranges from 1,375\u202f\u00b0C to 1,530\u202f\u00b0C (2,507\u202f\u00b0F to 2,786\u202f\u00b0F), depending on the grade and its chemical composition. That\u2019s not a single [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":16208,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_analysis_target_kw":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-16216","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/16216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=16216"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/16216\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/16208"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=16216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=16216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=16216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}