{"id":10149,"date":"2025-07-14T01:48:17","date_gmt":"2025-07-14T01:48:17","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=10149"},"modified":"2025-07-14T01:48:58","modified_gmt":"2025-07-14T01:48:58","slug":"jaka-je-teplota-zihani-hliniku-6061","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/what-is-the-aluminum-annealing-temperature-for-aluminium-6061\/","title":{"rendered":"Jak\u00e1 je teplota \u017e\u00edh\u00e1n\u00ed hlin\u00edku 6061?"},"content":{"rendered":"<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/Industrial-Aluminum-Profiles-1.webp\" alt=\"hlin\u00edkov\u00e9 vytla\u010dovac\u00ed profily vystaven\u00e9 d\u016fsledn\u00e9mu \u017e\u00edh\u00e1n\u00ed.\"><figcaption>Stabiln\u00ed mikrostruktura pro rovnom\u011brn\u00e9 mechanick\u00e9 vlastnosti<\/figcaption><\/figure>\n<p>V\u011bt\u0161ina konstrukt\u00e9r\u016f m\u00e1 probl\u00e9m s nastaven\u00edm spr\u00e1vn\u00fdch podm\u00ednek \u017e\u00edh\u00e1n\u00ed hlin\u00edku 6061. Nespr\u00e1vn\u00e9 teploty vedou k nestejn\u00fdm mechanick\u00fdm vlastnostem, prask\u00e1n\u00ed nebo pl\u00fdtv\u00e1n\u00ed materi\u00e1lem.<\/p>\n<p><strong>Ide\u00e1ln\u00ed teplota \u017e\u00edh\u00e1n\u00ed pro hlin\u00edk 6061 je p\u0159ibli\u017en\u011b 415 \u00b0C (775 \u00b0F), udr\u017euje se 2-3 hodiny a n\u00e1sleduje \u0159\u00edzen\u00e9 chlazen\u00ed v peci.<\/strong><\/p>\n<p>Mnoz\u00ed si neuv\u011bdomuj\u00ed, jak z\u00e1sadn\u00ed je doba nam\u00e1\u010den\u00ed a rychlost chlazen\u00ed. V tomto \u010dl\u00e1nku vysv\u011btl\u00edm jednotliv\u00e9 prom\u011bnn\u00e9, abych v\u00e1m pomohl vyhnout se pokus\u016fm a omyl\u016fm.<\/p>\n<h2>V jak\u00e9m teplotn\u00edm rozsahu se dos\u00e1hne \u00fapln\u00e9ho \u017e\u00edh\u00e1n\u00ed slitiny 6061?<\/h2>\n<p>V\u011bt\u0161ina v\u00fdrobc\u016f se zab\u00fdv\u00e1 matouc\u00edmi doporu\u010den\u00edmi pro tepeln\u00e9 zpracov\u00e1n\u00ed. N\u011bkter\u00e9 zdroje uv\u00e1d\u011bj\u00ed \u0161irok\u00e1 teplotn\u00ed rozp\u011bt\u00ed nebo chyb\u00ed konkr\u00e9tn\u00ed doba trv\u00e1n\u00ed.<\/p>\n<p><strong>Pro \u00fapln\u00e9 \u017e\u00edh\u00e1n\u00ed hlin\u00edku 6061 jej zah\u0159ejte na teplotu p\u0159ibli\u017en\u011b 415 \u00b0C (775 \u00b0F). Tato teplota umo\u017e\u0148uje rekrystalizaci, ani\u017e by se p\u0159ibl\u00ed\u017eila bodu t\u00e1n\u00ed.<\/strong><\/p>\n<p>Rekrystalizace za\u010d\u00edn\u00e1 p\u0159i zv\u00fd\u0161en\u00ed teploty nad 260 \u00b0C (500 \u00b0F), ale \u00fapln\u00e9 \u017e\u00edh\u00e1n\u00ed vy\u017eaduje vy\u0161\u0161\u00ed a st\u00e1lou teplotu. C\u00edlem je uvolnit vnit\u0159n\u00ed nap\u011bt\u00ed a obnovit mikrostrukturu kovu. P\u0159i teplot\u011b 775 \u00b0C se materi\u00e1l st\u00e1v\u00e1 dostate\u010dn\u011b m\u011bkk\u00fdm pro hlubok\u00e9 tv\u00e1\u0159en\u00ed nebo dal\u0161\u00ed obr\u00e1b\u011bn\u00ed.<\/p>\n<h3>Porozum\u011bn\u00ed podm\u00ednk\u00e1m \u017e\u00edh\u00e1n\u00ed<\/h3>\n<p>6061 je sr\u00e1\u017ekov\u011b kaliteln\u00e1 hlin\u00edkov\u00e1 slitina, co\u017e znamen\u00e1, \u017ee jej\u00ed tvrdost z\u00e1vis\u00ed na pr\u016fb\u011bhu tepeln\u00e9ho zpracov\u00e1n\u00ed. \u00dapln\u00e9 \u017e\u00edh\u00e1n\u00ed odstran\u00ed v\u0161echny p\u0159edchoz\u00ed kalic\u00ed \u00fa\u010dinky. Vznikne tak m\u011bkk\u00fd, tv\u00e1rn\u00fd z\u00e1klad, tzv. stav \"O\".<\/p>\n<p>Zde je rozpis teplotn\u00edch rozsah\u016f \u017e\u00edh\u00e1n\u00ed a o\u010dek\u00e1van\u00fdch v\u00fdsledk\u016f:<\/p>\n<table>\n<thead>\n<tr>\n<th>Teplota (\u00b0F)<\/th>\n<th>\u00da\u010dinek na 6061<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>500-600\u00b0F<\/td>\n<td>\u010c\u00e1ste\u010dn\u00e9 zm\u011bk\u010den\u00ed, za\u010d\u00e1tek obnovy<\/td>\n<\/tr>\n<tr>\n<td>650-725\u00b0F<\/td>\n<td>Za\u010d\u00edn\u00e1 rekrystalizace<\/td>\n<\/tr>\n<tr>\n<td>775 \u00b0F (415 \u00b0C)<\/td>\n<td>\u00dapln\u00e9 \u017e\u00edh\u00e1n\u00ed, rovnoos\u00e1 zrna<\/td>\n<\/tr>\n<tr>\n<td>&gt;800\u00b0F<\/td>\n<td>Riziko st\u00e1rnut\u00ed, ztr\u00e1ta tvaru<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>P\u0159i teplot\u011b vy\u0161\u0161\u00ed ne\u017e 800 \u00b0C hroz\u00ed nebezpe\u010d\u00ed hrubnut\u00ed zrna, deformace a po\u0161kozen\u00ed mechanick\u00e9ho profilu. Proto je nutn\u00e9 se p\u0159i \u017e\u00edh\u00e1n\u00ed vyhnout p\u0159eh\u0159\u00e1t\u00ed.<\/p>\n<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>Hlin\u00edk 6061 dos\u00e1hne pln\u00e9ho \u017e\u00edh\u00e1n\u00ed p\u0159i teplot\u011b 415 \u00b0C po dobu 2-3 hodin.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>Tento stav umo\u017e\u0148uje \u00faplnou rekrystalizaci bez po\u0161kozen\u00ed slitiny.<\/p><\/div>\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>\u017d\u00edh\u00e1n\u00ed 6061 p\u0159i teplot\u011b 500 \u00b0F je dostate\u010dn\u00e9 pro \u00fapln\u00e9 zm\u011bk\u010den\u00ed.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>500 \u00b0C pouze zah\u00e1j\u00ed regeneraci, ale nedokon\u010d\u00ed rekrystalizaci.<\/p><\/div>\n<h2>Jak \u017e\u00edh\u00e1n\u00ed ovliv\u0148uje tvrdost a mikrostrukturu materi\u00e1lu 6061?<\/h2>\n<p>Dalo by se o\u010dek\u00e1vat, \u017ee \u017e\u00edh\u00e1n\u00edm hlin\u00edk pouze zm\u011bkne. Ale d\u011bl\u00e1 toho mnohem v\u00edc. M\u011bn\u00ed samotnou strukturu kovu.<\/p>\n<p><strong>\u017d\u00edh\u00e1n\u00edm se v\u00fdrazn\u011b sn\u00ed\u017e\u00ed tvrdost a nam\u00e1han\u00e1 zrna se nahrad\u00ed jemn\u00fdmi, rovnom\u011brn\u011b uspo\u0159\u00e1dan\u00fdmi, \u010d\u00edm\u017e se slitina stane tv\u00e1rn\u011bj\u0161\u00ed a l\u00e9pe zpracovateln\u00e1.<\/strong><\/p>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/Aluminum-Extrusion-Profile-For-Clean-Room.webp\" alt=\"detailn\u00ed z\u00e1b\u011br na m\u011bkk\u00fd \u017e\u00edhan\u00fd hlin\u00edkov\u00fd profil s rovnom\u011brn\u00fdmi zrny\"><figcaption>Rafinovan\u00e1 struktura zrn po \u00fapln\u00e9m \u017e\u00edh\u00e1n\u00ed<\/figcaption><\/figure>\n<\/p>\n<p>P\u0159i tv\u00e1\u0159en\u00ed nebo vytla\u010dov\u00e1n\u00ed se u 6061 vytv\u00e1\u0159ej\u00ed prot\u00e1hl\u00e1 zrna a vysok\u00e1 hustota dislokac\u00ed. Toto vnit\u0159n\u00ed nap\u011bt\u00ed je jako neviditeln\u00e9 po\u0161kozen\u00ed. \u017d\u00edh\u00e1n\u00ed ho zacel\u00ed. Atomy se reorganizuj\u00ed do nov\u00e9 struktury bez nap\u011bt\u00ed.<\/p>\n<h3>Zm\u011bny mikrostruktury<\/h3>\n<p>Se zvy\u0161uj\u00edc\u00ed se teplotou doch\u00e1z\u00ed k n\u00e1sleduj\u00edc\u00edm zm\u011bn\u00e1m:<\/p>\n<ol>\n<li><strong>F\u00e1ze zotaven\u00ed (250-350 \u00b0C)<\/strong>: Hustota dislokac\u00ed se sni\u017euje. Doch\u00e1z\u00ed k m\u00edrn\u00e9mu zm\u011bk\u010den\u00ed.<\/li>\n<li><strong>Rekrystalizace (350-415 \u00b0C)<\/strong>: Vznikaj\u00ed nov\u00e1 zrna. Kov je mnohem m\u011bk\u010d\u00ed.<\/li>\n<li><strong>R\u016fst zrn (&gt;415 \u00b0C)<\/strong>: P\u0159i p\u0159\u00edli\u0161 dlouh\u00e9m skladov\u00e1n\u00ed se zrna zv\u011bt\u0161uj\u00ed a sni\u017euj\u00ed hou\u017eevnatost.<\/li>\n<\/ol>\n<p>Zde je souhrnn\u00e1 tabulka zm\u011bn b\u011bhem \u017e\u00edh\u00e1n\u00ed:<\/p>\n<table>\n<thead>\n<tr>\n<th>Majetek<\/th>\n<th>P\u0159ed \u017e\u00edh\u00e1n\u00edm<\/th>\n<th>Po \u017e\u00edh\u00e1n\u00ed (775\u00b0F)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Struktura zrna<\/td>\n<td>Podlouhl\u00fd, napjat\u00fd<\/td>\n<td>Fine, equiaxed<\/td>\n<\/tr>\n<tr>\n<td>Tvrdost<\/td>\n<td>~95 Brinell<\/td>\n<td>~30 Brinell<\/td>\n<\/tr>\n<tr>\n<td>Ta\u017enost<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Zbytkov\u00e9 nap\u011bt\u00ed<\/td>\n<td>Vysok\u00e1<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Tyto zm\u011bny jsou v\u00fdhodn\u00e9 p\u0159ed hlubok\u00fdm tv\u00e1\u0159en\u00edm nebo CNC obr\u00e1b\u011bn\u00edm. Pokud v\u0161ak pl\u00e1nujete slitinu znovu tepeln\u011b zpracovat (nap\u0159. na T6), vyvarujte se nadm\u011brn\u00e9ho r\u016fstu zrn b\u011bhem \u017e\u00edh\u00e1n\u00ed.<\/p>\n<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>\u017d\u00edh\u00e1n\u00ed 6061 m\u011bn\u00ed strukturu zrn na jemn\u00e1, rovnom\u011brn\u00e1 zrna a sni\u017euje tvrdost.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>To je \u00fa\u010del \u00fapln\u00e9ho \u017e\u00edh\u00e1n\u00ed a d\u016fvod, pro\u010d se prov\u00e1d\u00ed p\u0159ed tvarov\u00e1n\u00edm.<\/p><\/div>\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>\u017d\u00edh\u00e1n\u00edm se 6061 st\u00e1v\u00e1 tvrd\u0161\u00ed a m\u00e9n\u011b tv\u00e1rnou.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>D\u011bl\u00e1 prav\u00fd opak - zm\u011bk\u010duje kov a zvy\u0161uje jeho tv\u00e1\u0159itelnost.<\/p><\/div>\n<h2>Jak\u00e1 je optim\u00e1ln\u00ed doba nam\u00e1\u010den\u00ed p\u0159i teplot\u011b \u017e\u00edh\u00e1n\u00ed?<\/h2>\n<p>Mnoho obchod\u016f pou\u017e\u00edv\u00e1 k ur\u010den\u00ed doby nam\u00e1\u010den\u00ed metodu pokusu a omylu. Nekonzistentn\u00ed v\u00fdsledky v\u0161ak vedou ke \u0161patn\u00e9 kvalit\u011b v\u00fdrobk\u016f a pl\u00fdtv\u00e1n\u00ed energi\u00ed.<\/p>\n<p><strong>Pro \u00fapln\u00e9 \u017e\u00edh\u00e1n\u00ed hlin\u00edku 6061 namo\u010dte slitinu p\u0159i 415 \u00b0C (775 \u00b0F) na 2-3 hodiny, abyste zajistili \u00faplnou rekrystalizaci.<\/strong><\/p>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/Aluminum-Extrusion-Bathroom-Mirror-Cabinet-Aluminum-Profile.webp\" alt=\"hlin\u00edkov\u00fd d\u00edl proch\u00e1zej\u00edc\u00ed \u0159\u00edzen\u00fdm nam\u00e1\u010den\u00edm v peci\"><figcaption>P\u0159esn\u00e9 nam\u00e1\u010den\u00ed zaji\u0161\u0165uje \u00faplnou rekrystalizaci<\/figcaption><\/figure>\n<\/p>\n<p>Doba nam\u00e1\u010den\u00ed je doba, po kterou kov z\u016fst\u00e1v\u00e1 na c\u00edlov\u00e9 teplot\u011b - nikoli doba, po kterou je pec zapnut\u00e1. Za\u010d\u00edn\u00e1, kdy\u017e j\u00e1dro kovu dos\u00e1hne teploty 775 \u00b0C. V\u011bt\u0161\u00ed \u00faseky pot\u0159ebuj\u00ed v\u00edce \u010dasu na vnit\u0159n\u00ed vyrovn\u00e1n\u00ed.<\/p>\n<h3>\u010cas v z\u00e1vislosti na tlou\u0161\u0165ce<\/h3>\n<p>Obecn\u011b plat\u00ed, \u017ee doba nam\u00e1\u010den\u00ed se prodlu\u017euje s tlou\u0161\u0165kou kovu:<\/p>\n<table>\n<thead>\n<tr>\n<th>Tlou\u0161\u0165ka (palce)<\/th>\n<th>Doporu\u010den\u00e1 doba nam\u00e1\u010den\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u2264 1 palec<\/td>\n<td>2 hodiny<\/td>\n<\/tr>\n<tr>\n<td>1-2 palce<\/td>\n<td>2,5 hodiny<\/td>\n<\/tr>\n<tr>\n<td>&gt;2 palce<\/td>\n<td>3 hodiny nebo v\u00edce<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Tento pomal\u00fd proces zah\u0159\u00edv\u00e1n\u00ed tak\u00e9 pom\u00e1h\u00e1 zabr\u00e1nit deformaci nebo prask\u00e1n\u00ed b\u011bhem \u017e\u00edh\u00e1n\u00ed. Tenk\u00e9 plechy mohou dos\u00e1hnout c\u00edlov\u00e9 teploty rychle, ale p\u0159edvalky nebo ty\u010de pot\u0159ebuj\u00ed v\u00edce trp\u011blivosti.<\/p>\n<p>Krat\u0161\u00ed doba (1 hodina nebo m\u00e9n\u011b) m\u016f\u017ee pouze iniciovat zotaven\u00ed, nikoli \u00fapln\u00e9 \u017e\u00edh\u00e1n\u00ed. To je u\u017eite\u010dn\u00e9 pouze pro zm\u00edrn\u011bn\u00ed nap\u011bt\u00ed, nikoli pro \u00fapln\u00e9 obnoven\u00ed vlastnost\u00ed.<\/p>\n<p>Pokud je spot\u0159eba energie problematick\u00e1, zva\u017ete d\u00e1vkov\u00e9 zpracov\u00e1n\u00ed, abyste zv\u00fd\u0161ili \u00fa\u010dinnost. V\u017edy v\u0161ak ov\u011b\u0159te dobu nam\u00e1\u010den\u00ed na z\u00e1klad\u011b velikosti a rovnom\u011brnosti d\u00edl\u016f.<\/p>\n<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>K \u00fapln\u00e9mu vy\u017e\u00edh\u00e1n\u00ed v\u011bt\u0161iny hlin\u00edkov\u00fdch d\u00edl\u016f 6061 je zapot\u0159eb\u00ed 2-3hodinov\u00e1 doba \u017e\u00edh\u00e1n\u00ed p\u0159i teplot\u011b 775 \u00b0F.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>Tato doba zaji\u0161\u0165uje rovnom\u011brn\u00fd oh\u0159ev a \u00faplnou rekrystalizaci.<\/p><\/div>\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>K \u00fapln\u00e9mu \u017e\u00edh\u00e1n\u00ed jak\u00e9hokoli hlin\u00edkov\u00e9ho kusu sta\u010d\u00ed 30 minut nam\u00e1\u010den\u00ed.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>To&#039;nen\u00ed dost \u010dasu na rekrystalizaci siln\u011bj\u0161\u00edch \u00fasek\u016f.<\/p><\/div>\n<h2>Jak\u00fd zp\u016fsob chlazen\u00ed n\u00e1sleduje po \u017e\u00edh\u00e1n\u00ed 6061?<\/h2>\n<p>Je l\u00e1kav\u00e9 vyt\u00e1hnout d\u00edl z pece a nechat ho vychladnout na vzduchu. To v\u0161ak m\u016f\u017ee zru\u0161it v\u00fdhody \u017e\u00edh\u00e1n\u00ed.<\/p>\n<p><strong>Po \u017e\u00edh\u00e1n\u00ed mus\u00ed hlin\u00edk 6061 pomalu chladnout v peci - rychlost\u00ed p\u0159ibli\u017en\u011b 10 \u00b0C za hodinu a\u017e na 260 \u00b0C - a pot\u00e9 se ochladit na vzduchu.<\/strong><\/p>\n<p><figure><img decoding=\"async\" src=\"https:\/\/sinoextrud.com\/wp-content\/uploads\/Aluminum-Extrusion-Rail.webp\" alt=\"pomal\u00e9 ochlazov\u00e1n\u00ed hlin\u00edku v peci po \u017e\u00edh\u00e1n\u00ed\"><figcaption>Pomal\u00e9 chlazen\u00ed stabilizuje zrno a zabra\u0148uje jeho deformaci.<\/figcaption><\/figure>\n<\/p>\n<p>Toto pomal\u00e9 ochlazov\u00e1n\u00ed umo\u017e\u0148uje stabilizaci nov\u00fdch zrn bez vzniku vnit\u0159n\u00edho pnut\u00ed. P\u0159i p\u0159\u00edli\u0161 rychl\u00e9m ochlazen\u00ed by se kov mohl deformovat, praskat nebo by se u n\u011bj mohly objevit nerovnom\u011brn\u00e9 vlastnosti.<\/p>\n<h3>Strategie chlazen\u00ed<\/h3>\n<p>Zde je doporu\u010den\u00fd postup chlazen\u00ed po \u017e\u00edh\u00e1n\u00ed:<\/p>\n<ol>\n<li><strong>Podr\u017een\u00ed p\u0159i 775\u00b0F (2-3 h)<\/strong>: \u00dapln\u00e9 \u017e\u00edh\u00e1n\u00ed.<\/li>\n<li><strong>Ochlazen\u00ed na 500 \u00b0F<\/strong>: P\u0159i 50 \u00b0F\/hod (asi 10 \u00b0C\/hod).<\/li>\n<li><strong>Ochlazen\u00ed vzduchu na pokojovou teplotu<\/strong>: Jakmile je teplota ni\u017e\u0161\u00ed ne\u017e 500 \u00b0F.<\/li>\n<\/ol>\n<p>Vyhn\u011bte se chlazen\u00ed nucen\u00fdm vzduchem nebo kalen\u00ed vodou po \u017e\u00edh\u00e1n\u00ed, pokud se nechyst\u00e1te k \u00faprav\u011b roztokem. Rychl\u00e9 ochlazen\u00ed naru\u0161\u00ed pr\u00e1v\u011b vytvo\u0159enou strukturu zrn.<\/p>\n<h3>Souhrnn\u00e1 tabulka chlazen\u00ed<\/h3>\n<table>\n<thead>\n<tr>\n<th>F\u00e1ze chlazen\u00ed<\/th>\n<th>Hodnotit<\/th>\n<th>\u00da\u010del<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ochlazen\u00ed pece na 500 \u00b0F<\/td>\n<td>~50\u00b0F\/hod.<\/td>\n<td>Stabilizace zrna<\/td>\n<\/tr>\n<tr>\n<td>Ochlazen\u00ed vzduchu na pokojovou teplotu<\/td>\n<td>P\u0159\u00edrodn\u00ed<\/td>\n<td>Dokon\u010den\u00ed chlazen\u00ed, \u017e\u00e1dn\u00e9 zkreslen\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V m\u00e9 praxi vedlo vynech\u00e1n\u00ed \u0159\u00edzen\u00e9ho chlazen\u00ed k vy\u0159azen\u00ed d\u00edl\u016f. Tvrdost se u jednotliv\u00fdch s\u00e9ri\u00ed li\u0161ila. Jakmile jsme za\u010dali pec spr\u00e1vn\u011b chladit, kvalita v\u00fdrobk\u016f se stabilizovala.<\/p>\n<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>Po \u017e\u00edh\u00e1n\u00ed hlin\u00edku 6061 je nutn\u00e9 pomal\u00e9 chlazen\u00ed v peci.<\/b><span class='claim-true-or-false'>Pravda<\/span><\/p><p class='claim-explanation'>Zabra\u0148uje vnit\u0159n\u00edmu pnut\u00ed a udr\u017euje rovnom\u011brnou strukturu zrna.<\/p><\/div>\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>Chlazen\u00ed vzduchem ihned po \u017e\u00edh\u00e1n\u00ed zaji\u0161\u0165uje lep\u0161\u00ed tvorbu zrn.<\/b><span class='claim-true-or-false'>False<\/span><\/p><p class='claim-explanation'>To m\u016f\u017ee v\u00e9st k nerovnom\u011brn\u00e9mu ochlazov\u00e1n\u00ed a vzniku nap\u011bt\u00ed.<\/p><\/div>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Pro spr\u00e1vn\u00e9 \u017e\u00edh\u00e1n\u00ed hlin\u00edku 6061 zah\u0159ejte na 415 \u00b0C (775 \u00b0F), nechte 2-3 hodiny p\u016fsobit a p\u0159ed ochlazen\u00edm na vzduchu pomalu ochla\u010fte v peci. T\u00edm zajist\u00edte m\u011bkk\u00fd, tv\u00e1rn\u00fd materi\u00e1l p\u0159ipraven\u00fd k tv\u00e1\u0159en\u00ed nebo obr\u00e1b\u011bn\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Stable microstructure for uniform mechanical performance Most engineers struggle to get the right annealing conditions for 6061 aluminum. Wrong temperatures lead to inconsistent mechanical properties, cracking, or wasted material. The ideal annealing temperature for 6061 aluminum is around 775\u00b0F (415\u00b0C), held for 2\u20133 hours, followed by controlled furnace cooling. Many don&#8217;t realize how crucial the [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":5994,"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-10149","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\/10149","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=10149"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/10149\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/5994"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=10149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=10149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=10149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}