{"id":8372,"date":"2025-03-23T12:25:19","date_gmt":"2025-03-23T12:25:19","guid":{"rendered":"https:\/\/premiumalu.com\/mastering-2219-aluminum-ultimate-guide-for-success\/"},"modified":"2026-09-10T09:18:44","modified_gmt":"2026-09-10T09:18:44","slug":"mastering-2219-hlinik-konecny-pruvodce-pro-uspech","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/mastering-2219-aluminum-ultimate-guide-for-success\/","title":{"rendered":"Kone\u010dn\u00fd pr\u016fvodce slitinou hlin\u00edku 2219"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Co je hlin\u00edk 2219?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2219 je slitina \u0159ady 2xxx postaven\u00e1 na syst\u00e9mu hlin\u00edk-m\u011b\u010f-mangan, kde m\u011b\u010f v rozmez\u00ed 5,8\u20136,8 % zaji\u0161\u0165uje prim\u00e1rn\u00ed precipita\u010dn\u00ed vytvrzov\u00e1n\u00ed a mal\u00e9 p\u0159\u00eddavky titanu, vanadu a zirkonia udr\u017euj\u00ed velikost zrna a vysokoteplotn\u00ed stabilitu. Jej\u00ed ur\u010duj\u00edc\u00ed p\u0159ednost\u00ed je, \u017ee si zachov\u00e1v\u00e1 pevnost v velmi \u0161irok\u00e9m teplotn\u00edm p\u00e1smu \u2014 od kryogenn\u00edho pou\u017eit\u00ed a\u017e po p\u0159ibli\u017en\u011b 260 \u00b0C \u2014 a z\u00e1rove\u0148 z\u016fst\u00e1v\u00e1 jednou z m\u00e1la vysokopevnostn\u00edch jakost\u00ed 2xxx, kter\u00e9 lze spolehliv\u011b sva\u0159ovat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u00e1v\u011b toto spojen\u00ed sva\u0159itelnosti a teplotn\u00edho rozsahu je d\u016fvodem, pro\u010d 2219 tvo\u0159\u00ed z\u00e1klad leteck\u00fdch palivov\u00fdch n\u00e1dr\u017e\u00ed, kryogenn\u00edch n\u00e1dob a sva\u0159ovan\u00fdch tlakov\u00fdch konstrukc\u00ed, a p\u0159esn\u011b proto je stav vytvrzen\u00ed (T62, T851 nebo T87) a rozhodnut\u00ed o pl\u00e1tov\u00e1n\u00ed d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e samotn\u00fd n\u00e1zev slitiny.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chemick\u00e9 slo\u017een\u00ed<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Prvek<\/th><th>Obsah (%)<\/th><th>Role<\/th><\/tr><\/thead><tbody><tr><td>M\u011b\u010f (Cu)<\/td><td>5.8\u20136.8<\/td><td>Prim\u00e1rn\u00ed precipita\u010dn\u00ed zpev\u0148uj\u00edc\u00ed f\u00e1ze (Al\u2082Cu)<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.20\u20130.40<\/td><td>Zlep\u0161uje sva\u0159itelnost a \u0159\u00edzen\u00ed rekrystalizace<\/td><\/tr><tr><td>Ho\u0159\u010d\u00edk (Mg)<\/td><td>\u22640,02<\/td><td>Udr\u017eov\u00e1no ve stopov\u00e9m mno\u017estv\u00ed \u2014 zabra\u0148uje vzniku n\u00edzko taviteln\u00fdch eutektik, kter\u00e1 zp\u016fsobuj\u00ed prask\u00e1n\u00ed svar\u016f<\/td><\/tr><tr><td>K\u0159em\u00edk (Si)<\/td><td>\u22640,20<\/td><td>\u0158\u00edzen\u00ed ne\u010distot<\/td><\/tr><tr><td>\u017delezo (Fe)<\/td><td>\u22640,30<\/td><td>\u0158\u00edzen\u00ed ne\u010distot<\/td><\/tr><tr><td>Zinek (Zn)<\/td><td>\u22640,10<\/td><td>\u0158\u00edzen\u00ed ne\u010distot<\/td><\/tr><tr><td>Titan (Ti)<\/td><td>0.02\u20130.10<\/td><td>Zjemn\u011bn\u00ed zrna<\/td><\/tr><tr><td>Vanad (V)<\/td><td>0.05\u20130.15<\/td><td>Inhibuje rekrystalizaci, podporuje tepelnou stabilitu<\/td><\/tr><tr><td>Zirkonium (Zr)<\/td><td>0.10\u20130.25<\/td><td>Stabiln\u00ed disperzoidy (Al\u2083Zr) odol\u00e1vaj\u00ed r\u016fstu zrn za tepla<\/td><\/tr><tr><td>Chrom (Cr)<\/td><td>\u2014 (nespecifikov\u00e1no)<\/td><td>Nen\u00ed \u0159\u00edzen\u00fd p\u0159\u00eddavek v 2219<\/td><\/tr><tr><td>Hlin\u00edk (Al)<\/td><td>Bilance<\/td><td>Z\u00e1klad<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Mechanick\u00e9 vlastnosti podle zp\u016fsobu temperov\u00e1n\u00ed<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Common-Tempers-and-Their-Roles.png\" alt=\"\" class=\"wp-image-10465\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Common-Tempers-and-Their-Roles.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Common-Tempers-and-Their-Roles-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Common-Tempers-and-Their-Roles-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Common-Tempers-and-Their-Roles-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Common-Tempers-and-Their-Roles-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Hodnoty jsou typick\u00e9 pod\u00e9ln\u00e9; minim\u00e1ln\u00ed hodnoty podle ASTM B209 jsou ni\u017e\u0161\u00ed (nap\u0159\u00edklad minimum pro T62 je 414 MPa UTS \/ 290 MPa YS).<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Temperament<\/th><th>Mez pevnosti (MPa)<\/th><th>MS (MPa)<\/th><th>Prodlou\u017een\u00ed (%)<\/th><th>Tvrdost (HB)<\/th><\/tr><\/thead><tbody><tr><td>O (\u017e\u00edhan\u00fd)<\/td><td>170<\/td><td>76<\/td><td>18<\/td><td>45<\/td><\/tr><tr><td>T62<\/td><td>415<\/td><td>290<\/td><td>10<\/td><td>120<\/td><\/tr><tr><td>T81<\/td><td>455<\/td><td>350<\/td><td>10<\/td><td>135<\/td><\/tr><tr><td>T851<\/td><td>455<\/td><td>350<\/td><td>10<\/td><td>135<\/td><\/tr><tr><td>T87<\/td><td>475<\/td><td>395<\/td><td>10<\/td><td>140<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Rozd\u00edl mezi O a T87 ukazuje celou podstatu: v m\u011bkk\u00e9m stavu se 2219 snadno tv\u00e1\u0159\u00ed a sva\u0159uje, pot\u00e9 tepeln\u00e9 zpracov\u00e1n\u00ed zvy\u0161uje mez kluzu z p\u0159ibli\u017en\u011b 76 MPa na t\u00e9m\u011b\u0159 400 MPa. Pro v\u011bt\u0161inu sva\u0159ovan\u00fdch konstrukc\u00ed je T62 nebo T851 pracovn\u00edm kon\u011bm; T87 je vyhrazen pro silnost\u011bnn\u00e9 vysokotlak\u00e9 d\u00edly, kter\u00e9 pot\u0159ebuj\u00ed ka\u017ed\u00fd MPa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fyzik\u00e1ln\u00ed a podp\u016frn\u00e9 vlastnosti<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Majetek<\/th><th>Hodnota<\/th><\/tr><\/thead><tbody><tr><td>Hustota<\/td><td>2,84 g\/cm\u00b3 (vy\u0161\u0161\u00ed ne\u017e 6xxx kv\u016fli m\u011bdi)<\/td><\/tr><tr><td>Modul pru\u017enosti<\/td><td>~73 GPa<\/td><\/tr><tr><td>Tepeln\u00e1 vodivost<\/td><td>~120 W\/m\u00b7K<\/td><\/tr><tr><td>Sou\u010dinitel tepeln\u00e9 rozta\u017enosti<\/td><td>~22,5 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr><tr><td>Rozsah taven\u00ed<\/td><td>510\u2013640 \u00b0C<\/td><\/tr><tr><td>Mez \u00fanavy (10\u2077 cykl\u016f, T87)<\/td><td>~160 MPa<\/td><\/tr><tr><td>Smykov\u00e1 pevnost (T87)<\/td><td>~275 MPa<\/td><\/tr><tr><td>Lomov\u00e1 hou\u017eevnatost p\u0159i rovinn\u00e9 deformaci KIC (T87\/T851)<\/td><td>~35\u201340 MPa\u221am<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Hodnota KIC je tich\u00fdm hrdinou t\u00e9to slitiny: p\u0159i ekvivalentn\u00ed pevnosti je v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e u 7075-T6 (p\u0159ibli\u017en\u011b 25\u201329 MPa\u221am), a proto se konstrukce zam\u011b\u0159en\u00e9 na toleranci po\u0161kozen\u00ed uchyluj\u00ed k 2219, kdy\u017e n\u00e1dr\u017e nebo tlakov\u00e1 n\u00e1doba nem\u016f\u017ee tolerovat rychl\u00fd r\u016fst trhliny.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Teplotn\u00ed v\u00fdkonnost<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Temperature-Performance.png\" alt=\"\" class=\"wp-image-10466\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Temperature-Performance.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Temperature-Performance-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Temperature-Performance-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Temperature-Performance-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Temperature-Performance-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2219 je neobvykl\u00e1 t\u00edm, \u017ee s klesaj\u00edc\u00ed teplotou z\u00edsk\u00e1v\u00e1 pevnost. P\u0159i \u2212196 \u00b0C se pevnost v tahu a mez kluzu zvy\u0161uj\u00ed na p\u0159ibli\u017en\u011b 110 % hodnot p\u0159i pokojov\u00e9 teplot\u011b, zat\u00edmco ta\u017enost se zlep\u0161uje o 15\u201320 %; p\u0159i \u2212269 \u00b0C dosahuje n\u00e1r\u016fst p\u0159ibli\u017en\u011b 115 %, bez p\u0159echodu z tv\u00e1rn\u00e9ho na k\u0159ehk\u00fd lom. To je mechanismus, kter\u00fd stoj\u00ed za jej\u00edm v\u00fdb\u011brem pro n\u00e1dr\u017ee na kapaln\u00fd kysl\u00edk, kapaln\u00fd dus\u00edk a kapaln\u00fd vod\u00edk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na tepl\u00e9m konci je t\u0159eba p\u0159esnosti, proto\u017ee \u010d\u00edslo z\u00e1vis\u00ed na dob\u011b expozice:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Teplota<\/th><th>Zachovan\u00e1 pevnost (% RT)<\/th><th>Praktick\u00fd v\u00fdznam<\/th><\/tr><\/thead><tbody><tr><td>150 \u00b0C<\/td><td>85\u201390%<\/td><td>B\u011b\u017en\u00e9 zat\u00ed\u017een\u00ed p\u0159i zv\u00fd\u0161en\u00e9 teplot\u011b je v po\u0159\u00e1dku<\/td><\/tr><tr><td>205 \u00b0C<\/td><td>70\u201375%<\/td><td>Kr\u00e1tkodob\u00e9 sou\u010d\u00e1sti<\/td><\/tr><tr><td>260 \u00b0C<\/td><td>55\u201360%<\/td><td>Limit pro trval\u00e9 pou\u017eit\u00ed \u2014 sn\u00ed\u017eit n\u00e1vrhov\u00e9 hodnoty<\/td><\/tr><tr><td>315 \u00b0C<\/td><td>45\u201350%<\/td><td>Pouze kr\u00e1tkodob\u00e9 maximum, speci\u00e1ln\u00ed n\u00e1vrh<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pro srovn\u00e1n\u00ed, 2024 si p\u0159i 260 \u00b0C zachov\u00e1v\u00e1 pouze p\u0159ibli\u017en\u011b 30 % pevnosti p\u0159i pokojov\u00e9 teplot\u011b a 6061 ztr\u00e1c\u00ed pevnost rychle nad 150 \u00b0C. Trval\u00fd limit 260 \u00b0C je poctiv\u00fdm pracovn\u00edm stropem; 315 \u00b0C se objevuje v datov\u00fdch listech, ale plat\u00ed pro kr\u00e1tk\u00e9 v\u00fdkyvy, nikoli pro trval\u00e9 zat\u00ed\u017een\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sva\u0159itelnost a zpracov\u00e1n\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sva\u0159ov\u00e1n\u00ed.<\/strong> 2219 je sva\u0159iteln\u00e1 metodami GTAW (TIG) a GMAW (MIG) s p\u0159\u00eddavn\u00fdm materi\u00e1lem ER2319 (AWS A5.10), kter\u00fd odpov\u00edd\u00e1 chemick\u00e9mu slo\u017een\u00ed z\u00e1kladn\u00edho materi\u00e1lu. Kvalifikovan\u00fd svarov\u00fd spoj dosahuje p\u0159ibli\u017en\u011b 85\u201390 % pevnosti z\u00e1kladn\u00edho kovu a tepeln\u00e9 zpracov\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed (rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed a st\u00e1rnut\u00ed) obnov\u00ed vlastnosti svarov\u00e9 z\u00f3ny t\u00e9m\u011b\u0159 na plnou \u00farove\u0148. Pro dlouh\u00e9 svary n\u00e1dr\u017e\u00ed se rovn\u011b\u017e b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 sva\u0159ov\u00e1n\u00ed t\u0159en\u00edm s prom\u00edch\u00e1v\u00e1n\u00edm. N\u00edzk\u00fd obsah ho\u0159\u010d\u00edku udr\u017euje sklon k tvorb\u011b hork\u00fdch trhlin v\u00fdrazn\u011b pod \u00farovn\u00ed slitin 2024 nebo 2017.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Obr\u00e1b\u011bn\u00ed.<\/strong> Ve stavech T6 a T8 se 2219 obr\u00e1b\u00ed stejn\u011b jako ostatn\u00ed vysokopevnostn\u00ed slitiny Al-Cu \u2014 ostr\u00fd karbidov\u00fd n\u00e1stroj a \u0159\u00edzen\u00e9 zat\u00ed\u017een\u00ed b\u0159itu udr\u017euj\u00ed vznik n\u00e1r\u016fstku (p\u0159iva\u0159en\u00e9 t\u0159\u00edsky na \u0159ezn\u00e9 hran\u011b) na zvl\u00e1dnuteln\u00e9 \u00farovni.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Protikorozn\u00ed ochrana.<\/strong> Hol\u00fd 2219 m\u00e1 omezenou odolnost proti korozi kv\u016fli obsahu m\u011bdi. Pl\u00e1tov\u00e1n\u00ed (Alclad) nebo syst\u00e9m povlaku je standardem pro venkovn\u00ed nebo korozivn\u00ed prost\u0159ed\u00ed; stavy T851 a T87 zaji\u0161\u0165uj\u00ed lep\u0161\u00ed odolnost proti exfoliaci a korozn\u00edmu prask\u00e1n\u00ed nap\u011bt\u00edm d\u00edky \u0159\u00edzen\u00e9 struktu\u0159e zrn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tv\u00e1\u0159en\u00ed.<\/strong> Silnost\u011bnn\u00e9 nebo slo\u017eit\u00e9 pl\u00e1\u0161t\u011b tvarujte ve stavu O nebo T62, pot\u00e9 tepeln\u011b zpracujte hotov\u00fd sva\u0159enec \u2014 to je postup pro velk\u00e9 kryogenn\u00ed n\u00e1dr\u017ee. Stavy T8 jsou m\u00e9n\u011b tva\u0159iteln\u00e9 a obvykle se obr\u00e1b\u011bj\u00ed nebo pou\u017e\u00edvaj\u00ed v t\u00e9m\u011b\u0159 kone\u010dn\u00e9m tvaru.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2219 vs 2024, 7075 a 6061<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/2219-vs-2024-7075-and-6061.png\" alt=\"\" class=\"wp-image-10464\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/2219-vs-2024-7075-and-6061.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/2219-vs-2024-7075-and-6061-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/2219-vs-2024-7075-and-6061-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/2219-vs-2024-7075-and-6061-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/2219-vs-2024-7075-and-6061-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Slitina (stav)<\/th><th>Mez pevnosti \/ mez kluzu (MPa)<\/th><th>Sva\u0159iteln\u00e1?<\/th><th>Retence p\u0159i zv\u00fd\u0161en\u00e9 teplot\u011b<\/th><th>Koroze (hol\u00fd povrch)<\/th><\/tr><\/thead><tbody><tr><td>2219-T87<\/td><td>475 \/ 395<\/td><td>Ano (2319 + TZP)<\/td><td>Dobr\u00e1 do 260 \u00b0C<\/td><td>\u0160patn\u00e1 \u2014 vy\u017eaduje pl\u00e1tov\u00e1n\u00ed<\/td><\/tr><tr><td>2024-T3<\/td><td>483 \/ 345<\/td><td>Ne<\/td><td>Uspokojiv\u00e1, strop ~150 \u00b0C<\/td><td>\u0160patn\u00fd<\/td><\/tr><tr><td>7075-T6<\/td><td>572 \/ 503<\/td><td>Ne<\/td><td>\u0160patn\u00fd<\/td><td>\u0160patn\u00e1\u2013st\u0159edn\u00ed<\/td><\/tr><tr><td>6061-T6<\/td><td>310 \/ 276<\/td><td>Ano<\/td><td>Omezen\u00e1, nad 150 \u00b0C kles\u00e1<\/td><td>Dobr\u00fd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Rozhodnut\u00ed m\u00e1lokdy z\u00e1vis\u00ed na \u0161pi\u010dkov\u00e9 pevnosti za pokojov\u00e9 teploty. Zvolte 2219, kdy\u017e mus\u00ed b\u00fdt d\u00edl sva\u0159ov\u00e1n, mus\u00ed \u010delit kryogenn\u00edm nebo trvale vysok\u00fdm teplot\u00e1m, nebo mus\u00ed vykazovat vysokou lomovou hou\u017eevnatost p\u0159i pevnosti nad 400 MPa. Zvolte 2024-T3 nebo 7075-T6, kdy\u017e je pom\u011br pevnosti k hmotnosti za pokojov\u00e9 teploty jedin\u00fdm krit\u00e9riem a sva\u0159ov\u00e1n\u00ed se neuplat\u0148uje. Zvolte 6061-T6 pro obecnou, korozn\u011b exponovanou a cenov\u011b citlivou v\u00fdrobu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u011b\u017en\u00e9 stavy a jak volit<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T62<\/strong> \u2014 rozpou\u0161t\u011bc\u00ed tepeln\u00e9 zpracov\u00e1n\u00ed a um\u011bl\u00e9 st\u00e1rnut\u00ed. Univerz\u00e1ln\u00ed leteck\u00fd stav a stav pou\u017e\u00edvan\u00fd pro sva\u0159ovan\u00e9 sestavy, kter\u00e9 jsou tepeln\u011b zpracov\u00e1v\u00e1ny po v\u00fdrob\u011b.<\/li>\n\n\n\n<li><strong>T6<\/strong> \u2014 stejn\u00fd postup bez kroku za studena; m\u00edrn\u011b lep\u0161\u00ed chov\u00e1n\u00ed ve sva\u0159ovan\u00e9m stavu pro sou\u010d\u00e1sti tepeln\u011b zpracov\u00e1van\u00e9 po sva\u0159ov\u00e1n\u00ed.<\/li>\n\n\n\n<li><strong>T81<\/strong> \u2014 rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed, tv\u00e1\u0159en\u00ed za studena a st\u00e1rnut\u00ed; vy\u0161\u0161\u00ed pevnost ne\u017e T62.<\/li>\n\n\n\n<li><strong>T851<\/strong> \u2014 rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed, protahovac\u00ed odstran\u011bn\u00ed vnit\u0159n\u00edho pnut\u00ed a st\u00e1rnut\u00ed. N\u00edzk\u00e9 zbytkov\u00e9 nap\u011bt\u00ed z n\u011bj \u010din\u00ed volbu pro p\u0159esn\u011b obr\u00e1b\u011bn\u00e9 d\u00edly a tlakov\u00e9 n\u00e1doby, kde mus\u00ed b\u00fdt deformace od sva\u0159ov\u00e1n\u00ed mal\u00e1.<\/li>\n\n\n\n<li><strong>T87<\/strong> \u2014 rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed, ~7% tv\u00e1\u0159en\u00ed za studena a st\u00e1rnut\u00ed. Nejvy\u0161\u0161\u00ed pevnost a m\u00edrn\u011b ni\u017e\u0161\u00ed ta\u017enost; pou\u017e\u00edv\u00e1 se pro silnost\u011bnn\u00e9 tlakov\u00e9 n\u00e1doby pro vysok\u00e9 tlaky.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Logika v\u00fdb\u011bru v jedn\u00e9 \u0159ad\u011b: po\u017eadov\u00e1no sva\u0159ov\u00e1n\u00ed \u2192 T62 nebo T6; maxim\u00e1ln\u00ed pevnost \u2192 T87; kontrola nap\u011bt\u00ed a odolnost proti SCC \u2192 T851.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kde se 2219 pou\u017e\u00edv\u00e1<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Where-2219-Is-Used.png\" alt=\"\" class=\"wp-image-10467\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Where-2219-Is-Used.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Where-2219-Is-Used-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Where-2219-Is-Used-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Where-2219-Is-Used-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/03\/Where-2219-Is-Used-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Leteck\u00e9 a kosmick\u00e9 konstrukce.<\/strong> Palivov\u00e9 n\u00e1dr\u017ee, kryogenn\u00ed skladovac\u00ed n\u00e1doby, k\u0159\u00eddeln\u00ed panely a r\u00e1my trupu se spol\u00e9haj\u00ed na 2219, proto\u017ee stejn\u00fd materi\u00e1l lze sva\u0159ovat, pot\u00e9 tepeln\u011b zpracovat a st\u00e1le absorbovat kryogenn\u00ed r\u00e1zov\u00e1 zat\u00ed\u017een\u00ed bez ztr\u00e1ty hou\u017eevnatosti. Vn\u011bj\u0161\u00ed n\u00e1dr\u017e raketopl\u00e1nu Space Shuttle a sou\u010dasn\u00e9 centr\u00e1ln\u00ed stupn\u011b nosn\u00fdch raket se z n\u011bj vyr\u00e1b\u011bj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Obrann\u00e9 a pr\u016fmyslov\u00e9 tlakov\u00e9 za\u0159\u00edzen\u00ed.<\/strong> Sva\u0159ovan\u00e9 tlakov\u00e9 n\u00e1doby, vysokoteplotn\u00ed n\u00e1stroje a komponenty v\u00fdm\u011bn\u00edk\u016f tepla pou\u017e\u00edvaj\u00ed 2219 tam, kde je sou\u010d\u00e1st\u00ed specifikace trval\u00e1 teplota kolem 260 \u00b0C nebo vysok\u00e1 lomov\u00e1 hou\u017eevnatost p\u0159i pevnosti nad 400 MPa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Limity Go \/ No-Go<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pou\u017eijte tento p\u0159ehled k rozhodnut\u00ed, zda 2219 vyhovuje, ne\u017e jej zad\u00e1te do specifikace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pou\u017eijte \u2014 2219 pou\u017eijte, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rozsah provozn\u00edch teplot sah\u00e1 od kryogenn\u00edch teplot do p\u0159ibli\u017en\u011b 260 \u00b0C a pot\u0159ebujete zachovanou pevnost na obou konc\u00edch, nejen za pokojov\u00e9 teploty.<\/li>\n\n\n\n<li>Je vy\u017eadov\u00e1no tavn\u00e9 sva\u0159ov\u00e1n\u00ed a st\u00e1le pot\u0159ebujete mez kluzu nad 400 MPa \u2014 2219 se sva\u0159uje s 2319, na rozd\u00edl od 2024 nebo 7075.<\/li>\n\n\n\n<li>Specifikace po\u017eaduje vysokou lomovou hou\u017eevnatost p\u0159i pevnosti nad 400 MPa, nap\u0159\u00edklad u n\u00e1dr\u017ee nebo tlakov\u00e9 n\u00e1doby, kde mus\u00ed r\u016fst trhliny z\u016fstat pomal\u00fd.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nepou\u017e\u00edvejte \u2014 2219 nepou\u017e\u00edvejte, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0160pi\u010dkov\u00e1 pevnost za pokojov\u00e9 teploty je jedin\u00fdm krit\u00e9riem \u2014 2024-T3 nebo 7075-T6 poskytuj\u00ed vy\u0161\u0161\u00ed hodnoty p\u0159i ni\u017e\u0161\u00edch n\u00e1kladech a \u0161ir\u0161\u00ed dostupnosti.<\/li>\n\n\n\n<li>Je vy\u017eadov\u00e1na odolnost hol\u00e9ho povrchu proti korozi \u2014 pl\u00e1tov\u00e1n\u00ed nebo povlak je pro 2219 v korozivn\u00edm prost\u0159ed\u00ed povinn\u00e9.<\/li>\n\n\n\n<li>Jde o obecnou v\u00fdrobu s omezen\u00fdm rozpo\u010dtem \u2014 6061-T6 pokr\u00fdv\u00e1 v\u011bt\u0161inu konstruk\u010dn\u00edch a venkovn\u00edch prac\u00ed levn\u011bji.<\/li>\n\n\n\n<li>Pot\u0159ebujete velkos\u00e9riovou v\u00fdrobu s rychl\u00fdm obratem \u2014 2219 je speci\u00e1ln\u00ed slitina s u\u017e\u0161\u00ed dostupnost\u00ed; p\u0159ed z\u00e1vazkem si ov\u011b\u0159te dodac\u00ed lh\u016ftu.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdhody a omezen\u00ed na prvn\u00ed pohled<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Rozm\u011br<\/th><th>S\u00edla<\/th><th>Pozor na<\/th><\/tr><\/thead><tbody><tr><td>Pevnost (za tepla i za studena)<\/td><td>Siln\u00e1 p\u0159i kryogenn\u00edch teplot\u00e1ch a do 260 \u00b0C<\/td><td>Ni\u017e\u0161\u00ed \u0161pi\u010dka za pokojov\u00e9 teploty ne\u017e 7075<\/td><\/tr><tr><td>Sva\u0159itelnost<\/td><td>Vynikaj\u00edc\u00ed mezi t\u0159\u00eddami 2xxx<\/td><td>Vy\u017eaduje TZP; hol\u00fd tvar pot\u0159ebuje pl\u00e1tov\u00e1n\u00ed<\/td><\/tr><tr><td>Teplotn\u00ed rozsah<\/td><td>\u2212269 \u00b0C a\u017e 260 \u00b0C trvale<\/td><td>315 \u00b0C pouze kr\u00e1tkodob\u011b<\/td><\/tr><tr><td>Koroze<\/td><td>Pl\u00e1tov\u00e1n\u00ed v\u00fdrazn\u011b prodlu\u017euje \u017eivotnost<\/td><td>\u0160patn\u00e1 v hol\u00e9m stavu; zp\u016fsobeno m\u011bd\u00ed<\/td><\/tr><tr><td>Hou\u017eevnatost<\/td><td>Vysok\u00e1 KIC vs s\u00e9rie 7000<\/td><td>\u2014<\/td><\/tr><tr><td>Dostupnost<\/td><td>Podporovan\u00e9 speci\u00e1ln\u00ed t\u0159\u00eddy<\/td><td>U\u017e\u0161\u00ed sortiment ne\u017e 6xxx<\/td><\/tr><tr><td>N\u00e1klady<\/td><td>Pr\u00e9miov\u00fd, od\u016fvodn\u011bn\u00fd funkc\u00ed<\/td><td>Vy\u0161\u0161\u00ed ne\u017e u 6061<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2219 vym\u011b\u0148uje \u010d\u00e1st pevnosti za pokojov\u00e9 teploty za sva\u0159itelnost a teplotn\u00ed rozsah, kter\u00fd \u017e\u00e1dn\u00e1 jin\u00e1 b\u011b\u017en\u00e1 vysokopevnostn\u00ed t\u0159\u00edda nedosahuje \u2014 jde v\u0161ak o speci\u00e1ln\u00ed slitinu s u\u017e\u0161\u00edm sortimentem a povinn\u00fdm krokem protikorozn\u00ed ochrany. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spole\u010dnost Linsy Aluminum dod\u00e1v\u00e1 <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/2219-hlinikova-slitina\/\" data-type=\"link\" data-id=\"https:\/\/premiumalu.com\/product\/2219-aluminum-alloy\/\">Plech a ty\u010d 2219<\/a>, podporuje sva\u0159ovan\u00e9 konstrukce v r\u00e1mci vlastn\u00edho z\u00e1vodu prost\u0159ednictv\u00edm sva\u0159ov\u00e1n\u00ed TIG a MIG a dopl\u0148uje CNC obr\u00e1b\u011bn\u00ed, laserov\u00e9 \u0159ez\u00e1n\u00ed a povrchov\u00e9 \u00fapravy, tak\u017ee n\u00e1dr\u017e nebo konstrukce m\u016f\u017ee p\u0159ej\u00edt od materi\u00e1lu k hotov\u00e9mu d\u00edlu pod jednou st\u0159echou. Ka\u017ed\u00e1 objedn\u00e1vka je dod\u00e1v\u00e1na s MTC, testov\u00e1n\u00ed SGS je k dispozici na vy\u017e\u00e1d\u00e1n\u00ed a zak\u00e1zkov\u00e1 v\u00fdroba s n\u00edzk\u00fdm MOQ trv\u00e1 10\u201360 dn\u00ed. Za\u0161lete v\u00fdkres pro posouzen\u00ed vhodnosti t\u0159\u00eddy a dodac\u00ed lh\u016fty.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Jak si vede 2219 p\u0159i kryogenn\u00edch teplot\u00e1ch?<\/strong><br>Pevnost roste s klesaj\u00edc\u00ed teplotou \u2014 p\u0159i \u2212196 \u00b0C dosahuj\u00ed pevnost v tahu a mez kluzu p\u0159ibli\u017en\u011b 110% hodnot p\u0159i pokojov\u00e9 teplot\u011b a ta\u017enost se zlep\u0161uje o 15\u201320%, bez p\u0159echodu z tv\u00e1rn\u00e9ho na k\u0159ehk\u00fd stav. Proto je standardem pro n\u00e1dr\u017ee na kapaln\u00fd kysl\u00edk, kapaln\u00fd dus\u00edk a kapaln\u00fd vod\u00edk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lze 2219 sva\u0159ovat a jak\u00fd p\u0159\u00eddavn\u00fd materi\u00e1l se pou\u017e\u00edv\u00e1?<\/strong><br>Ano. GTAW (TIG) i GMAW (MIG) funguj\u00ed, p\u0159i\u010dem\u017e p\u0159\u00eddavn\u00fd materi\u00e1l ER2319 odpov\u00edd\u00e1 z\u00e1kladn\u00edmu kovu. Kvalifikovan\u00fd spoj dosahuje p\u0159ibli\u017en\u011b 85\u201390% pevnosti z\u00e1kladn\u00edho materi\u00e1lu a tepeln\u00e9 zpracov\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed obnovuje oblast svaru; pro dlouh\u00e9 svary je b\u011b\u017en\u00e9 tak\u00e9 sva\u0159ov\u00e1n\u00ed t\u0159en\u00edm s prom\u00edch\u00e1v\u00e1n\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Jak\u00fd je hlavn\u00ed rozd\u00edl mezi 2219 a 2024?<\/strong><br>Sva\u0159itelnost a teplotn\u00ed rozsah. 2024-T3 m\u00e1 podobnou nebo vy\u0161\u0161\u00ed pevnost p\u0159i pokojov\u00e9 teplot\u011b, ale je v podstat\u011b nesva\u0159iteln\u00e1 a m\u011bkne nad p\u0159ibli\u017en\u011b 150 \u00b0C. 2219 se sva\u0159uje s 2319 a udr\u017euje pou\u017eitelnou pevnost do 260 \u00b0C, a to za cenu m\u00edrn\u011b ni\u017e\u0161\u00ed \u0161pi\u010dkov\u00e9 pevnosti a povinn\u00e9ho pl\u00e1tov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kter\u00e9 tepeln\u00e9 zpracov\u00e1n\u00ed m\u00e1m zvolit \u2014 T62, T851, nebo T87?<\/strong><br>Po\u017eadov\u00e1no sva\u0159ov\u00e1n\u00ed \u2192 T62 nebo T6 (tepeln\u011b zpracov\u00e1no po v\u00fdrob\u011b). Maxim\u00e1ln\u00ed pevnost \u2192 T87 pro tlakov\u00e9 d\u00edly se silnou st\u011bnou. Pot\u0159eba n\u00edzk\u00e9ho zbytkov\u00e9ho nap\u011bt\u00ed a odolnosti proti korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed pro obr\u00e1b\u011bn\u00e9 nebo sva\u0159ovan\u00e9 n\u00e1doby \u2192 T851.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Je 2219 dostupn\u00fd jako plech, deska a ty\u010d?<\/strong><br>P\u0159edev\u0161\u00edm deska a ty\u010d, plus extrudovan\u00e9 profily a materi\u00e1l pro kov\u00e1n\u00ed. Tenk\u00fd plech je m\u00e9n\u011b b\u011b\u017en\u00fd ne\u017e deska; p\u0159ed specifikac\u00ed si u dodavatele potvr\u010fte tlou\u0161\u0165ku, tepeln\u00e9 zpracov\u00e1n\u00ed a minim\u00e1ln\u00ed objednac\u00ed mno\u017estv\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Vy\u017eaduje 2219 pl\u00e1tov\u00e1n\u00ed pro protikorozn\u00ed ochranu?<\/strong><br>V hol\u00e9m stavu ano pro korozivn\u00ed nebo venkovn\u00ed pou\u017eit\u00ed \u2014 jeho obsah m\u011bdi poskytuje omezenou odolnost. Verze Alclad nebo syst\u00e9m povlaku jsou standardem; tepeln\u00e9 zpracov\u00e1n\u00ed T851 a T87 nav\u00edc p\u0159id\u00e1vaj\u00ed lep\u0161\u00ed odolnost proti exfoliaci a korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>What Is 2219 Aluminum? 2219 is a 2xxx-series alloy built on an aluminum-copper-manganese system, with copper at 5.8\u20136.8% doing the primary precipitation-hardening work and small additions of titanium, vanadium, and zirconium holding grain size and high-temperature stability. Its defining edge is that it stays strong across a very wide temperature band \u2014 from cryogenic service [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10468,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"2219 Aluminum Alloy: Properties, Welding, and Temperature Performance Guide","_seopress_titles_desc":"In-depth guide to 2219 aluminum alloy covering elevated-temperature strength, cryogenic performance, TIG\/MIG welding parameters, and comparisons with 2024, 7075, and 6061. 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