{"id":8629,"date":"2025-04-24T14:25:43","date_gmt":"2025-04-24T14:25:43","guid":{"rendered":"https:\/\/premiumalu.com\/mastering-4047-aluminum-expert-tips-and-techniques\/"},"modified":"2026-10-08T01:26:29","modified_gmt":"2026-10-08T01:26:29","slug":"mastering-4047-hlinik-expertni-tipy-a-techniky","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/mastering-4047-aluminum-expert-tips-and-techniques\/","title":{"rendered":"Hlin\u00edk 4047: P\u00e1jec\u00ed plnivo a sva\u0159ovac\u00ed dr\u00e1t v jedn\u00e9 slitin\u011b"},"content":{"rendered":"<p class=\"wp-block-paragraph\">4047 je hlin\u00edkov\u00e1-silik\u00e1tov\u00e1 p\u00e1jec\u00ed slitina obsahuj\u00edc\u00ed 11\u201313 % k\u0159em\u00edku. Nen\u00ed to konstruk\u010dn\u00ed tv\u00e1\u0159en\u00e1 jakost \u2014 nepostav\u00edte z n\u00ed r\u00e1m. Kupujete ji pro spojov\u00e1n\u00ed jin\u00fdch hlin\u00edkov\u00fdch d\u00edl\u016f a tento \u00fakol pln\u00ed ve dvou r\u016fzn\u00fdch procesech podle dvou r\u016fzn\u00fdch norem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4047 je specifikov\u00e1na ve dvou rol\u00edch podle dvou r\u016fzn\u00fdch norem \u2014 AWS A5.8 BAlSi-4 jako p\u00e1jec\u00ed slitina, AWS A5.10 ER4047 jako sva\u0159ovac\u00ed dr\u00e1t. Uve\u010fte roli v popt\u00e1vce, proto\u017ee forma, proces i dokumentace se od n\u00ed odv\u00edjej\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jedno omezen\u00ed rozhoduje o tom, zda v\u016fbec funguje: teplota solidu z\u00e1kladn\u00edho kovu, kter\u00fd spojujete.<\/p>\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\/2026\/10\/4047-cover.webp\" alt=\"4047 obal\" class=\"wp-image-10668\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-cover.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-cover-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-cover-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-cover-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-cover-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Dv\u011b normy, jedna slitina<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Stejn\u00e9 slo\u017een\u00ed 4047 je registrov\u00e1no pod dv\u011bma specifikacemi AWS a ta, kter\u00e1 se pou\u017eije, z\u00e1vis\u00ed na procesu, nikoli na slitin\u011b:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Standardn\u00ed<\/td><td>Ozna\u010den\u00ed<\/td><td>Proces<\/td><td>Typick\u00e1 forma<\/td><\/tr><tr><td>AWS A5.8 \/ A5.8M<\/td><td>BAlSi-4<\/td><td>P\u00e1jen\u00ed<\/td><td>F\u00f3lie, p\u00e1s, p\u0159edlisky, pasta, pl\u00e1tovan\u00e1 vrstva na p\u00e1jec\u00edm plechu<\/td><\/tr><tr><td>AWS A5.10 \/ A5.10M<\/td><td>ER4047<\/td><td>Sva\u0159ov\u00e1n\u00ed GTAW (TIG) a GMAW (MIG)<\/td><td>Dr\u00e1t na c\u00edvce nebo na\u0159ezan\u00fd na d\u00e9lku, ty\u010d<\/td><\/tr><tr><td>AMS 4185<\/td><td>\u2014<\/td><td>Leteck\u00e1 p\u00e1jec\u00ed slitina<\/td><td>Dr\u00e1t, ty\u010d<\/td><\/tr><tr><td>ISO 17672<\/td><td>Al 112<\/td><td>P\u00e1jen\u00ed<\/td><td>Viz v\u00fd\u0161e<\/td><\/tr><tr><td>GB\/T 13815<\/td><td>BAl88Si<\/td><td>P\u00e1jen\u00ed<\/td><td>Viz v\u00fd\u0161e<\/td><\/tr><tr><td>CS<\/td><td>EN AW-4047<\/td><td>Ob\u011b slitiny<\/td><td>Viz v\u00fd\u0161e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">P\u00e1jec\u00ed slitina prod\u00e1van\u00e1 jako \u201cdr\u00e1t 4047\u201d pro sva\u0159ov\u00e1n\u00ed TIG a p\u00e1jec\u00ed slitina prod\u00e1van\u00e1 jako \u201cf\u00f3lie 4047\u201d pro pecn\u00ed p\u00e1jen\u00ed jsou stejn\u00e1 slitina v r\u016fzn\u00fdch form\u00e1ch. Co se m\u011bn\u00ed, je proces, mezera ve spoji a teplota, kter\u00e9 je sestava vystavena.<\/p>\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\/2026\/10\/4047-two-processes.webp\" alt=\"4047-dva-procesy\" class=\"wp-image-10669\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-two-processes.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-two-processes-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-two-processes-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-two-processes-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-two-processes-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Stoj\u00ed za to to uv\u00e9st jasn\u011b, proto\u017ee opa\u010dn\u00e9 tvrzen\u00ed se \u0161iroce \u0161\u00ed\u0159\u00ed: <strong>4047 lze pou\u017e\u00edt pro sva\u0159ov\u00e1n\u00ed TIG a MIG.<\/strong> ER4047 je uveden\u00e1 klasifikace v AWS A5.10 a je b\u011b\u017enou volbou pro opravy odlitk\u016f z hlin\u00edku, tenkost\u011bnn\u00e9 pr\u00e1ce na 6xxx a trubky v\u00fdm\u011bn\u00edk\u016f tepla. Nen\u00ed to v\u00fdchoz\u00ed p\u00e1jec\u00ed slitina pro ka\u017ed\u00fd svar na 6xxx \u2014 tou je ER4043 \u2014 ale \u201c4047 je p\u00e1jec\u00ed slitina a nelze s n\u00ed sva\u0159ovat\u201d je nespr\u00e1vn\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chemick\u00e9 slo\u017een\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u0159em\u00edk bl\u00edzko eutektick\u00e9ho bodu Al-Si je cel\u00fd z\u00e1m\u011br n\u00e1vrhu. \u017delezo, m\u011b\u010f, mangan, ho\u0159\u010d\u00edk a zinek jsou omezen\u00e9 ne\u010distoty, nikoli z\u00e1m\u011brn\u00e9 p\u0159\u00edsady:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Prvek<\/td><td>Obsah (%)<\/td><td>Role<\/td><\/tr><tr><td>K\u0159em\u00edk (Si)<\/td><td>11.0\u201313.0<\/td><td>Tv\u016frce eutektika \u2014 \u0159\u00edd\u00ed teplotu taven\u00ed a tekutost<\/td><\/tr><tr><td>\u017delezo (Fe)<\/td><td>\u2264 0,8<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>M\u011b\u010f (Cu)<\/td><td>\u2264 0,30<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>\u2264 0.15<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>Ho\u0159\u010d\u00edk (Mg)<\/td><td>\u2264 0,10<\/td><td>Ne\u010distota, udr\u017eovan\u00e1 n\u00edzko pro pecn\u00ed p\u00e1jen\u00ed<\/td><\/tr><tr><td>Zinek (Zn)<\/td><td>\u2264 0,20<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>Beryllium (Be)<\/td><td>\u2264 0,0003<\/td><td>Limit uplat\u0148ovan\u00fd podle klasifikace sva\u0159ovac\u00edho dr\u00e1tu<\/td><\/tr><tr><td>Ostatn\u00ed, ka\u017ed\u00fd \/ celkem<\/td><td>\u2264 0,05 \/ \u2264 0,15<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>Hlin\u00edk (Al)<\/td><td>Zbytek<\/td><td>Z\u00e1kladn\u00ed matrice<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ho\u0159\u010d\u00edk je dr\u017een na 0,10 % z n\u011bjak\u00e9ho d\u016fvodu. Pecn\u00ed p\u00e1jen\u00ed a p\u00e1jen\u00ed v \u0159\u00edzen\u00e9 atmosf\u00e9\u0159e z\u00e1vis\u00ed na tom, \u017ee p\u00e1jec\u00ed slitina z\u016fstane \u010dist\u00e1; ho\u0159\u010d\u00edk v p\u00e1jec\u00ed slitin\u011b komplikuje kontrolu tavidla a atmosf\u00e9ry. M\u011bjte tento limit na pam\u011bti, kdy\u017e dodavatel nab\u00edz\u00ed slitinu \u201ctypu 4047\u201d s voln\u011bj\u0161\u00edm limitem ho\u0159\u010d\u00edku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4047 nen\u00ed tepeln\u011b zpracovateln\u00e1. Neexistuje \u017e\u00e1dn\u00e1 odezva precipita\u010dn\u00edho vytvrzov\u00e1n\u00ed, kterou by bylo mo\u017en\u00e9 vyu\u017e\u00edt, tak\u017ee \u017e\u00e1dn\u00e9 st\u00e1rnut\u00ed po p\u00e1jen\u00ed ani po sva\u0159ov\u00e1n\u00ed nezv\u00fd\u0161\u00ed jej\u00ed pevnost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d z\u00e1le\u017e\u00ed na slo\u017een\u00ed bl\u00edzk\u00e9m eutektiku<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Z obsahu k\u0159em\u00edku p\u0159\u00edmo vypl\u00fdvaj\u00ed t\u0159i vlastnosti a v\u0161echny t\u0159i jsou d\u016fvodem, pro\u010d 4047 existuje:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rozsah taven\u00ed.<\/strong> Solidus 577 \u00b0C, liquidus 582 \u00b0C \u2014 ka\u0161ovit\u00e1 z\u00f3na p\u0159ibli\u017en\u011b 5 \u00b0C. Publikovan\u00e9 datov\u00e9 listy uv\u00e1d\u011bj\u00ed 1070\u20131080 \u00b0F (577\u2013582 \u00b0C) jako rozsah taven\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chov\u00e1n\u00ed p\u0159i tuhnut\u00ed.<\/strong> Proto\u017ee slitina le\u017e\u00ed t\u00e9m\u011b\u0159 na eutektick\u00e9m slo\u017een\u00ed, p\u0159ech\u00e1z\u00ed z pln\u011b tekut\u00e9ho do pln\u011b tuh\u00e9ho stavu v rozmez\u00ed n\u011bkolika stup\u0148\u016f. Neexistuje dlouh\u00e1 ka\u0161ovit\u00e1 f\u00e1ze, co\u017e potla\u010duje vznik hork\u00fdch trhlin ve spoji.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tekutost.<\/strong> N\u00edzkotaj\u00edc\u00ed, n\u00edzkovisk\u00f3zn\u00ed tavenina se vsakuje do kapil\u00e1rn\u00edch mezer, co\u017e umo\u017e\u0148uje t\u011bsn\u00e9 p\u00e1jen\u00e9 spoje ve v\u00fdm\u011bn\u00edc\u00edch tepla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Srovnejte to s 4043 (4,5\u20136,0 % Si). Jej\u00ed solidus le\u017e\u00ed v podobn\u00e9 oblasti, ale liquidus je mnohem vy\u0161\u0161\u00ed, co\u017e d\u00e1v\u00e1 \u0161irok\u00fd ka\u0161ovit\u00fd rozsah. Jako sva\u0159ovac\u00ed dr\u00e1t je to v po\u0159\u00e1dku. Jako p\u00e1jec\u00ed slitina pro t\u011bsn\u00e9, nepropustn\u00e9 spoje to nen\u00ed \u2014 p\u00e1jec\u00ed slitina z\u016fst\u00e1v\u00e1 p\u0159\u00edli\u0161 dlouho polotuh\u00e1, ne\u017e aby \u010dist\u011b pronikla \u00fazkou mezerou.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4047 jako p\u00e1jec\u00ed slitina<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Toto je prim\u00e1rn\u00ed aplikace 4047 a d\u016fvod, pro\u010d byla vyvinuta.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Procesy.<\/strong> P\u00e1jen\u00ed v \u0159\u00edzen\u00e9 atmosf\u00e9\u0159e (CAB), vakuov\u00e9 p\u00e1jen\u00ed a p\u00e1jen\u00ed plamenem.<\/li>\n\n\n\n<li><strong>Typick\u00e1 teplota p\u00e1jen\u00ed.<\/strong> P\u0159ibli\u017en\u011b 580\u2013605 \u00b0C. Publikovan\u00e1 praxe v d\u00edln\u00e1ch \u0159ad\u00ed vrchol do tohoto p\u00e1sma, p\u0159i\u010dem\u017e horn\u00ed hranice se vyh\u00fdb\u00e1me kv\u016fli ochran\u011b tenk\u00fdch pr\u016f\u0159ez\u016f z\u00e1kladn\u00edho kovu.<\/li>\n\n\n\n<li><strong>Sp\u00e1ra spoje.<\/strong> P\u0159ibli\u017en\u011b 0,05\u20130,20 mm. Pod touto hodnotou kapil\u00e1rn\u00ed tok st\u00e1le funguje; nad n\u00ed je p\u0159\u00eddavn\u00fd kov dostate\u010dn\u011b tekut\u00fd, aby ze spoje vytekl d\u0159\u00edve, ne\u017e ztuhne.<\/li>\n\n\n\n<li><strong>Formy.<\/strong> F\u00f3lie a p\u00e1sy, p\u0159edlisky a krou\u017eky, pasta a pl\u00e1tovan\u00e1 vrstva na v\u00edcevrstv\u00e9m p\u00e1jec\u00edm plechu.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00e9 p\u00e1jen\u00e9 sestavy: automobilov\u00e9 chladi\u010de a j\u00e1dra topen\u00ed, chladi\u010de plnic\u00edho vzduchu, spoje kondenz\u00e1tor\u016f a v\u00fdparn\u00edk\u016f HVAC, deskov\u00e9 sestavy pro chlazen\u00ed a leteck\u00e9 v\u00fdm\u011bn\u00edky tepla a olejov\u00e9 chladi\u010de chlazen\u00e9 palivem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jedno o\u010dek\u00e1v\u00e1n\u00ed je t\u0159eba uv\u00e9st na pravou m\u00edru: AWS A5.8 klasifikuje <em>p\u0159\u00eddavn\u00fd kov<\/em> \u2014 jeho chemick\u00e9 slo\u017een\u00ed a tavic\u00ed chov\u00e1n\u00ed. Nep\u0159i\u0159azuje pevnost p\u00e1jen\u00e9ho spoje. Pevnost spoje vych\u00e1z\u00ed ze z\u00e1kladn\u00edho kovu, konstrukce spoje, sp\u00e1ry a tepeln\u00e9ho cyklu. Pokud projekt vy\u017eaduje kvalifikovanou hodnotu, mus\u00ed vzej\u00edt ze zkou\u0161en\u00ed skute\u010dn\u00e9ho spoje, nikoli z klasifikace p\u0159\u00eddavn\u00e9ho kovu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4047 jako sva\u0159ovac\u00ed dr\u00e1t (ER4047)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Podle AWS A5.10 se stejn\u00e1 slitina pou\u017e\u00edv\u00e1 jako ER4047 pro GTAW a GMAW.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kde je dobrou volbou:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Opravy odlitk\u016f z hlin\u00edku a slitin pro odlitky, jako je A356 \u2014 vysok\u00fd obsah k\u0159em\u00edku odpov\u00edd\u00e1 z\u00e1kladn\u00edmu kovu a sni\u017euje p\u00f3rovitost.<\/li>\n\n\n\n<li>Tenkost\u011bnn\u00e9 a tepeln\u011b citliv\u00e9 sestavy, kde ni\u017e\u0161\u00ed solidus sni\u017euje deformace.<\/li>\n\n\n\n<li>Spoje z 6xxx n\u00e1chyln\u00e9 k prask\u00e1n\u00ed, kde \u00fazk\u00fd interval tuhnut\u00ed pracuje ve v\u00e1\u0161 prosp\u011bch.<\/li>\n\n\n\n<li>V\u00fdm\u011bn\u00edky tepla, kondenz\u00e1tory, trubky klimatizace a pr\u00e1ce na chladi\u010d\u00edch \u2014 stejn\u00e9 kapil\u00e1rn\u00ed chov\u00e1n\u00ed, kter\u00e9 z n\u011bj \u010din\u00ed dobr\u00fd p\u00e1jec\u00ed p\u0159\u00eddavn\u00fd kov, mu pom\u00e1h\u00e1 sm\u00e1\u010det t\u011bsn\u00e9 ulo\u017een\u00ed.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kde 4043 v\u00edt\u011bz\u00ed:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jak\u00fdkoli spoj, kter\u00fd bude eloxov\u00e1n a barevn\u011b slad\u011bn. Svarov\u00fd kov s vysok\u00fdm obsahem k\u0159em\u00edku se eloxov\u00e1n\u00edm zbarv\u00ed do \u0161edo\u010derna, co\u017e neodpov\u00edd\u00e1 z\u00e1kladn\u00edmu kovu; 4043 poskytuje mnohem bli\u017e\u0161\u00ed shodu.<\/li>\n\n\n\n<li>Univerz\u00e1ln\u00ed sva\u0159ov\u00e1n\u00ed 6xxx, kde citlivost na prask\u00e1n\u00ed nen\u00ed rozhoduj\u00edc\u00edm faktorem. ER4043 je v\u00fdchoz\u00ed p\u0159\u00eddavn\u00fd kov pro 6061 ve v\u011bt\u0161in\u011b d\u00edlen a je obvykle levn\u011bj\u0161\u00ed a dostupn\u011bj\u0161\u00ed.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kde nepat\u0159\u00ed ani jeden:<\/strong> sva\u0159ov\u00e1n\u00ed z\u00e1kladn\u00edch kov\u016f 5xxx. Pou\u017eijte tam 5356 (viz srovn\u00e1n\u00ed n\u00ed\u017ee).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pravidlo solidu z\u00e1kladn\u00edho kovu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Toto je kontrola, kter\u00e1 rozhoduje o v\u011bt\u0161in\u011b \u00faloh s 4047, a je to ta, kter\u00e1 se nej\u010dast\u011bji p\u0159eskakuje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u00e1jec\u00ed p\u0159\u00eddavn\u00fd kov mus\u00ed b\u00fdt zcela tekut\u00fd, zat\u00edmco z\u00e1kladn\u00ed kov je st\u00e1le zcela pevn\u00fd. To znamen\u00e1, \u017ee <strong>solidus<\/strong> z\u00e1kladn\u00edho kovu mus\u00ed le\u017eet nad <strong>liquidem<\/strong> p\u0159\u00eddavn\u00e9ho kovu (582 \u00b0C pro 4047) s pracovn\u00ed rezervou, ne jen n\u011bkolik stup\u0148\u016f nad n\u00edm. V praxi c\u00edlte na rezervu alespo\u0148 25\u201330 \u00b0C.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Nobelmetal<\/td><td>Solidus (\u00b0C, typick\u00e9 publikovan\u00e9 hodnoty)<\/td><td>P\u00e1jen\u00ed s 4047<\/td><\/tr><tr><td>1100<\/td><td>~646<\/td><td>Pohodln\u00e1 rezerva<\/td><\/tr><tr><td>3003<\/td><td>~643<\/td><td>Pohodln\u00e1 rezerva \u2014 standardn\u00ed j\u00e1drov\u00e1 slitina pro CAB<\/td><\/tr><tr><td>6063<\/td><td>~615<\/td><td>Provediteln\u00e9, ale \u00fazk\u00e9 okno<\/td><\/tr><tr><td>6061<\/td><td>~582<\/td><td><strong>\u017d\u00e1dn\u00e1 rezerva \u2014 nep\u00e1jet<\/strong><\/td><\/tr><tr><td>7075<\/td><td>~477<\/td><td><strong>P\u0159\u00eddavn\u00fd kov by se roztavil po z\u00e1kladn\u00edm kovu<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0158\u00e1dek 6061 je ten, kter\u00fd lidi zasko\u010d\u00ed. 6061 je b\u011b\u017en\u011b uv\u00e1d\u011bn jako p\u00e1jiteln\u00e1 z\u00e1kladn\u00ed slitina, ale jeho solidus je 582 \u00b0C \u2014 stejn\u00e1 teplota jako liquidus 4047. Neexistuje \u017e\u00e1dn\u00e9 procesn\u00ed okno. P\u0159idejte obsah ho\u0159\u010d\u00edku v 6061, kter\u00fd komplikuje \u0159\u00edzen\u00ed tavidla a atmosf\u00e9ry, a p\u00e1jen\u00ed 6061 v peci se st\u00e1v\u00e1 nepraktick\u00fdm. Pokud je sou\u010d\u00e1st z 6061 a je t\u0159eba ji spojit, specifikujte sva\u0159ov\u00e1n\u00ed s 4043 nebo 5356 nam\u00edsto p\u00e1jen\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hodnoty solidu v\u00fd\u0161e jsou typick\u00e9 publikovan\u00e9 hodnoty. P\u0159ed nastaven\u00edm pecn\u00edho cyklu ov\u011b\u0159te skute\u010dnou hodnotu pro \u0161ar\u017ei, kterou p\u00e1j\u00edte, z atestu z\u00e1kladn\u00edho kovu od v\u00fdrobce.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4047 vs 4043 vs 5356<\/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\/2026\/10\/4047-filler.webp\" alt=\"4047-p\u0159\u00eddavn\u00fd-materi\u00e1l\" class=\"wp-image-10672\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-filler.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-filler-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-filler-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-filler-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-filler-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>V\u00fdpl\u0148<\/td><td>K\u0159em\u00edk \/ legov\u00e1n\u00ed<\/td><td>Tavic\u00ed chov\u00e1n\u00ed<\/td><td>Vyberte jej pro<\/td><td>Vyhn\u011bte se mu pro<\/td><\/tr><tr><td><strong><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-4047\/\" data-type=\"product\" data-id=\"8301\">4047<\/a><\/strong><\/td><td>11\u201313 % Si<\/td><td>577\u2013582 \u00b0C, mazlav\u00e9 p\u00e1smo ~5 \u00b0C<\/td><td>P\u00e1jen\u00ed s t\u011bsnou sp\u00e1rou, t\u011bsn\u00e9 v\u00fdm\u011bn\u00edky tepla, hlin\u00edkov\u00e9 odlitky, tenkost\u011bnn\u00e9 6xxx<\/td><td>Eloxovan\u00e9 a barevn\u011b slad\u011bn\u00e9 svary; \u0161irok\u00e9 sp\u00e1ry spoj\u016f<\/td><\/tr><tr><td><strong><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-4043\/\" data-type=\"product\" data-id=\"8585\">4043<\/a><\/strong><\/td><td>4,5\u20136,0 % Si<\/td><td>P\u0159ibli\u017en\u011b 573\u2013630 \u00b0C, \u0161irok\u00fd ka\u0161ovit\u00fd rozsah<\/td><td>Univerz\u00e1ln\u00ed sva\u0159ov\u00e1n\u00ed 6xxx, svary, kter\u00e9 budou eloxov\u00e1ny<\/td><td>T\u011bsn\u00e9 kapil\u00e1rn\u00ed p\u00e1jen\u00ed \u2014 p\u0159\u00edli\u0161 l\u00edn\u00e9 p\u0159es sp\u00e1ru<\/td><\/tr><tr><td><strong><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-5356\/\" data-type=\"product\" data-id=\"8837\">5356<\/a><\/strong><\/td><td>4,5\u20135,51 % hm. Mg<\/td><td>Vy\u0161\u0161\u00ed teplota taven\u00ed, \u017e\u00e1dn\u00e9 kapil\u00e1rn\u00ed p\u016fsoben\u00ed<\/td><td>Sva\u0159ov\u00e1n\u00ed z\u00e1kladn\u00edch kov\u016f 5xxx; n\u00e1mo\u0159n\u00ed provoz<\/td><td>P\u00e1jen\u00ed \u2014 jedn\u00e1 se o sva\u0159ovac\u00ed p\u0159\u00eddavn\u00fd materi\u00e1l, nikoli o p\u00e1jec\u00ed p\u0159\u00eddavn\u00fd materi\u00e1l<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Kr\u00e1tk\u00e1 verze: 4047 a 4043 si navz\u00e1jem konkuruj\u00ed; 5356 m\u00e1 jin\u00e9 ur\u010den\u00ed. Viz n\u00e1\u0161 <a href=\"https:\/\/premiumalu.com\/cs\/tipy-odborniku-pro-zvladnuti-hliniku-4043\/\">pr\u016fvodce hlin\u00edkem 4043<\/a> pro stranu k\u0159em\u00edkov\u00e9ho p\u0159\u00eddavn\u00e9ho materi\u00e1lu a n\u00e1\u0161 <a href=\"https:\/\/premiumalu.com\/cs\/konecny-pruvodce-specifikacemi-hliniku-5356\/\">pr\u016fvodce hlin\u00edkem 5356<\/a> pro stranu ho\u0159\u010d\u00edkov\u00e9ho p\u0159\u00eddavn\u00e9ho materi\u00e1lu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Go \/ No-Go<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pou\u017e\u00edt \u2014 pou\u017eijte 4047, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u00e1jen\u00ed s t\u011bsnou mezerou s po\u017eadavkem na t\u011bsnost proti \u00faniku: j\u00e1dra chladi\u010d\u016f, kondenz\u00e1tory, v\u00fdparn\u00edky, mezichladi\u010de, deskov\u00e9 v\u00fdm\u011bn\u00edky tepla.<\/li>\n\n\n\n<li>P\u00e1jen\u00ed CAB nebo vakuov\u00e9 p\u00e1jen\u00ed, p\u0159\u00edpadn\u011b p\u00e1jen\u00ed plamenem, se z\u00e1kladn\u00edm kovem, jeho\u017e solidus s re\u00e1lnou rezervou p\u0159ekra\u010duje 582 \u00b0C \u2014 1xxx a 3xxx jsou bezpe\u010dn\u00e9 skupiny.<\/li>\n\n\n\n<li>Sva\u0159ov\u00e1n\u00ed odlitk\u016f z hlin\u00edku, tenkost\u011bnn\u00fdch 6xxx nebo spoj\u016f n\u00e1chyln\u00fdch k prask\u00e1n\u00ed, kde ER4043 p\u016fsobil pot\u00ed\u017ee.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>No-Go \u2014 zvolte n\u011bco jin\u00e9ho, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Spoj bude eloxov\u00e1n a mus\u00ed odpov\u00eddat barv\u011b z\u00e1kladn\u00edho kovu. Pou\u017eijte 4043.<\/li>\n\n\n\n<li>Z\u00e1kladn\u00ed kov je 6061 nebo t\u0159\u00edda 7xxx a procesem je p\u00e1jen\u00ed. Neexistuje rezerva solidu. M\u00edsto toho sva\u0159ujte, s 4043 pro 6xxx nebo 5356 pro 5xxx.<\/li>\n\n\n\n<li>Mezera spoje p\u0159esahuje p\u0159ibli\u017en\u011b 0,2 mm. P\u0159\u00eddavn\u00fd materi\u00e1l vyte\u010de d\u0159\u00edve, ne\u017e ztuhne \u2014 pou\u017eijte 4043 nebo p\u0159edem vlo\u017een\u00fd prefabrik\u00e1t dimenzovan\u00fd na spoj.<\/li>\n\n\n\n<li>Z\u00e1kladn\u00ed kov je 5xxx a procesem je sva\u0159ov\u00e1n\u00ed. Pou\u017eijte 5356.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Aplikace<\/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\/2026\/10\/4047-applications.webp\" alt=\"4047-aplikace\" class=\"wp-image-10673\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-applications.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-applications-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-applications-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-applications-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/4047-applications-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Automobilov\u00fd pr\u016fmysl<\/strong> \u2014 j\u00e1dra chladi\u010d\u016f a topen\u00ed, chladi\u010de plnic\u00edho vzduchu, kondenz\u00e1tory a v\u00fdparn\u00edky klimatizace<\/li>\n\n\n\n<li><strong>HVAC<\/strong> \u2014 c\u00edvky hlin\u00edkov\u00fdch v\u00fdm\u011bn\u00edk\u016f tepla, spoje chladic\u00edho okruhu<\/li>\n\n\n\n<li><strong>Chlazen\u00ed<\/strong> \u2014 deskov\u00e9 sestavy v\u00fdparn\u00edk\u016f a kondenz\u00e1tor\u016f<\/li>\n\n\n\n<li><strong>Letectv\u00ed a kosmonautika<\/strong> \u2014 hlin\u00edkov\u00e9 v\u00fdm\u011bn\u00edky tepla, olejov\u00e9 chladi\u010de chlazen\u00e9 palivem, v\u00fdm\u011bn\u00edky tepla syst\u00e9m\u016f environment\u00e1ln\u00ed kontroly<\/li>\n\n\n\n<li><strong>Opravy odlitk\u016f z hlin\u00edku<\/strong> \u2014 odlitky a kryty, s pou\u017eit\u00edm ER4047 jako sva\u0159ovac\u00edho dr\u00e1tu<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">4047 spl\u0148uje dv\u011b normy sou\u010dasn\u011b: AWS A5.8 BAlSi-4 pro p\u00e1jen\u00ed a AWS A5.10 ER4047 pro sva\u0159ov\u00e1n\u00ed TIG a MIG. Zvolte jej, kdy\u017e je spoj t\u011bsn\u00fd, t\u011bsn\u00fd proti \u00faniku nebo n\u00e1chyln\u00fd k prask\u00e1n\u00ed, a zvolte 4043, kdy\u017e m\u00e1 b\u00fdt svar eloxov\u00e1n a barevn\u011b slad\u011bn, 5356, kdy\u017e je z\u00e1kladn\u00ed kov 5xxx. Tvrd\u00fdm limitem je solidus z\u00e1kladn\u00edho kovu \u2014 pokud s re\u00e1lnou rezervou nep\u0159ekra\u010duje 582 \u00b0C, p\u00e1jen\u00ed nep\u0159ich\u00e1z\u00ed v \u00favahu a spoj mus\u00ed b\u00fdt sva\u0159ov\u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dod\u00e1v\u00e1me <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-4047\/\">p\u00e1jec\u00ed a sva\u0159ovac\u00ed dr\u00e1t 4047<\/a>, ty\u010d a f\u00f3lii, s pr\u016fm\u011bry a hmotnostmi c\u00edvek na m\u00edru vyr\u00e1b\u011bn\u00fdmi podle va\u0161\u00ed specifikace. Ka\u017ed\u00e1 objedn\u00e1vka je expedov\u00e1na s MTC a dodac\u00ed lh\u016fty na m\u00edru \u010din\u00ed 10\u201360 dn\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Po\u0161lete n\u00e1m formu p\u0159\u00eddavn\u00e9ho materi\u00e1lu, pr\u016fm\u011br a z\u00e1kladn\u00ed kov a my potvrd\u00edme dostupnost nebo term\u00edn zak\u00e1zkov\u00e9 v\u00fdroby.<\/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>Lze 4047 dodat jako prefabrik\u00e1ty, krou\u017eky nebo v konkr\u00e9tn\u00edm pr\u016fm\u011bru dr\u00e1tu?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ano. 4047 se dod\u00e1v\u00e1 jako dr\u00e1t, ty\u010d, f\u00f3lie a p\u00e1s, a tvary prefabrik\u00e1t\u016f se vyr\u00e1b\u011bj\u00ed podle geometrie va\u0161eho spoje. Uve\u010fte formu, pr\u016fm\u011br nebo tlou\u0161\u0165ku a hmotnost c\u00edvky nebo kusu a polo\u017eka bude nacen\u011bna podle toho, nikoli podle katalogov\u00e9 velikosti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Jakou dodac\u00ed lh\u016ftu a minim\u00e1ln\u00ed objednac\u00ed mno\u017estv\u00ed m\u00e1m u p\u0159\u00eddavn\u00e9ho materi\u00e1lu 4047 o\u010dek\u00e1vat?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zak\u00e1zky s n\u00edzk\u00fdm MOQ jsou podporov\u00e1ny pro nestandardn\u00ed velikosti, s typick\u00fdmi dodac\u00edmi lh\u016ftami na m\u00edru 10\u201360 dn\u00ed. Standardn\u00ed pr\u016fm\u011bry dr\u00e1tu jsou obvykle dostupn\u00e9 ze skladu; tlou\u0161\u0165ka f\u00f3lie a tvary prefabrik\u00e1t\u016f se vyr\u00e1b\u011bj\u00ed na zak\u00e1zku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lze 4047 pou\u017e\u00edt k p\u00e1jen\u00ed 6061?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ne. Liquidus 4047 a solidus 6061 se podle jejich \u0159\u00edd\u00edc\u00edch norem st\u00fdkaj\u00ed p\u0159i stejn\u00fdch 582 \u00b0C. Neexistuje teplota, p\u0159i n\u00ed\u017e by p\u0159\u00eddavn\u00fd materi\u00e1l tekl, zat\u00edmco 6061 z\u016fst\u00e1v\u00e1 pevn\u00fd, proto 6061 spojujte sva\u0159ov\u00e1n\u00edm s 4043, nebo p\u0159ejd\u011bte na z\u00e1kladn\u00ed kov 1xxx nebo 3xxx, pokud je p\u00e1jen\u00ed pevn\u011b stanoveno.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Jak\u00e9 dokumenty doprov\u00e1zej\u00ed objedn\u00e1vku 4047?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Osv\u011bd\u010den\u00ed o zkou\u0161ce z v\u00fdroby (mill test certificate) s chemick\u00fdmi a mechanick\u00fdmi v\u00fdsledky pro danou \u0161ar\u017ei. Pokud procesn\u00ed kvalifikace z\u00e1kazn\u00edka vy\u017eaduje nez\u00e1visl\u00fd d\u016fkaz, jsou chemick\u00e9 a mechanick\u00e9 zpr\u00e1vy SGS k dispozici na vy\u017e\u00e1d\u00e1n\u00ed za p\u0159\u00edplatek.<\/p>","protected":false},"excerpt":{"rendered":"<p>4047 is an aluminum-silicon filler alloy carrying 11\u201313% silicon. It is not a structural wrought grade \u2014 you do not build a frame out of it. You buy it to join other aluminum parts, and it does that job in two different processes under two different standards. 4047 is specified in two roles under two [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10668,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"1. 4047 Aluminum: Brazing Filler and Welding Wire","_seopress_titles_desc":"4047 aluminum holds two standards at once: AWS A5.8 brazing filler and AWS A5.10 welding wire. See the base metal solidus rule that decides where it works.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[185],"tags":[],"class_list":["post-8629","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-4000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8629","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/comments?post=8629"}],"version-history":[{"count":3,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8629\/revisions"}],"predecessor-version":[{"id":10674,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8629\/revisions\/10674"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10668"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=8629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=8629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=8629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}