{"id":1740,"date":"2025-07-10T20:40:39","date_gmt":"2025-07-10T20:40:39","guid":{"rendered":"https:\/\/www.diecastingschina.com\/?p=1740"},"modified":"2025-07-10T20:41:19","modified_gmt":"2025-07-10T20:41:19","slug":"typy-zinkovani","status":"publish","type":"post","link":"https:\/\/www.diecastingschina.com\/cs\/typy-zinkovani\/","title":{"rendered":"Typy zinkov\u00e1n\u00ed"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfRQpUGG4xHycFxtc_4bmlmsFrJ03P71WJEeUG2tVnvUZ8ZCTO1MIZoAN8vXgOxKEW1YPfjcfUXjexNQu5dNUVNAXCyN9rd8WeQzROQJNAh8z2aQBrct4DxCy-n-ryCLZ2U6Do-SWSXe7lBebpTc90?key=rMsziP-ChMrtNu0OESolrw\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00e1n\u00ed je metoda povrchov\u00e9 \u00fapravy, kter\u00e1 se celosv\u011btov\u011b roz\u0161\u00ed\u0159ila jako zp\u016fsob povrchov\u00e9 \u00fapravy kov\u016f, p\u0159edev\u0161\u00edm oceli a \u017eeleza, a krom\u011b zlep\u0161en\u00ed jejich vzhledu zabra\u0148uje korozi. Toho se dosahuje galvanick\u00fdm pokoven\u00edm tenkou vrstvou zinku, kter\u00e1 vytv\u00e1\u0159\u00ed bari\u00e9ru chr\u00e1n\u00edc\u00ed z\u00e1kladn\u00ed kov p\u0159ed klimatick\u00fdmi faktory, jako je vlhkost a kysl\u00edk. Krom\u011b toho je zinek tak\u00e9 ob\u011btav\u00fd a rezav\u00ed m\u00edsto kovu pod n\u00edm, co\u017e je n\u00e1kladov\u011b efektivn\u00ed a hospod\u00e1rn\u00fd zp\u016fsob ochrany proti korozi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00e1n\u00ed se v pr\u016fb\u011bhu desetilet\u00ed vyv\u00edjelo tak, aby vyhovovalo m\u011bn\u00edc\u00edm se pot\u0159eb\u00e1m v\u0161ech typ\u016f pr\u016fmyslov\u00fdch odv\u011btv\u00ed, jako je automobilov\u00fd, leteck\u00fd a kosmick\u00fd pr\u016fmysl, elektronika, stavebnictv\u00ed a spot\u0159ebn\u00ed zbo\u017e\u00ed. Vzniklo tak mnoho druh\u016f zinkov\u00e1n\u00ed s r\u016fzn\u00fdm slo\u017een\u00edm, povrchovou \u00fapravou, odolnost\u00ed proti korozi a estetick\u00fdmi vlastnostmi. Jedn\u00e1 se o \u010dir\u00e9 nebo modr\u00e9 zinkov\u00e1n\u00ed a n\u011bkter\u00e9 speciality, jako je zinkov\u00e9 niklov\u00e1n\u00ed, \u010dern\u00e9 zinkov\u00e1n\u00ed, \u017elut\u00e9 zinkov\u00e1n\u00ed a zlat\u00e9 zinkov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u0161echny typy jsou navr\u017eeny s ohledem na konkr\u00e9tn\u00ed aplikace. M\u016f\u017ee se jednat o pou\u017eit\u00ed zinkov\u00e9ho niklov\u00e1n\u00ed, kter\u00e9 zaji\u0161\u0165uje vy\u0161\u0161\u00ed ochranu proti korozi ve vysoce nam\u00e1han\u00fdch aplikac\u00edch, nebo o \u010dern\u00e9 zinkov\u00e1n\u00ed, kter\u00e9 zaji\u0161\u0165uje n\u00edzkoprofilovou, nereflexn\u00ed povrchovou \u00fapravu. \u017dlut\u00fd zinek poskytuje snadno identifikovateln\u00fd zlat\u00fd povrch s p\u0159im\u011b\u0159enou ochranou a zlat\u00e9 zinkov\u00e1n\u00ed je levnou n\u00e1hra\u017ekou vyu\u017e\u00edvaj\u00edc\u00ed vzhledu mosazi nebo zlata.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cl\u00e1nek se zase bl\u00ed\u017ee zab\u00fdv\u00e1 touto \u0161k\u00e1lou typ\u016f zinkov\u00e1n\u00ed, porovn\u00e1v\u00e1 jejich vlastnosti, v\u00fdhody a nev\u00fdhody a jejich pou\u017eit\u00ed. Jako v\u00fdrobce, konstrukt\u00e9r nebo jen \u010dlov\u011bk, kter\u00fd se zaj\u00edm\u00e1 o nauku o materi\u00e1lech, je nezbytn\u00e9, abyste se s t\u011bmito rozd\u00edly sezn\u00e1mili a vybrali si ve sv\u00e9m p\u0159\u00edpad\u011b nejvhodn\u011bj\u0161\u00ed pokoven\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Z\u00e1klady zinkov\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfdXe7__zlvFYjVJuaKzJ1OlN31LlhE4NeQdA2plwpLJkPWwE_j_YUIwJjVAfGZ0WQIqAXf_wbuULVkDvp69b13CiUekpyozuqZ8Mv0zZzPBnaXbVts6ocdRkj3hdjjk2KCvWizwnpRB5R7aM-6lNU?key=rMsziP-ChMrtNu0OESolrw\" alt=\"\u00da\u010dinky zinkov\u00e1n\u00ed na spojovac\u00ed materi\u00e1l | Bayou City Bolt &amp; Supply\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Co je zinkov\u00e1n\u00ed?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00e1n\u00ed je druh technologie galvanick\u00e9ho pokovov\u00e1n\u00ed, kdy se na vrchn\u00ed \u010d\u00e1st kovov\u00e9ho d\u00edlu nebo p\u0159edm\u011btu - obvykle oceli, \u017eeleza nebo slitiny m\u011bdi - nanese tenk\u00e1 vrstva zinkov\u00e9ho povlaku. Proces se prov\u00e1d\u00ed elektrodepozic\u00ed, kdy se kovov\u00e1 sou\u010d\u00e1st pono\u0159\u00ed do roztoku s p\u0159\u00edtomn\u00fdmi ionty zinku a proch\u00e1z\u00ed j\u00edm elektrick\u00fd proud. N\u00e1sledkem toho se na povrchu kovu vytvo\u0159\u00ed rovnom\u011brn\u00e1 p\u0159ilnav\u00e1 vrstva \u010d\u00e1stic zinku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00e1n\u00ed chr\u00e1n\u00ed kovov\u00e9 substr\u00e1ty dv\u011bma z\u00e1kladn\u00edmi mechanismy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bari\u00e9rov\u00e1 ochrana<\/strong>: Zinkov\u00e1 vrstva fyzicky odd\u011bluje povrch kovu od korozivn\u00edch prvk\u016f, jako je voda, kysl\u00edk a soli.<\/li>\n\n\n\n<li><strong>Katodick\u00e1 (ob\u011btovan\u00e1) ochrana<\/strong>: Proto\u017ee je zinek elektrochemicky aktivn\u011bj\u0161\u00ed ne\u017e ocel, koroduje jako prvn\u00ed, \u010d\u00edm\u017e chr\u00e1n\u00ed z\u00e1kladn\u00ed kov pod n\u00edm p\u0159ed koroz\u00ed nebo oxidac\u00ed.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tlou\u0161\u0165ka zinkov\u00e9 vrstvy se obvykle pohybuje v rozmez\u00ed 1 a\u017e 25 mikrometr\u016f (nebo 40 a\u017e 1 000 mikroinch\u016f) v z\u00e1vislosti na zam\u00fd\u0161len\u00e9 aplikaci a po\u017eadavc\u00edch na odolnost proti korozi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Standardn\u00ed proces zinkov\u00e1n\u00ed<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Proces zinkov\u00e1n\u00ed obvykle zahrnuje n\u00e1sleduj\u00edc\u00ed kroky:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u010ci\u0161t\u011bn\u00ed a odma\u0161\u0165ov\u00e1n\u00ed<\/strong>- T\u00edmto zp\u016fsobem se povrch \u010dist\u00ed od olej\u016f, ne\u010distot a kontaminant\u016f.<\/li>\n\n\n\n<li><strong>Nakl\u00e1d\u00e1n\u00ed\/lept\u00e1n\u00ed<\/strong>- Odstran\u00ed se oxidy a kov je p\u0159ipraven k pokoven\u00ed.<\/li>\n\n\n\n<li><strong>Pono\u0159en\u00ed do zinku<\/strong>- Jedn\u00e1 se o techniku prov\u00e1d\u011bnou v l\u00e1zni kysel\u00e9ho nebo alkalick\u00e9ho zinku.<\/li>\n\n\n\n<li><strong>Oplachov\u00e1n\u00ed a pasivace<\/strong>-<strong> <\/strong>Zlep\u0161uje odolnost proti korozi a fixuje povrchovou \u00fapravu.<\/li>\n\n\n\n<li><strong>Su\u0161en\u00ed a manipulace<\/strong>- Posledn\u00ed f\u00e1ze kontroly; zde m\u016f\u017ee doj\u00edt k ut\u011bsn\u011bn\u00ed nebo vrchn\u00edm n\u00e1t\u011br\u016fm.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Pro\u010d si vybrat zinkov\u00e1n\u00ed?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e1kladov\u011b efektivn\u00ed ochrana kov\u016f ve velk\u00e9m m\u011b\u0159\u00edtku<\/li>\n\n\n\n<li>Lehk\u00fd povlak ide\u00e1ln\u00ed pro v\u00fdrobu<\/li>\n\n\n\n<li>Recyklovateln\u00e9 a ekologicky \u0161etrn\u00e9<\/li>\n\n\n\n<li>Jednotn\u00e1 estetick\u00e1 povrchov\u00e1 \u00faprava (vhodn\u00e1 pro varianty s \u010dern\u00fdm, \u017elut\u00fdm nebo zlat\u00fdm zinkem)<\/li>\n\n\n\n<li>Kompatibiln\u00ed s robotick\u00fdmi pokovovac\u00edmi syst\u00e9my a vysokorychlostn\u00edmi v\u00fdrobn\u00edmi linkami.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00e1n\u00ed je d\u00edky sv\u00e9 v\u0161estrannosti a v\u00fdkonnosti pom\u011brn\u011b dynamick\u00e9, a proto existuje specializovan\u00fd zinek, kter\u00fd je specifick\u00fd pro sou\u010dasn\u00e9 stroj\u00edrensk\u00e9 po\u017eadavky.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pokovov\u00e1n\u00ed zinkem a niklem (ZnNi)<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfUmL6iRdrbiln7o6YwdMKgs9qcIhKiyfQuewGc4XgJwDu5AsdiLCQAF4kxwHCmBKmCvCMcW5FoBfQKHbzoVKbVBUfyyTGCV-Aucf4zbU6b7rUMhdDjzn55VxbM1EZMPicFH1PfRvvbvvoRVRCcWA?key=rMsziP-ChMrtNu0OESolrw\" alt=\"Co by m\u011bli konstrukt\u00e9\u0159i v\u011bd\u011bt o zinkovo-niklov\u00fdch povlac\u00edch | Konstrukce stroj\u016f\" style=\"width:800px;height:auto\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Co je zinkovo-niklov\u00e9 pokovov\u00e1n\u00ed?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkochlorid (ZnNi) je vysoce v\u00fdkonn\u00fd slitinov\u00fd povlak, kter\u00fd se skl\u00e1d\u00e1 ze zinku s regulovan\u00fdm obsahem niklu, obvykle 12-15 %. Na podklad se nan\u00e1\u0161\u00ed ve form\u011b hust\u00e9, rovnom\u011brn\u00e9 a vysoce korozivzdorn\u00e9 vrstvy pomoc\u00ed elektrodepozice t\u00e9to slitiny ve speci\u00e1ln\u00edch alkalick\u00fdch nebo kysel\u00fdch elektrolytov\u00fdch l\u00e1zn\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P\u0159ehled slo\u017een\u00ed:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Zinek<\/strong>: 85-88%<\/li>\n\n\n\n<li><strong>Nikl<\/strong>: 12-15%<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nikl je d\u016fle\u017eitou slo\u017ekou povlaku, kter\u00e1 zlep\u0161uje jeho v\u00fdkonnostn\u00ed vlastnosti t\u00edm, \u017ee zvy\u0161uje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tvrdost<\/strong><\/li>\n\n\n\n<li><strong>Odolnost proti korozi<\/strong><\/li>\n\n\n\n<li><strong>Tepeln\u00e1 stabilita<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkovo-niklov\u00e9 pokoven\u00ed m\u00e1 obvykle kone\u010dnou povrchovou \u00fapravu st\u0159\u00edb\u0159it\u011b b\u00edl\u00e9, jemn\u00e9 a ml\u00e9\u010dn\u011b matn\u00e9 barvy. Vzhledem k tomu, \u017ee ZnNi pokoven\u00ed nen\u00ed esteticky zam\u011b\u0159eno, uplatn\u00ed se sp\u00ed\u0161e v praktick\u00fdch p\u0159\u00edpadech, kdy je d\u016fle\u017eit\u00e1 del\u0161\u00ed trvanlivost.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vlastnosti a v\u00fdkon<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Niklov\u00e1n\u00ed zinkem je d\u00edky sv\u00fdm v\u00fdjime\u010dn\u00fdm mechanick\u00fdm a antikorozn\u00edm vlastnostem v\u0161eobecn\u011b pova\u017eov\u00e1no za \u0161pi\u010dkovou volbu mezi povlaky na b\u00e1zi zinku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kl\u00ed\u010dov\u00e9 vlastnosti:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Odolnost proti korozi<\/strong>:<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ZnNi m\u016f\u017ee poskytnout v\u00edce ne\u017e 1 000 hodin odolnosti proti \u010derven\u00e9 rzi p\u0159i testech solnou mlhou (ASTM B117), \u010d\u00edm\u017e v\u00fdrazn\u011b p\u0159ekon\u00e1v\u00e1 standardn\u00ed zinkov\u00e9 nebo zinko-chrom\u00e1tov\u00e9 povrchov\u00e9 \u00fapravy.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tvrdost a odolnost proti opot\u0159eben\u00ed<\/strong>:<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Povlaky ZnNi vykazuj\u00ed tvrdost 350-500 HV ve srovn\u00e1n\u00ed se zhruba 150 HV u povlak\u016f z \u010dist\u00e9ho zinku. D\u00edky tomu jsou odoln\u011bj\u0161\u00ed v\u016f\u010di ot\u011bru a mechanick\u00e9mu opot\u0159eben\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Teplotn\u00ed stabilita:<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ZnNi se dob\u0159e osv\u011bd\u010duje v prost\u0159ed\u00ed se zv\u00fd\u0161enou teplotou - je funk\u010dn\u00ed a\u017e do 300 \u00b0C a \u00fa\u010dinn\u00fd v korozivn\u00edm prost\u0159ed\u00ed a\u017e do 180 \u00b0C, tak\u017ee je ide\u00e1ln\u00ed pro pou\u017eit\u00ed v automobilov\u00e9m a leteck\u00e9m pr\u016fmyslu.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Adheze a odolnost proti \u00fanav\u011b:<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vynikaj\u00edc\u00ed p\u0159ilnavost k z\u00e1kladn\u00edmu kovu pom\u00e1h\u00e1 sni\u017eovat riziko odlupov\u00e1n\u00ed nebo odlupov\u00e1n\u00ed p\u0159i mechanick\u00e9m nam\u00e1h\u00e1n\u00ed. ZnNi tak\u00e9 minimalizuje vznik mikrotrhlin, kter\u00e9 mohou v\u00e9st k \u00fanavov\u00fdm poruch\u00e1m.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Odolnost proti vod\u00edkov\u00e9 k\u0159ehkosti:<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Spr\u00e1vn\u00e9 tepeln\u00e9 zpracov\u00e1n\u00ed po pokoven\u00ed (bake-out) sni\u017euje absorpci vod\u00edku b\u011bhem pokovov\u00e1n\u00ed - \u010dast\u00fd probl\u00e9m p\u0159i pokovov\u00e1n\u00ed vysokopevnostn\u00edch ocel\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Hlavn\u00ed body procesu<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Proces pokovov\u00e1n\u00ed ZnNi je vzhledem ke slo\u017een\u00ed slitiny a chemii l\u00e1zn\u011b slo\u017eit\u011bj\u0161\u00ed ne\u017e tradi\u010dn\u00ed pokovov\u00e1n\u00ed zinkem a vy\u017eaduje p\u0159\u00edsnou kontrolu procesu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kl\u00ed\u010dov\u00e9 prvky procesu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Typ vany<\/strong>: Obvykle se d\u00e1v\u00e1 p\u0159ednost alkalick\u00fdm l\u00e1zn\u00edm pro vysoce p\u0159esnou kontrolu a \u0161etrnost k \u017eivotn\u00edmu prost\u0159ed\u00ed, a\u010dkoli pro rychlej\u0161\u00ed depozici lze pou\u017e\u00edt l\u00e1zn\u011b na b\u00e1zi kyselin.<\/li>\n\n\n\n<li><strong>Kontrola niklu<\/strong>: P\u0159esn\u00e1 regulace obsahu niklu (v rozmez\u00ed 12-15%) je rozhoduj\u00edc\u00ed pro dosa\u017een\u00ed optim\u00e1ln\u00ed rovnov\u00e1hy mezi korozn\u00ed odolnost\u00ed a tvrdost\u00ed.<\/li>\n\n\n\n<li><strong>pH a teplota<\/strong>:\n<ul class=\"wp-block-list\">\n<li><strong>Rozsah pH<\/strong>: 9,0 a\u017e 10,5<\/li>\n\n\n\n<li><strong>Teplota<\/strong>: 50\u00b0C a\u017e 60\u00b0C<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Hustota proudu<\/strong>: St\u0159edn\u00ed a\u017e vysok\u00e1 proudov\u00e1 hustota zaji\u0161\u0165uje rovnom\u011brn\u00e9 nan\u00e1\u0161en\u00ed ve slo\u017eit\u00fdch geometri\u00edch.<\/li>\n\n\n\n<li><strong>Po l\u00e9\u010db\u011b<\/strong>: Po povlac\u00edch ZnNi \u010dasto n\u00e1sleduje \u010dir\u00e1 trojmocn\u00e1 chromanov\u00e1 pasivace a n\u011bkdy se uzav\u00edraj\u00ed vrchn\u00edmi n\u00e1t\u011bry, aby se d\u00e1le zv\u00fd\u0161ila korozn\u00ed odolnost.<\/li>\n\n\n\n<li><strong>Kontrola kvality<\/strong>: Pr\u016fb\u011b\u017en\u00e9 sledov\u00e1n\u00ed slo\u017een\u00ed l\u00e1zn\u011b, pH, teploty a pokovovac\u00edho proudu je nezbytn\u00e9 pro udr\u017een\u00ed konzistence a v\u00fdkonu n\u00e1nosu.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>V\u00fdhody<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkovo-niklov\u00e9 pokovov\u00e1n\u00ed nab\u00edz\u00ed n\u011bkolik v\u00fdkonnostn\u00edch a provozn\u00edch v\u00fdhod, kter\u00e9 z n\u011bj \u010din\u00ed preferovanou volbu v mnoha pr\u016fmyslov\u00fdch aplikac\u00edch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vynikaj\u00edc\u00ed odolnost proti korozi<\/strong> - V\u00fdrazn\u011b p\u0159ekon\u00e1v\u00e1 ostatn\u00ed n\u00e1t\u011bry na b\u00e1zi zinku v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch.<\/li>\n\n\n\n<li><strong>Vysok\u00e1 odolnost proti opot\u0159eben\u00ed<\/strong> - Zachov\u00e1v\u00e1 celistvost povrchu p\u0159i mechanick\u00e9m nam\u00e1h\u00e1n\u00ed a vibrac\u00edch.<\/li>\n\n\n\n<li><strong>\u00danavov\u00fd v\u00fdkon<\/strong> - Minimalizuje mikrotrhliny, \u010d\u00edm\u017e zvy\u0161uje \u017eivotnost sou\u010d\u00e1stek.<\/li>\n\n\n\n<li><strong>Tepeln\u00e1 odolnost<\/strong> - Odol\u00e1v\u00e1 zv\u00fd\u0161en\u00fdm teplot\u00e1m bez degradace.<\/li>\n\n\n\n<li><strong>Ekologicky kompatibiln\u00ed<\/strong> - Kompatibiln\u00ed s pasiv\u00e1ty trojmocn\u00e9ho chromu, kter\u00e9 spl\u0148uj\u00ed modern\u00ed ekologick\u00e9 p\u0159edpisy (RoHS, REACH).<\/li>\n\n\n\n<li><strong>Recyklovateln\u00e9 a n\u00e1kladov\u011b efektivn\u00ed p\u0159i velkoobjemov\u00e9m pou\u017eit\u00ed<\/strong> - Pou\u017eit\u00e9 l\u00e1zn\u011b lze regenerovat, \u010d\u00edm\u017e se sni\u017euje mno\u017estv\u00ed odpadu.<\/li>\n\n\n\n<li><strong>Jednotn\u00e9 pokryt\u00ed<\/strong> - Ide\u00e1ln\u00ed pro slo\u017eit\u00e9 d\u00edly, jako jsou spojovac\u00ed prvky, ozuben\u00e1 kola a dr\u017e\u00e1ky.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Omezen\u00ed<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Navzdory mnoha v\u00fdhod\u00e1m je pokovov\u00e1n\u00ed ZnNi spojeno s n\u011bkolika probl\u00e9my a kompromisy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vy\u0161\u0161\u00ed procesn\u00ed n\u00e1klady<\/strong> - Dra\u017e\u0161\u00ed ne\u017e standardn\u00ed zinkov\u00e1n\u00ed kv\u016fli slo\u017eit\u00e9mu chemick\u00e9mu slo\u017een\u00ed, \u00fadr\u017eb\u011b l\u00e1zn\u011b a n\u00e1klad\u016fm na p\u0159\u00edsady.<\/li>\n\n\n\n<li><strong>Vy\u017eaduje p\u0159\u00edsnou kontrolu<\/strong> - Je t\u0159eba p\u0159esn\u011b udr\u017eovat pH l\u00e1zn\u011b, koncentraci kovov\u00fdch iont\u016f a teplotu.<\/li>\n\n\n\n<li><strong>M\u00e9n\u011b dekorativn\u00ed<\/strong> - Matn\u00e1 st\u0159\u00edbrn\u00e1 povrchov\u00e1 \u00faprava je matn\u00e1 a m\u016f\u017ee se \u010dasem matovat, tak\u017ee nen\u00ed vhodn\u00e1 pro vysoce viditeln\u00e9 spot\u0159ebn\u00ed v\u00fdrobky.<\/li>\n\n\n\n<li><strong>Riziko vod\u00edkov\u00e9 k\u0159ehkosti<\/strong> - Zejm\u00e9na u ocel\u00ed s vysokou pevnost\u00ed v tahu; vy\u017eaduje vypalov\u00e1n\u00ed po desce (obvykle 2-4 hodiny p\u0159i 190-220 \u00b0C).<\/li>\n\n\n\n<li><strong>Pomalej\u0161\u00ed rychlost usazov\u00e1n\u00ed<\/strong> - V porovn\u00e1n\u00ed s procesy kysel\u00e9ho zinku, zejm\u00e9na p\u0159i pokovov\u00e1n\u00ed velk\u00fdch objem\u016f.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aplikace<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky sv\u00e9 robustnosti, <a href=\"https:\/\/www.diecastingschina.com\/cs\/sluzby-tlakoveho-liti-cina\/zinkove-tlakove-liti-cina\/\">zinek <\/a>niklov\u00e1n\u00ed se \u0161iroce pou\u017e\u00edv\u00e1 v aplikac\u00edch, kde se vy\u017eaduje dlouhodob\u00e1 odolnost proti korozi, mechanick\u00e1 pevnost a tepeln\u00e1 odolnost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kl\u00ed\u010dov\u00e1 odv\u011btv\u00ed a p\u0159\u00edpady pou\u017eit\u00ed:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Automobilov\u00fd pr\u016fmysl<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Spojovac\u00ed materi\u00e1l, brzdov\u00e9 t\u0159meny, dr\u017e\u00e1ky, palivov\u00e9 potrub\u00ed, sou\u010d\u00e1sti motoru<\/li>\n\n\n\n<li>V\u00fdrobci OEM \u010dasto vy\u017eaduj\u00ed ZnNi pro d\u00edly podvozku a hnac\u00edho \u00fastroj\u00ed kv\u016fli jeho dlouhodob\u00e9 odolnosti proti korozi.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Odv\u011btv\u00ed letectv\u00ed a kosmonautiky<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Podvozek, dr\u017e\u00e1ky motoru, spojovac\u00ed materi\u00e1l, konstruk\u010dn\u00ed dr\u017e\u00e1ky<\/li>\n\n\n\n<li>Ide\u00e1ln\u00ed pro prost\u0159ed\u00ed s vysok\u00fdm zat\u00ed\u017een\u00edm a vysok\u00fdmi teplotami.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Ropn\u00fd a plyn\u00e1rensk\u00fd pr\u016fmysl<\/strong>:\n<ul class=\"wp-block-list\">\n<li>\u0160rouben\u00ed, ventily, konektory vystaven\u00e9 slan\u00e9 vod\u011b nebo chemik\u00e1li\u00edm<\/li>\n\n\n\n<li>Odol\u00e1v\u00e1 korozivn\u00edmu vrt\u00e1n\u00ed a mo\u0159sk\u00e9mu prost\u0159ed\u00ed.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>T\u011b\u017ek\u00e1 technika a ter\u00e9nn\u00ed stroje<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Hydraulick\u00e9 d\u00edly, pouzdra, \u0161rouby ve stavebn\u00edch nebo zem\u011bd\u011blsk\u00fdch za\u0159\u00edzen\u00edch<\/li>\n\n\n\n<li>Vynikaj\u00edc\u00ed \u00fanavov\u00e9 vlastnosti p\u0159i vibrac\u00edch a zat\u011b\u017eovac\u00edch cyklech<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Elektrotechnika a elektronika<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Konektory a st\u00edn\u011bn\u00e9 kryty vy\u017eaduj\u00edc\u00ed vysokou vodivost a odolnost proti korozi.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u010cern\u00e9 zinkov\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdxxoW3HINyrVkAy2wBNDSEIrMF_ala64xWBvqzPxrKNqXAcJ_stJVVGn4mY9rh9wEP--rSrL86NeB7jl0wpLg8ruTQ5qEvKBqFFZlNQ_2IxY9hrG0VSYdI-V_aRFXbs2L9X-hG99AuoF_H2H6OZFA?key=rMsziP-ChMrtNu0OESolrw\" alt=\"Povrchov\u00e1 \u00faprava kov\u016f pro pr\u016fmyslov\u00e9 d\u00edly a spojovac\u00ed materi\u00e1ly | DIFCO\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Co je \u010dern\u00e9 zinkov\u00e1n\u00ed?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cern\u00e9 zinkov\u00e1n\u00ed je proces povrchov\u00e9 \u00fapravy, kter\u00fd kombinuje ochranu proti korozi standardn\u00edho zinkov\u00e9ho galvanick\u00e9ho pokovov\u00e1n\u00ed s v\u00fdrazn\u00fdm, \u010dern\u00fdm nebo tmav\u011b \u0161ed\u00fdm vzhledem. T\u00e9to jedine\u010dn\u00e9 povrchov\u00e9 \u00fapravy se dos\u00e1hne nanesen\u00edm \u010dern\u00e9 trojmocn\u00e9 pasiva\u010dn\u00ed vrstvy na zinkov\u00fd povlak, po n\u00ed\u017e n\u00e1sleduj\u00ed voliteln\u00e9 dodate\u010dn\u00e9 \u00fapravy, jako jsou barviva, oleje, tmely nebo laky, kter\u00e9 zlep\u0161uj\u00ed vzhled a v\u00fdkon.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdsledkem je syt\u00fd, jednolit\u00fd povrch, kter\u00fd m\u016f\u017ee b\u00fdt leskl\u00fd nebo matn\u00fd v z\u00e1vislosti na zvolen\u00e9m vrchn\u00edm laku. \u010cern\u00e9 zinkov\u00e1n\u00ed nab\u00edz\u00ed nejen elegantn\u00ed, modern\u00ed vzhled, ale tak\u00e9 p\u0159im\u011b\u0159enou \u00farove\u0148 ochrany proti korozi a p\u016fsoben\u00ed okoln\u00edho prost\u0159ed\u00ed. Je zvl\u00e1\u0161t\u011b obl\u00edben\u00fd v odv\u011btv\u00edch, kde je d\u016fle\u017eit\u00e1 estetika a n\u00edzk\u00e1 odrazivost - nap\u0159\u00edklad u st\u0159eln\u00fdch zbran\u00ed, elektroniky nebo luxusn\u00edho hardwaru.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vlastnosti a charakteristiky<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cern\u00e9 zinkov\u00e1n\u00ed nab\u00edz\u00ed jedine\u010dnou kombinaci vizu\u00e1ln\u00ed p\u0159ita\u017elivosti a funk\u010dn\u00edch v\u00fdhod:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Estetick\u00e1 p\u0159ita\u017elivost<\/strong>: Syt\u011b \u010dern\u00fd odst\u00edn - \u010dasto zv\u00fdrazn\u011bn\u00fd tmely - nab\u00edz\u00ed prvot\u0159\u00eddn\u00ed vzhled pro pr\u016fmyslov\u00e9 i spot\u0159ebitelsk\u00e9 aplikace. Matn\u00e9 povrchov\u00e9 \u00fapravy poskytuj\u00ed skryt\u00fd vzhled, zat\u00edmco leskl\u00e9 povrchov\u00e9 \u00fapravy nab\u00edzej\u00ed le\u0161t\u011bn\u00fd, \u0161pi\u010dkov\u00fd estetick\u00fd vzhled.<\/li>\n\n\n\n<li><strong>Odolnost proti korozi<\/strong>: St\u0159edn\u00ed ochrana, obvykle 120 a\u017e 240 hodin odolnosti p\u0159i zkou\u0161k\u00e1ch solnou mlhou (ASTM B117). T\u011bsn\u011bn\u00ed olejem nebo lakem v\u00fdrazn\u011b zlep\u0161uje v\u00fdkon.<\/li>\n\n\n\n<li><strong>V\u00fdkonnost opot\u0159eben\u00ed<\/strong>: Srovnateln\u00e9 se standardn\u00edm zinkov\u00e1n\u00edm. A\u010dkoli nen\u00ed ze sv\u00e9 podstaty vysoce odoln\u00fd proti od\u011bru, mohou tmely zv\u00fd\u0161it odolnost povrchu.<\/li>\n\n\n\n<li><strong>Adheze<\/strong>: \u010cern\u00fd pasiv\u00e1t dob\u0159e p\u0159ilne, pokud je povrch \u0159\u00e1dn\u011b vy\u010di\u0161t\u011bn a vylept\u00e1n. Spr\u00e1vn\u00e9 m\u00edch\u00e1n\u00ed b\u011bhem zpracov\u00e1n\u00ed zajist\u00ed rovnom\u011brn\u00e9 pokryt\u00ed.<\/li>\n\n\n\n<li><strong>Citlivost p\u0159\u00edpravy povrchu<\/strong>: D\u016fkladn\u00e9 odma\u0161t\u011bn\u00ed, lept\u00e1n\u00ed a spr\u00e1vn\u00e1 p\u0159edb\u011b\u017en\u00e1 \u00faprava jsou rozhoduj\u00edc\u00ed, aby se zabr\u00e1nilo vzniku skvrn nebo nestejn\u00e9 barvy.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kroky procesu<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cern\u00e9 zinkov\u00e1n\u00ed se prov\u00e1d\u00ed n\u011bkolikastup\u0148ov\u00fdm procesem, aby se dos\u00e1hlo funk\u010dnosti i povrchov\u00e9 \u00fapravy:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u010ci\u0161t\u011bn\u00ed a lept\u00e1n\u00ed<\/strong> - Odstra\u0148ov\u00e1n\u00ed olej\u016f, rzi nebo povrchov\u00fdch oxid\u016f pomoc\u00ed alkalick\u00fdch odma\u0161\u0165ovac\u00edch prost\u0159edk\u016f a kysel\u00fdch l\u00e1zn\u00ed.<\/li>\n\n\n\n<li><strong>Pozinkov\u00e1n\u00ed<\/strong> - Nanesen\u00ed vrstvy zinku o tlou\u0161\u0165ce obvykle 3-7 \u00b5m pomoc\u00ed standardn\u00edch kysel\u00fdch nebo alkalick\u00fdch l\u00e1zn\u00ed.<\/li>\n\n\n\n<li><strong>Oplachov\u00e1n\u00ed<\/strong> - D\u016fkladn\u00e9 opl\u00e1chnut\u00ed, aby se zabr\u00e1nilo kontaminaci l\u00e1zn\u00ed po o\u0161et\u0159en\u00ed.<\/li>\n\n\n\n<li><strong>Konverze \u010dern\u00e9ho chrom\u00e1tu<\/strong> - Pono\u0159en\u00ed do \u010dern\u00e9 trojmocn\u00e9 pasiva\u010dn\u00ed l\u00e1zn\u011b pro dosa\u017een\u00ed charakteristick\u00e9 barvy.<\/li>\n\n\n\n<li><strong>Z\u00e1v\u011bre\u010dn\u00e9 opl\u00e1chnut\u00ed<\/strong> - Odstran\u011bn\u00ed p\u0159ebyte\u010dn\u00fdch chemik\u00e1li\u00ed a zbytk\u016f.<\/li>\n\n\n\n<li><strong>Voliteln\u00e9 t\u011bsn\u011bn\u00ed<\/strong> - Aplikace olejov\u00e9ho, lakov\u00e9ho nebo polyuretanov\u00e9ho vrchn\u00edho laku pro zv\u00fd\u0161en\u00ed odolnosti proti korozi a vytvo\u0159en\u00ed leskl\u00e9ho nebo matn\u00e9ho povrchu.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Cel\u00fd proces je p\u0159izp\u016fsobiteln\u00fd pro velkos\u00e9riovou v\u00fdrobu, tak\u017ee je vhodn\u00fd pro hromadnou v\u00fdrobu spojovac\u00edch prvk\u016f, dr\u017e\u00e1k\u016f a kov\u00e1n\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>V\u00fdhody<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cern\u00e9 zinkov\u00e1n\u00ed nab\u00edz\u00ed n\u011bkolik v\u00fdznamn\u00fdch v\u00fdhod, d\u00edky nim\u017e je obl\u00edben\u00e9 v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u00fdrazn\u00e1 \u010dern\u00e1 povrchov\u00e1 \u00faprava<\/strong> - Poskytuje elegantn\u00ed, modern\u00ed vzhled, kter\u00fd se ned\u00e1 srovnat se standardn\u00edmi zinkov\u00fdmi nebo chrom\u00e1tov\u00fdmi povrchov\u00fdmi \u00fapravami.<\/li>\n\n\n\n<li><strong>Zv\u00fd\u0161en\u00e1 odolnost proti korozi pomoc\u00ed tmel\u016f<\/strong> - P\u0159i spr\u00e1vn\u00e9m ut\u011bsn\u011bn\u00ed m\u016f\u017ee \u010dern\u00fd zinek poskytnout v\u00fdznamnou ochranu pro vnit\u0159n\u00ed a lehk\u00e9 venkovn\u00ed aplikace.<\/li>\n\n\n\n<li><strong>N\u00e1kladov\u011b efektivn\u00ed alternativa<\/strong> - Jsou levn\u011bj\u0161\u00ed ne\u017e \u010dern\u00fd nikl nebo povlaky PVD (Physical Vapor Deposition) a p\u0159itom dosahuj\u00ed \u0161pi\u010dkov\u00e9ho estetick\u00e9ho vzhledu.<\/li>\n\n\n\n<li><strong>N\u00edzk\u00e1 odrazivost<\/strong> - Ide\u00e1ln\u00ed pro vojensk\u00e9, taktick\u00e9 a optick\u00e9 aplikace, kde je t\u0159eba minimalizovat odraz sv\u011btla.<\/li>\n\n\n\n<li><strong>Kompatibiln\u00ed s normami OEM<\/strong> - Vhodn\u00e9 pro mnoho po\u017eadavk\u016f na v\u00fdrobu origin\u00e1ln\u00edho vybaven\u00ed (OEM), zejm\u00e9na v automobilov\u00e9m a elektronick\u00e9m pr\u016fmyslu.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Omezen\u00ed<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Navzdory sv\u00e9 p\u0159ita\u017elivosti m\u00e1 \u010dern\u00e9 zinkov\u00e1n\u00ed ur\u010dit\u00e1 omezen\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ni\u017e\u0161\u00ed odolnost proti korozi ne\u017e zinek nikl<\/strong> - Bez ut\u011bsn\u011bn\u00ed nem\u00e1 \u010dern\u00fd zinek tak dobr\u00e9 vlastnosti v drsn\u00e9m venkovn\u00edm nebo mo\u0159sk\u00e9m prost\u0159ed\u00ed.<\/li>\n\n\n\n<li><strong>Dodr\u017eov\u00e1n\u00ed p\u0159edpis\u016f v oblasti \u017eivotn\u00edho prost\u0159ed\u00ed<\/strong> - Star\u0161\u00ed \u010dern\u00e9 chrom\u00e1ty pou\u017e\u00edvaly \u0161estimocn\u00fd chrom (Cr6), kter\u00fd je podle RoHS a REACH omezen. Modern\u00ed \u010dern\u00fd zinek mus\u00ed pou\u017e\u00edvat trojmocn\u00fd chrom (Cr3), aby spl\u0148oval p\u0159edpisy.<\/li>\n\n\n\n<li><strong>Odolnost proti opot\u0159eben\u00ed<\/strong> - M\u00e9n\u011b vhodn\u00e9 pro aplikace s vysok\u00fdm t\u0159en\u00edm nebo siln\u00fdm opot\u0159eben\u00edm, pokud nejsou dostate\u010dn\u011b povrchov\u011b upraveny.<\/li>\n\n\n\n<li><strong>Citlivost na jednotnost barev<\/strong> - Mal\u00e9 odchylky v teplot\u011b, m\u00edch\u00e1n\u00ed nebo p\u0159\u00edprav\u011b povrchu mohou ovlivnit rovnom\u011brnost \u010dern\u00e9ho povrchu.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aplikace<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cern\u00e9 zinkov\u00e1n\u00ed se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 v pr\u016fmyslu i ve spot\u0159ebn\u00edm pr\u016fmyslu, kde se oce\u0148uje odolnost proti korozi, vizu\u00e1ln\u00ed p\u0159ita\u017elivost a n\u00edzk\u00e1 odrazivost sv\u011btla. Mezi hlavn\u00ed oblasti pou\u017eit\u00ed pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sou\u010d\u00e1sti st\u0159eln\u00e9 zbran\u011b<\/strong>: R\u00e1my, z\u00e1v\u011bry, spou\u0161t\u011b a \u0161rouby poskytuj\u00ed ochranu proti korozi i taktick\u00fd estetick\u00fd vzhled.<\/li>\n\n\n\n<li><strong>Fotoapar\u00e1t a optick\u00fd hardware<\/strong>: Pouzdra objektiv\u016f, dr\u017e\u00e1ky a sk\u0159\u00edn\u011b, u nich\u017e je d\u016fle\u017eit\u00e9, aby neosl\u0148ovaly.<\/li>\n\n\n\n<li><strong>Luxusn\u00ed a architektonick\u00fd hardware<\/strong>: Vysoce kvalitn\u00ed kliky, knofl\u00edky a spojovac\u00ed prvky pou\u017e\u00edvan\u00e9 v interi\u00e9rech nebo v komer\u010dn\u00edch za\u0159\u00edzen\u00edch.<\/li>\n\n\n\n<li><strong>Spot\u0159ebn\u00ed elektronika<\/strong>: Kryty, mont\u00e1\u017en\u00ed dr\u017e\u00e1ky a \u0161rouby pro skryt\u00fd design a prevenci koroze.<\/li>\n\n\n\n<li><strong>Automobilov\u00fd a leteck\u00fd pr\u016fmysl<\/strong>: Vyb\u00edrejte sou\u010d\u00e1sti, u kter\u00fdch je po\u017eadov\u00e1n vzhled a m\u00edrn\u00e1 ochrana proti korozi.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. \u017dlut\u00e9 zinkov\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfomf-OWlwviz9H3Ps76osYOwOIiEr5wJwXQU5n83rmvYtvUBZC-st6X0SC1neg4cdILVXaeBxzeLZS73TXqf-lEOeQVTn7EsslOWiYCt0v_l0y9eYRPV23Fo02patcOndGZUlMTcTf0iOW0XqO0Os?key=rMsziP-ChMrtNu0OESolrw\" alt=\"\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Co je \u017elut\u00e9 zinkov\u00e1n\u00ed?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u017dlut\u00e9 zinkov\u00e1n\u00ed je zinkov\u00e1n\u00ed, kter\u00e9 je n\u00e1sledn\u011b o\u0161et\u0159eno \u017elut\u00fdm nebo \u017elut\u011b duhov\u00fdm chrom\u00e1tov\u00fdm konverzn\u00edm povlakem. V\u00fdsledkem je klasick\u00e1 zlatav\u00e1 povrchov\u00e1 \u00faprava, kterou lze b\u011b\u017en\u011b vid\u011bt na spojovac\u00edch prvc\u00edch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vlastnosti a charakteristiky<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Odolnost proti korozi<\/strong>: 240-500+ hodin soln\u00e9 mlhy v z\u00e1vislosti na tlou\u0161\u0165ce chrom\u00e1tu<\/li>\n\n\n\n<li><strong>Vzhled<\/strong>: zlat\u00fd chameleon od \u017elut\u00e9 po duhov\u011b zelenou barvu<\/li>\n\n\n\n<li><strong>Nosit<\/strong>: podobn\u011b jako u oby\u010dejn\u00e9ho zinku; bezbarv\u00e9 vrchn\u00ed n\u00e1t\u011bry mohou zlep\u0161ovat<\/li>\n\n\n\n<li><strong>Adheze<\/strong>: dob\u0159e se standardn\u00ed p\u0159edb\u011b\u017enou \u00fapravou<\/li>\n\n\n\n<li><strong>Tepeln\u00e1 stabilita<\/strong>: \u00fa\u010dinn\u00fd do cca 150 \u00b0C; vysok\u00e9 teploty mohou zp\u016fsobit degradaci chromanu<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kroky procesu<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u010ci\u0161t\u011bn\u00ed a odma\u0161\u0165ov\u00e1n\u00ed<\/li>\n\n\n\n<li>Kysel\u00e9 mo\u0159en\u00ed nebo alkalick\u00e9 lept\u00e1n\u00ed<\/li>\n\n\n\n<li>Zinkov\u00e1 usazenina (4-8 \u00b5m)<\/li>\n\n\n\n<li>Oplachov\u00e1n\u00ed<\/li>\n\n\n\n<li>\u017dlut\u00fd chrom\u00e1tov\u00fd ponor (Cr6 nebo Cr3)<\/li>\n\n\n\n<li>Oplachov\u00e1n\u00ed<\/li>\n\n\n\n<li>Voliteln\u00fd olej\/t\u011bsnic\u00ed prost\u0159edek<\/li>\n\n\n\n<li>Pe\u010den\u00ed nebo su\u0161en\u00ed na vzduchu<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Trojmocn\u00fd chrom (Cr3) je nyn\u00ed up\u0159ednost\u0148ov\u00e1n z d\u016fvodu souladu s RoHS a REACH.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>V\u00fdhody<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rozpoznateln\u00e1 dekorativn\u00ed \u00faprava<\/li>\n\n\n\n<li>Vynikaj\u00edc\u00ed odolnost proti korozi na b\u00e1zi<\/li>\n\n\n\n<li>N\u00e1kladov\u011b efektivn\u00ed a \u0161irok\u00e1 dostupnost<\/li>\n\n\n\n<li>Kompatibiln\u00ed s pr\u00e1\u0161ky nebo barvami<\/li>\n\n\n\n<li>Snadno recyklovateln\u00e9<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Omezen\u00ed<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u017elut\u00fd chroman Cr6 je omezen; Cr3 je m\u00e9n\u011b z\u00e1\u0159iv\u00fd<\/li>\n\n\n\n<li>Degradace zbarven\u00ed vlivem tepla\/opot\u0159eben\u00ed<\/li>\n\n\n\n<li>Ur\u010dit\u00e1 koroze p\u0159i vysok\u00e9 vlhkosti, pokud nen\u00ed ut\u011bsn\u011bna<\/li>\n\n\n\n<li>N\u00edzk\u00e9 teplotn\u00ed limity pro optim\u00e1ln\u00ed v\u00fdkon<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aplikace<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Automobilov\u00fd spojovac\u00ed materi\u00e1l, matice, \u0161rouby<\/li>\n\n\n\n<li>Stavebn\u00ed \u0161rouby, z\u00e1v\u011bsy, kov\u00e1n\u00ed<\/li>\n\n\n\n<li>N\u00e1\u0159ad\u00ed pro kutily, spojovac\u00ed materi\u00e1l pro gar\u00e1\u017eov\u00e1 vrata<\/li>\n\n\n\n<li>N\u00e1mo\u0159n\u00ed hardware s \u0159\u00e1dn\u00fdm t\u011bsn\u011bn\u00edm<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Zlat\u00e9 zinkov\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXehYYHhxTO5Yr-Fgfufb17Bo38rMluVYQfTCelyLaaOFNiRvWjg33TtXlN3gFa4G_0G06STDUYwoj1_Wg5xxPV1ig46k7eyM72ZmRMecjcWVfhxJZ2SK_jlNvvjlnTmQLe9L6IEgiFnWbFQXHqSZQ?key=rMsziP-ChMrtNu0OESolrw\" alt=\"Slu\u017eba trojvalentn\u00edho \u017elut\u00e9ho zinku v Pune | ID: 2849081582248\" style=\"width:445px;height:auto\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Co je zlat\u00e9 zinkov\u00e1n\u00ed?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Zlat\u00e9 zinkov\u00e1n\u00ed, \u010dasto ozna\u010dovan\u00e9 jako zlat\u00fd pasivovan\u00fd zinek, se prov\u00e1d\u00ed pomoc\u00ed specializovan\u00e9 pasivace. Napodobuje mosaz nebo zlato, ale je v\u00fdrazn\u011b cenov\u011b dostupn\u011bj\u0161\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vlastnosti a charakteristiky<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vzhled<\/strong>: sv\u011btl\u00fd, jednolit\u00fd zlat\u00fd povrch - m\u00e9n\u011b k\u0159iklav\u00fd ne\u017e le\u0161t\u011bn\u00e1 mosaz; m\u016f\u017ee b\u00fdt matn\u00fd nebo matn\u011b zlat\u00fd.<\/li>\n\n\n\n<li><strong>Odolnost proti korozi<\/strong>: 240-500 hodin soln\u00e1 mlha jako \u017elut\u00fd chrom\u00e1t<\/li>\n\n\n\n<li><strong>Odolnost proti opot\u0159eben\u00ed<\/strong>: typick\u00e9 pro oby\u010dejn\u00fd zinek<\/li>\n\n\n\n<li><strong>Adheze<\/strong>: dobr\u00fd<\/li>\n\n\n\n<li><strong>Tepeln\u00e1 stabilita<\/strong>: vhodn\u00e9 do 150-170 \u00b0C<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kroky procesu<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Clean<\/li>\n\n\n\n<li>Kysel\u00e9 zinkov\u00e1n\u00ed (4-8 \u00b5m)<\/li>\n\n\n\n<li>Oplachov\u00e1n\u00ed<\/li>\n\n\n\n<li>Konverze trojmocn\u00e9ho chromanu zlat\u00e9ho<\/li>\n\n\n\n<li>Oplachov\u00e1n\u00ed<\/li>\n\n\n\n<li>Voliteln\u00fd lak nebo tmel<\/li>\n\n\n\n<li>Su\u0161en\u00ed<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">N\u011bkter\u00e9 syst\u00e9my pou\u017e\u00edvaj\u00ed slo\u017eit\u00e1 organick\u00e1 barviva pro syt\u011bj\u0161\u00ed zlat\u00e9 odst\u00edny.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>V\u00fdhody<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pr\u00e9miov\u00fd vzhled zlata za n\u00edzkou cenu<\/li>\n\n\n\n<li>trvanlivost ve srovn\u00e1n\u00ed s jednoduch\u00fdm barven\u00edm nebo pokovov\u00e1n\u00edm<\/li>\n\n\n\n<li>Kompatibiln\u00ed s lepidly a n\u00e1t\u011bry<\/li>\n\n\n\n<li>Ekologick\u00e1 kompatibilita s chemick\u00fdmi l\u00e1tkami Cr3<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Omezen\u00ed<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Barva m\u016f\u017ee od\u0159en\u00edm\/UV z\u00e1\u0159en\u00edm vyblednout<\/li>\n\n\n\n<li>Vy\u0161\u0161\u00ed n\u00e1klady ne\u017e u \u017elut\u00e9ho pokovov\u00e1n\u00ed<\/li>\n\n\n\n<li>M\u00e9n\u011b \u010dast\u00e9 - men\u0161\u00ed v\u00fdb\u011br zpracovatelsk\u00fdch dom\u016f<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aplikace<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Upev\u0148ovac\u00ed prvky v mosazn\u00e9m kov\u00e1n\u00ed<\/li>\n\n\n\n<li>Dekorativn\u00ed elektronika, mal\u00e9 motorov\u00e9 d\u00edly<\/li>\n\n\n\n<li>Sv\u00edtidla, hardware<\/li>\n\n\n\n<li>Architektonick\u00e9 interi\u00e9ry: \u0161rouby, dr\u017e\u00e1ky<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Shrnut\u00ed a pr\u016fvodce rozhodov\u00e1n\u00edm pro k\u0159\u00ed\u017eov\u00e9 srovn\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><em>Tabulka 1 Shrnut\u00ed k\u0159\u00ed\u017eov\u00e9ho srovn\u00e1n\u00ed a rozhodovac\u00ed p\u0159\u00edru\u010dka<\/em><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Funkce<\/strong><\/td><td><strong>Zn-Ni<\/strong><\/td><td><strong>\u010cern\u00e1 Zn<\/strong><\/td><td><strong>\u017dlut\u00fd Zn<\/strong><\/td><td><strong>Zlato Zn<\/strong><\/td><\/tr><tr><td>Koroze (soln\u00e1 mlha)<\/td><td>\u2605\u2605\u2605\u2605\u2605+<\/td><td>\u2605\u2605-\u2605\u2605\u2605 (~120-240 h)<\/td><td>\u2605\u2605\u2605\u2605 (~240-500 h)<\/td><td>\u2605\u2605\u2605\u2605 (~240-500 h)<\/td><\/tr><tr><td>Tvrdost a opot\u0159eben\u00ed<\/td><td>\u2605\u2605\u2605\u2605\u2606<\/td><td>\u2605\u2605-\u2605\u2605\u2605<\/td><td>\u2605\u2605<\/td><td>\u2605\u2605<\/td><\/tr><tr><td>Teplotn\u00ed stabilita<\/td><td>Do 300 \u00b0C<\/td><td>Do 150 \u00b0C<\/td><td>Do 150 \u00b0C<\/td><td>Do 170 \u00b0C<\/td><\/tr><tr><td>Vzhled<\/td><td>St\u0159\u00edbrn\u00e1\/\u0161ed\u00e1<\/td><td>Elegantn\u00ed \u010dern\u00e1<\/td><td>Zlat\u00e9 odst\u00edny<\/td><td>Z\u00e1\u0159iv\u011b zlat\u00e1<\/td><\/tr><tr><td>Soulad (Cr VI)<\/td><td>Pouze Cr III<\/td><td>Vy\u017eaduje Cr III<\/td><td>Cr III Preferovan\u00fd<\/td><td>Cr III<\/td><\/tr><tr><td>Typick\u00e9 p\u0159\u00edpady pou\u017eit\u00ed<\/td><td>Vysok\u00e9 nam\u00e1h\u00e1n\u00ed a koroze<\/td><td>Stealth\/dekorativn\u00ed<\/td><td>Obecn\u00fd spojovac\u00ed materi\u00e1l<\/td><td>Dekora\u010dn\u00ed spojovac\u00ed materi\u00e1l\/v\u00fdrobky<\/td><\/tr><tr><td>N\u00e1klady<\/td><td>Vysok\u00e1<\/td><td>N\u00edzk\u00e1 a st\u0159edn\u00ed \u00farove\u0148<\/td><td>N\u00edzk\u00e1<\/td><td>St\u0159edn\u011b vysok\u00e9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>V\u00fdb\u011br spr\u00e1vn\u00e9ho pokoven\u00ed<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Korozn\u00ed prost\u0159ed\u00ed<\/strong>: Expozice na mo\u0159i nebo chemick\u00e1 expozice? Zvolte Zn-Ni. Pro vnit\u0159n\u00ed dekorativn\u00ed povrchov\u00e9 \u00fapravy zvolte \u017elutou nebo zlatou barvu.<\/li>\n\n\n\n<li><strong>Estetika<\/strong>: Chcete \u010dern\u00e9 stealth? Zvolte \u010dern\u00fd zinek. Pot\u0159ebujete mosazn\u00fd\/zlat\u00fd odst\u00edn? Pou\u017eijte zlat\u00fd zinek.<\/li>\n\n\n\n<li><strong>Mechanick\u00e9 opot\u0159eben\u00ed\/\u00fanava<\/strong>: Nejlep\u0161\u00ed je Zn-Ni.<\/li>\n\n\n\n<li><strong>Dodr\u017eov\u00e1n\u00ed p\u0159edpis\u016f<\/strong>: Zajist\u011bte pou\u017eit\u00ed trojmocn\u00fdch syst\u00e9m\u016f pro kompatibilitu s RoHS\/REACH.<\/li>\n\n\n\n<li><strong>Rozpo\u010det<\/strong>: \u017dlut\u00fd zinek je cenov\u011b nejv\u00fdhodn\u011bj\u0161\u00ed; Zn-Ni a zlato stoj\u00ed v\u00edce.<\/li>\n\n\n\n<li><strong>N\u00e1sledn\u00e9 zpracov\u00e1n\u00ed<\/strong>: Pokud bude n\u00e1sledovat barva nebo pr\u00e1\u0161ek, zajist\u011bte, aby pokoven\u00ed podporovalo p\u0159ilnavost.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Environment\u00e1ln\u00ed a regula\u010dn\u00ed aspekty<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXcDOrGpd6GzbqRuynBaTs64DZ_kmli-E9BOwTrWpFpPVL438o-72qxr9dEs75wcAyi0iOB77lmven6EuQiLaSrxAC_l86u8FKFzfnbAvhlLcNzbpridvBb0LY-6VmCuRW-0GF8ziJ_LKu9fEj_Hnnk?key=rMsziP-ChMrtNu0OESolrw\" alt=\"Spole\u010dnost v Pensylv\u00e1nii citov\u00e1na kv\u016fli expozici toxick\u00e9mu \u0161estimocn\u00e9mu chromu\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>P\u0159edpisy t\u00fdkaj\u00edc\u00ed se chromu<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0160estimocn\u00fd chrom (Cr VI)<\/strong>, kdysi b\u011b\u017en\u00fd ve \u017elut\u00e9m a \u010dern\u00e9m chromanu, je kv\u016fli toxicit\u011b p\u0159\u00edsn\u011b regulov\u00e1n.<\/li>\n\n\n\n<li><strong>Trojmocn\u00fd chrom (Cr III)<\/strong> jsou nyn\u00ed bezpe\u010dn\u00e9, vyhovuj\u00edc\u00ed norm\u00e1m a recyklovateln\u00e9.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Recyklace odpad\u016f a koupelen<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pou\u017eit\u00e9 kysel\u00e9 l\u00e1zn\u011b a oplachov\u00e1 voda mus\u00ed b\u00fdt p\u0159ed likvidac\u00ed o\u0161et\u0159eny na zinek a nikl.<\/li>\n\n\n\n<li>Galvanizovny \u010dasto provozuj\u00ed uzav\u0159en\u00e9 syst\u00e9my pro zp\u011btn\u00e9 z\u00edsk\u00e1v\u00e1n\u00ed kov\u016f a neutralizaci odpadn\u00edch vod.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Bezpe\u010dnost pracovn\u00edk\u016f<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chra\u0148te pracovn\u00edky p\u0159ed inhala\u010dn\u00ed nebo derm\u00e1ln\u00ed expozic\u00ed sol\u00edm kov\u016f nebo kyanid\u016fm.<\/li>\n\n\n\n<li>Kryt\u00ed syst\u00e9mu, v\u011btr\u00e1n\u00ed a osobn\u00ed ochrann\u00e9 prost\u0159edky jsou povinn\u00e9.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>P\u0159\u00edprava povrchu a kontrola kvality<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfAyDDRCl2JAvUed-vKbmiDAGv-O9nxhT5ZDCskKqu6jzy11S7oP9crM0DfhbnLTt-FdCJtkkpMPTnb5TLxD0EsuzW6uBHY05sFgw2GPxeFEN4YZykI4CWHyO3L0EeohdeQyJP27C5z7O2jOo5Bd3M?key=rMsziP-ChMrtNu0OESolrw\" alt=\"Kompletn\u00ed pr\u016fvodce zinkov\u00e1n\u00edm: V\u0161e, co pot\u0159ebujete v\u011bd\u011bt - KDM Fabrication\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Z\u00e1kladn\u00ed informace o p\u0159ed\u00faprav\u011b<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Odma\u0161\u0165ov\u00e1n\u00ed: alkalick\u00e9 \u010distic\u00ed prost\u0159edky nebo rozpou\u0161t\u011bdla<\/li>\n\n\n\n<li>Kysel\u00e9 lept\u00e1n\u00ed vs. alkalick\u00e9 lept\u00e1n\u00ed: volba podle d\u00edlu a po\u017eadavku na l\u00e1ze\u0148<\/li>\n\n\n\n<li>Oplachov\u00e1n\u00ed: deionizovanou vodou, aby se zabr\u00e1nilo tvorb\u011b skvrn<\/li>\n\n\n\n<li>Aktivace: \u010dasto v obvodu p\u0159ed pokoven\u00edm<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Monitorov\u00e1n\u00ed b\u011bhem procesu<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kritick\u00e9 parametry:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>pH, koncentrace niklu\/zinku<\/li>\n\n\n\n<li>Teplota a proudov\u00e1 hustota<\/li>\n\n\n\n<li>Koncentrace aditiv<\/li>\n\n\n\n<li>St\u00e1rnut\u00ed a dopl\u0148ov\u00e1n\u00ed l\u00e1zn\u00ed<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>N\u00e1sledn\u00e9 dokon\u010dovac\u00ed pr\u00e1ce<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u011bsn\u011bn\u00ed: oleje, nikl nebo PVD vrchn\u00ed vrstvy<\/li>\n\n\n\n<li>Pe\u010den\u00ed pro uvoln\u011bn\u00ed vod\u00edku (pro nam\u00e1han\u00e9 oceli)<\/li>\n\n\n\n<li>Testov\u00e1n\u00ed: soln\u00e1 mlha, p\u0159ilnavost, m\u011b\u0159en\u00ed barev, m\u011b\u0159en\u00ed tlou\u0161\u0165ky<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Inovace a nov\u00e9 trendy<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pasivace na organick\u00e9 b\u00e1zi<\/strong>: Bezchromov\u00fd, t\u011bsn\u00edc\u00ed, ekologick\u00fd<\/li>\n\n\n\n<li><strong>Aditiva pro konverzn\u00ed n\u00e1t\u011bry<\/strong>: Nanokeramika, inhibitory koroze<\/li>\n\n\n\n<li><strong>Robotick\u00e9 antikorozn\u00ed syst\u00e9my<\/strong>: Pln\u011b automatizovan\u00e9 linky s \u00fazkou toleranc\u00ed<\/li>\n\n\n\n<li><strong>Hybridn\u00ed n\u00e1t\u011bry<\/strong>: Zn-Ni pod organickou vrchn\u00ed vrstvou pro maxim\u00e1ln\u00ed odolnost<\/li>\n\n\n\n<li><strong>Lehk\u00e9 hlin\u00edkov\u00e9 substr\u00e1ty<\/strong>: Zn pokovov\u00e1n\u00ed Al adhezn\u00edmi meziprodukty<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>P\u0159\u00edpadov\u00e9 studie z oboru<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Spojovac\u00ed materi\u00e1l pro automobilov\u00fd pr\u016fmysl - Zn-Ni<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobce OEM po\u017eadoval spojovac\u00ed prvky pro mont\u00e1\u017e V-motoru, kter\u00e9 jsou odoln\u00e9 v\u016f\u010di cykl\u016fm oleje a tepla. Zn-Ni pokoven\u00ed pro\u0161lo 1 000hodinovou zkou\u0161kou solnou mlhou a vydr\u017eelo cykly tepeln\u00fdch \u0161ok\u016f pro d\u00edly ventilov\u00e9ho rozvodu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vojensk\u00fd stealth hardware - \u010dern\u00fd zinek<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Obrann\u00fd dodavatel vyr\u00e1b\u011bl mont\u00e1\u017ee zam\u011b\u0159ova\u010d\u016f z \u010dern\u00e9ho zinku s matnou \u00fapravou Cr3. Infra\u010derven\u00e1 odrazivost klesla o 85% a po ut\u011bsn\u011bn\u00ed olejem bylo dosa\u017eeno 200hodinov\u00e9 odolnosti proti soln\u00e9 mlze.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Dekorativn\u00ed kov\u00e1n\u00ed - zlat\u00fd zinek<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobce sv\u00edtidel nahradil d\u00edly z mosazn\u00e9 slitiny ocelov\u00fdmi, pozlacen\u00fdmi. Kone\u010dn\u00e9 n\u00e1klady se sn\u00ed\u017eily o 30% a trvanlivost barev byla zv\u00fd\u0161ena bezbarv\u00fdm lakem - 500 hodin ochrany proti korozi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Osv\u011bd\u010den\u00e9 postupy pro v\u00fdb\u011br pokovov\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Definovat v\u00fdkonnostn\u00ed m\u011b\u0159\u00edtka<\/strong> - soln\u00e1 mlha, teplota, estetika, opot\u0159eben\u00ed<\/li>\n\n\n\n<li><strong>Stanoven\u00ed regula\u010dn\u00edch limit\u016f<\/strong> - RoHS, REACH, z\u00e1kaz Cr VI<\/li>\n\n\n\n<li><strong>Posouzen\u00ed dopadu na n\u00e1klady<\/strong> - n\u00e1klady na pokoven\u00ed vs. hodnota d\u00edlu<\/li>\n\n\n\n<li><strong>V\u010dasn\u00e9 zapojen\u00ed poklada\u010de<\/strong> - mohou doporu\u010dit nastaven\u00ed l\u00e1zn\u00ed a optimalizovat p\u0159edb\u011b\u017enou \u00fapravu.<\/li>\n\n\n\n<li><strong>Prototyp a testov\u00e1n\u00ed<\/strong> - re\u00e1ln\u00e9 prost\u0159ed\u00ed, testov\u00e1n\u00ed koroze\/opot\u0159eben\u00ed<\/li>\n\n\n\n<li><strong>Roz\u0161\u00ed\u0159en\u00ed s\u00e9rie pl\u00e1n\u016f<\/strong> - p\u0159izp\u016fsobit se p\u0159echodu na ekologick\u00e9 n\u00e1t\u011bry nebo hybridn\u00ed syst\u00e9my.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Z\u00e1v\u011br<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00e1n\u00ed z\u016fst\u00e1v\u00e1 pil\u00ed\u0159em v odv\u011btv\u00ed povrchov\u00fdch \u00faprav kov\u016f, proto\u017ee jeho v\u00fdznamn\u00e1 ochrana proti korozi pokr\u00fdv\u00e1 \u0161irok\u00e9 spektrum pr\u016fmyslov\u00fdch odv\u011btv\u00ed. D\u00edky sv\u00e9 v\u0161estrannosti, n\u00e1kladov\u011b efektivn\u00ed povaze a funk\u010dnosti se stala volbou v\u00fdrobc\u016f, kte\u0159\u00ed cht\u011bj\u00ed nejen funk\u010dnost, ale tak\u00e9 ur\u010ditou formu estetiky. S t\u00edm, jak se zdokonalovala technologie povrchov\u00fdch \u00faprav, jsou nyn\u00ed nab\u00edzen\u00e9 formy zinkov\u00e1n\u00ed (tj. zinkov\u00fd nikl, \u010dern\u00fd zinek, \u017elut\u00fd zinek a zlat\u00fd zinek) p\u0159izp\u016fsobeny individu\u00e1ln\u00edmu pou\u017eit\u00ed a \u0159e\u0161en\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zinkov\u00fd nikl p\u0159edstavuje nejvy\u0161\u0161\u00ed v\u00fdkon a prost\u0159ed\u00ed s vysokou koroz\u00ed, nap\u0159\u00edklad v automobilov\u00e9m a leteck\u00e9m pr\u016fmyslu, zat\u00edmco \u010dern\u00e9 zinkov\u00e1n\u00ed spl\u0148uje po\u017eadavky na hladk\u00fd, n\u00edzkoprofilov\u00fd vzhled a povrchovou \u00fapravu v pr\u016fmyslov\u00e9m a taktick\u00e9m designu. Obecn\u00e9 kov\u00e1n\u00ed lze opat\u0159it tradi\u010dn\u00ed, korozivzdornou povrchovou \u00fapravou ve \u017elut\u00e9m zinku a dos\u00e1hnout vzhledu dekorativn\u00ed povrchov\u00e9 \u00fapravy ve zlat\u00e9m zinkov\u00e1n\u00ed p\u0159i ni\u017e\u0161\u00edch n\u00e1kladech ve srovn\u00e1n\u00ed s mosaz\u00ed nebo zlatem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i rozhodov\u00e1n\u00ed o typu pokoven\u00ed je t\u0159eba \u00fa\u010dinn\u011b zohlednit aspekty odolnosti proti korozi, opot\u0159eben\u00ed, estetick\u00e9 hodnoty, vl\u00e1dn\u00edch certifika\u010dn\u00edch po\u017eadavk\u016f (zejm\u00e9na Cr III nebo Cr VI) a celkov\u00e9ho rozpo\u010dtu projektu. Rozpozn\u00e1n\u00ed t\u011bchto prom\u011bnn\u00fdch umo\u017e\u0148uje konstrukt\u00e9r\u016fm a projektant\u016fm \u010dinit dob\u0159e informovan\u00e1 rozhodnut\u00ed, aby mohli prodlou\u017eit \u017eivotnost sv\u00fdch v\u00fdrobk\u016f a tak\u00e9 zlep\u0161it jejich v\u00fdkon.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vzhledem k tomu, \u017ee se pr\u016fmysl bude ub\u00edrat sm\u011brem udr\u017eiteln\u011bj\u0161\u00edch, vysoce \u00fa\u010dinn\u00fdch n\u00e1t\u011br\u016f, bude zinkov\u00e1n\u00ed, p\u0159inejmen\u0161\u00edm jeho sou\u010dasn\u00e9 varianty, i nad\u00e1le \u00fa\u010dinnou odpov\u011bd\u00ed na ochranu kov\u016f, kter\u00e1 je dlouhodob\u00e1 a ekonomick\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Zinc plating is a method of surface finishing that has been embraced worldwide as a way of coating metals, mainly steel and iron, and preventing corrosion besides improving their appearance. This is achieved by electroplating a thin layer of zinc thus forming a barrier by protecting the base metal against climatic factors such as moisture [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1741,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85,1],"tags":[86],"class_list":["post-1740","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zinc-plating","category-die-casting","tag-types-of-zinc-plating"],"_links":{"self":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/posts\/1740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/comments?post=1740"}],"version-history":[{"count":0,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/posts\/1740\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/media\/1741"}],"wp:attachment":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/media?parent=1740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/categories?post=1740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/tags?post=1740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}