{"id":25488,"date":"2025-11-05T09:39:21","date_gmt":"2025-11-05T01:39:21","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=25488"},"modified":"2025-11-05T09:39:21","modified_gmt":"2025-11-05T01:39:21","slug":"proc-hlinikove-desky-kapalinoveho-chlazeni-koroduji-rychleji","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/why-do-aluminum-liquid-cooling-plates-corrode-faster\/","title":{"rendered":"Pro\u010d hlin\u00edkov\u00e9 desky kapalinov\u00e9ho chlazen\u00ed rychleji koroduj\u00ed?"},"content":{"rendered":"

\"\u010dern\u00e9
Stylov\u00e9 \u010dern\u00e9 ko\u017een\u00e9 kotn\u00edkov\u00e9 boty s blokov\u00fdmi podpatky ide\u00e1ln\u00ed pro podzimn\u00ed m\u00f3du<\/figcaption><\/figure>\n<\/p>\n

Pokud chladic\u00ed syst\u00e9my st\u00e1rnou p\u0159\u00edli\u0161 rychle, kles\u00e1 jejich v\u00fdkon a rostou n\u00e1klady na \u00fadr\u017ebu. Mnoho in\u017een\u00fdr\u016f si v\u0161imlo, \u017ee hlin\u00edkov\u00e9 desky koroduj\u00ed d\u0159\u00edve, ne\u017e se o\u010dek\u00e1valo, a to i v uzav\u0159en\u00fdch syst\u00e9mech.<\/p>\n

Hlin\u00edkov\u00e9 kapalinov\u00e9 chladic\u00ed desky koroduj\u00ed rychleji kv\u016fli elektrochemick\u00fdm reakc\u00edm mezi hlin\u00edkem a ne\u010distotami chladic\u00ed kapaliny, zejm\u00e9na pokud doch\u00e1z\u00ed ke galvanick\u00e9mu spojen\u00ed nebo \u0161patn\u00e9 regulaci pH.<\/strong><\/p>\n

Tato koroze oslabuje strukturu, sni\u017euje p\u0159enos tepla a m\u016f\u017ee v\u00e9st k net\u011bsnostem nebo selh\u00e1n\u00ed syst\u00e9mu. Pod\u00edvejme se, co tento probl\u00e9m zp\u016fsobuje a jak mu m\u016f\u017eeme zabr\u00e1nit.<\/p>\n

Co zp\u016fsobuje korozi hlin\u00edkov\u00fdch chladic\u00edch desek?<\/h2>\n

Koroze je p\u0159irozen\u00fd proces, ale v technick\u00fdch syst\u00e9mech obvykle znamen\u00e1, \u017ee n\u011bco nen\u00ed v po\u0159\u00e1dku. Hlin\u00edk je reaktivn\u00ed, a p\u0159esto\u017ee vytv\u00e1\u0159\u00ed ochrannou vrstvu oxidu, je tato vrstva za ur\u010dit\u00fdch podm\u00ednek k\u0159ehk\u00e1.<\/p>\n

Korozi hlin\u00edkov\u00fdch chladic\u00edch desek zp\u016fsobuj\u00ed p\u0159edev\u0161\u00edm galvanick\u00e9 reakce, chladic\u00ed kapaliny s vysokou vodivost\u00ed, \u0161patn\u00e1 rovnov\u00e1ha pH a zne\u010di\u0161t\u011bn\u00ed, kter\u00e9 po\u0161kozuje oxidov\u00fd film.<\/strong><\/p>\n

\"\u010dern\u00e1
Elegantn\u00ed \u010dern\u00e1 ko\u017een\u00e1 kancel\u00e1\u0159sk\u00e1 \u017eidle s ergonomick\u00fdm designem pro pohodln\u00e9 sezen\u00ed na pracovi\u0161ti<\/figcaption><\/figure>\n<\/p>\n

Hlavn\u00ed mechanismy koroze<\/h3>\n\n\n\n\n\n\n\n\n\n
Typ koroze<\/th>\nPopis<\/th>\nTypick\u00e1 p\u0159\u00ed\u010dina<\/th>\n<\/tr>\n<\/thead>\n
Galvanick\u00e1 koroze<\/td>\nVznik\u00e1 mezi r\u016fznorod\u00fdmi kovy, kter\u00e9 se dot\u00fdkaj\u00ed chladic\u00ed kapalinou.<\/td>\nM\u00edch\u00e1n\u00ed m\u011bd\u011bn\u00fdch a hlin\u00edkov\u00fdch d\u00edl\u016f<\/td>\n<\/tr>\n
D\u016flkov\u00e1 koroze<\/td>\nLokalizovan\u00e9 d\u00edry vznikaj\u00ed p\u0159i poru\u0161en\u00ed vrstvy oxidu<\/td>\nChloridov\u00e9 ionty v chladic\u00edm m\u00e9diu<\/td>\n<\/tr>\n
\u0160t\u011brbinov\u00e1 koroze<\/td>\nSkryt\u00e9 napaden\u00ed ve spoj\u00edch nebo t\u011bsn\u011bn\u00edch<\/td>\nZ\u00f3ny stagnace chladic\u00ed kapaliny<\/td>\n<\/tr>\n
Eroze a koroze<\/td>\nZp\u016fsobeno vysokorychlostn\u00edm proud\u011bn\u00edm chladic\u00ed kapaliny odstra\u0148uj\u00edc\u00ed oxidy<\/td>\nNadm\u011brn\u00fd pr\u016ftok<\/td>\n<\/tr>\n
Chemick\u00e1 koroze<\/td>\nP\u0159\u00ed\u010dinou jsou p\u0159\u00edsady do chladic\u00ed kapaliny nebo nespr\u00e1vn\u00e9 pH.<\/td>\n\u0160patn\u00e1 sm\u011bs kapalin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

I mal\u00e9 zne\u010di\u0161t\u011bn\u00ed nebo chemick\u00e1 nerovnov\u00e1ha mohou zp\u016fsobit rychlej\u0161\u00ed rozpou\u0161t\u011bn\u00ed hlin\u00edku. P\u0159i jednom testu jsem pozoroval, \u017ee p\u0159id\u00e1n\u00ed m\u011bd\u011bn\u00fdch trubek do hlin\u00edkov\u00e9 chladic\u00ed smy\u010dky zv\u00fd\u0161ilo b\u011bhem t\u0159\u00ed m\u011bs\u00edc\u016f rychlost koroze desetin\u00e1sobn\u011b v d\u016fsledku galvanick\u00e9 vazby.<\/p>\n

Chemick\u00e9 faktory<\/h3>\n

Na slo\u017een\u00ed chladic\u00ed kapaliny z\u00e1le\u017e\u00ed stejn\u011b jako na kovu. Mezi typick\u00e9 korozivn\u00ed l\u00e1tky pat\u0159\u00ed:<\/p>\n

    \n
  • Chloridy<\/strong> z kohoutkov\u00e9 vody nebo nekvalitn\u00edch p\u0159\u00edsad. <\/li>\n
  • S\u00edrany nebo dusi\u010dnany<\/strong> z nevhodn\u00fdch inhibitor\u016f <\/li>\n
  • N\u00edzk\u00e9 nebo vysok\u00e9 pH<\/strong> (pod 6 nebo nad 9 po\u0161kozuje oxid hlinit\u00fd) <\/li>\n
  • Rozpu\u0161t\u011bn\u00fd kysl\u00edk<\/strong> kter\u00e1 spou\u0161t\u00ed elektrochemick\u00e9 reakce <\/li>\n<\/ul>\n

    Kdy\u017e nap\u0159\u00edklad pH chladic\u00ed kapaliny klesne pod 6,5, za\u010dne se rozpou\u0161t\u011bt p\u0159irozen\u00e1 vrstva oxidu na hlin\u00edku, \u010d\u00edm\u017e se obna\u017een\u00fd kov vystavuje \u00fatok\u016fm. Koroze se pak rychle \u0161\u00ed\u0159\u00ed mikrokan\u00e1lky.<\/p>\n

    Environment\u00e1ln\u00ed a mechanick\u00e9 faktory<\/h3>\n

    Koroze se tak\u00e9 zrychluje s:<\/p>\n

      \n
    • Teplotn\u00ed cyklov\u00e1n\u00ed <\/li>\n
    • Vysok\u00e1 turbulence proud\u011bn\u00ed <\/li>\n
    • Sm\u00ed\u0161en\u00e9 kovov\u00e9 spoje (hlin\u00edk + nerez nebo m\u011b\u010f) <\/li>\n
    • \u0161patn\u00e9 t\u011bsnic\u00ed materi\u00e1ly, kter\u00e9 absorbuj\u00ed vlhkost <\/li>\n<\/ul>\n

      Ka\u017ed\u00fd z t\u011bchto faktor\u016f m\u016f\u017ee z mal\u00e9 z\u00e1vady ud\u011blat z\u00e1va\u017en\u00e9 selh\u00e1n\u00ed.<\/p>\n

      Pro\u010d je koroze rizikem pro v\u00fdkon?<\/h2>\n

      Mnoho in\u017een\u00fdr\u016f si mysl\u00ed, \u017ee koroze m\u00e1 pouze kosmetick\u00fd v\u00fdznam, ale v chladic\u00edch syst\u00e9mech p\u0159\u00edmo ovliv\u0148uje p\u0159enos tepla a dlouhodobou spolehlivost.<\/p>\n

      Koroze sni\u017euje tepeln\u00fd v\u00fdkon hlin\u00edku, oslabuje jeho strukturu a vn\u00e1\u0161\u00ed vodiv\u00e9 \u010d\u00e1stice, kter\u00e9 mohou ucpat mikrokan\u00e1lky nebo zkratovat elektronick\u00e9 sou\u010d\u00e1stky.<\/strong><\/p>\n

      \"ru\u010dn\u011b
      Stylov\u00fd ru\u010dn\u011b vyr\u00e1b\u011bn\u00fd hn\u011bd\u00fd ko\u017een\u00fd batoh s akcenty mosazn\u00fdch p\u0159ezek na modern\u00edm displeji<\/figcaption><\/figure>\n<\/p>\n

      Dopad na \u00fa\u010dinnost syst\u00e9mu<\/h3>\n\n\n\n\n\n\n\n\n\n
      Korozn\u00ed \u00fa\u010dinek<\/th>\nV\u00fdsledek<\/th>\nDopad na syst\u00e9m<\/th>\n<\/tr>\n<\/thead>\n
      Nahromad\u011bn\u00ed oxid\u016f<\/td>\nNi\u017e\u0161\u00ed rychlost p\u0159enosu tepla<\/td>\nZv\u00fd\u0161en\u00e1 teplota za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n
      Ucp\u00e1n\u00ed kan\u00e1lu<\/td>\nSn\u00ed\u017een\u00fd pr\u016ftok<\/td>\nTvo\u0159\u00ed se hork\u00e1 m\u00edsta<\/td>\n<\/tr>\n
      Zten\u010den\u00ed st\u011bn<\/td>\nRiziko \u00faniku<\/td>\nProstoje syst\u00e9mu<\/td>\n<\/tr>\n
      Kontaminace kovov\u00fdmi ionty<\/td>\nElektrick\u00e9 riziko<\/td>\nPo\u0161kozen\u00ed obvod\u016f<\/td>\n<\/tr>\n
      Zbytky \u010d\u00e1stic<\/td>\nOpot\u0159eben\u00ed \u010derpadla<\/td>\nZv\u00fd\u0161en\u00ed n\u00e1klad\u016f na \u00fadr\u017ebu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      I tenk\u00e1 vrstva oxidu (pouh\u00fdch 10 mikron\u016f) m\u016f\u017ee sn\u00ed\u017eit tepelnou vodivost o a\u017e do 30%<\/strong>. U vysoce v\u00fdkonn\u00fdch za\u0159\u00edzen\u00ed, jako jsou baterie pro elektromobily nebo lasery, to sta\u010d\u00ed k v\u00e1\u017en\u00e9mu p\u0159eh\u0159\u00e1t\u00ed.<\/p>\n

      Dlouhodob\u00e9 riziko spolehlivosti<\/h3>\n

      Postupem \u010dasu vzniknou v d\u016fsledku koroze d\u011brn\u00e9 otvory, kter\u00e9 se rozrostou v praskliny. Jakmile dojde k \u00faniku, m\u016f\u017ee se chladic\u00ed kapalina dostat do elektroniky nebo izola\u010dn\u00edch materi\u00e1l\u016f, co\u017e vede ke katastrofick\u00e9mu selh\u00e1n\u00ed.<\/p>\n

      Jednou jsem kontroloval chladic\u00ed syst\u00e9m, kter\u00fd pou\u017e\u00edval neupravenou vodu, a vid\u011bl jsem z\u0159etelnou cestu koroze pod\u00e9l hlin\u00edkov\u00e9ho povrchu - b\u011bhem jednoho roku chladic\u00ed kapalina vytekla do konektor\u016f a zp\u016fsobila selh\u00e1n\u00ed cel\u00e9ho modulu. N\u00e1klady na opravu desetkr\u00e1t p\u0159ev\u00fd\u0161ily cenu spr\u00e1vn\u00e9ho o\u0161et\u0159en\u00ed chladic\u00ed kapaliny.<\/p>\n

      Ztr\u00e1ty p\u0159i p\u0159enosu tepla v \u010d\u00edslech<\/h3>\n

      Porovnejme tepeln\u00fd v\u00fdkon p\u0159ed koroz\u00ed a po n\u00ed:<\/p>\n\n\n\n\n\n\n\n
      Stav<\/th>\nTepeln\u00e1 vodivost (W\/m-K)<\/th>\nN\u00e1r\u016fst teploty (\u00b0C)<\/th>\n<\/tr>\n<\/thead>\n
      Nov\u00e1 hlin\u00edkov\u00e1 deska<\/td>\n235<\/td>\n+5<\/td>\n<\/tr>\n
      Po 3 m\u011bs\u00edc\u00edch koroze<\/td>\n180<\/td>\n+9<\/td>\n<\/tr>\n
      Po 12 m\u011bs\u00edc\u00edch koroze<\/td>\n140<\/td>\n+13<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      S rostouc\u00edm oxidem prudce kles\u00e1 vodivost, co\u017e nut\u00ed \u010derpadla a ventil\u00e1tory pracovat intenzivn\u011bji a zvy\u0161uje celkovou spot\u0159ebu energie syst\u00e9mu.<\/p>\n

      Jak zabr\u00e1nit korozi hlin\u00edkov\u00fdch desek?<\/h2>\n

      Prevence koroze vy\u017eaduje jak chytr\u00fd n\u00e1vrh, tak disciplinovan\u00fd provoz. Nejde jen o materi\u00e1ly, ale o cel\u00e9 prost\u0159ed\u00ed syst\u00e9mu - od chemick\u00e9ho slo\u017een\u00ed chladic\u00ed kapaliny a\u017e po elektrickou izolaci.<\/p>\n

      Nejlep\u0161\u00edm zp\u016fsobem, jak zabr\u00e1nit korozi hlin\u00edkov\u00fdch chladic\u00edch desek, je udr\u017eovat kvalitu chladic\u00ed kapaliny, izolovat rozd\u00edln\u00e9 kovy a pou\u017e\u00edvat ochrann\u00e9 povlaky nebo eloxov\u00e1n\u00ed.<\/strong><\/p>\n

      \"modr\u00e1
      Stylov\u00e1 modr\u00e1 d\u017e\u00ednov\u00e1 bunda s barevn\u00fdmi vy\u0161\u00edvan\u00fdmi n\u00e1\u0161ivkami na p\u0159edn\u00ed a zadn\u00ed stran\u011b<\/figcaption><\/figure>\n<\/p>\n

      1. Pou\u017e\u00edvejte spr\u00e1vnou chladic\u00ed kapalinu<\/h3>\n

      Vyb\u00edrejte chladic\u00ed kapaliny s n\u00edzk\u00e1 elektrick\u00e1 vodivost<\/strong> a vestav\u011bn\u00e9 inhibitory koroze hlin\u00edku<\/strong>. Nejl\u00e9pe se osv\u011bd\u010duj\u00ed sm\u011bsi glykolu a vody (nap\u0159. 30-50% ethylen nebo propylenglykol) s vhodn\u00fdmi aditivy.<\/p>\n

      Nepou\u017e\u00edvejte oby\u010dejnou vodu z kohoutku.<\/strong> Obsahuje chloridy a miner\u00e1ly, kter\u00e9 ni\u010d\u00ed oxidov\u00fd film.<\/p>\n

      Doporu\u010den\u00e9 podm\u00ednky pro chladic\u00ed kapalinu:<\/p>\n\n\n\n\n\n\n\n\n
      Parametr<\/th>\nDoporu\u010den\u00fd rozsah<\/th>\n<\/tr>\n<\/thead>\n
      pH<\/td>\n7.0 - 8.5<\/td>\n<\/tr>\n
      Elektrick\u00e1 vodivost<\/td>\n< 500 \u00b5S\/cm<\/td>\n<\/tr>\n
      Obsah chlorid\u016f<\/td>\n< 25 ppm<\/td>\n<\/tr>\n
      Obsah s\u00edran\u016f<\/td>\n< 25 ppm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Chladic\u00ed kapalina by se m\u011bla vym\u011b\u0148ovat ka\u017ed\u00fd 12-24 m\u011bs\u00edc\u016f<\/strong>, v z\u00e1vislosti na z\u00e1t\u011b\u017eov\u00fdch cyklech. Monitorovac\u00ed soupravy mohou snadno m\u011b\u0159it pH a koncentraci iont\u016f.<\/p>\n

      2. Zabr\u00e1n\u011bn\u00ed galvanick\u00e9mu spojen\u00ed<\/h3>\n

      Vyvarujte se p\u0159\u00edm\u00e9ho p\u0159ipojen\u00ed hlin\u00edku k m\u011bd\u011bn\u00fdm nebo mosazn\u00fdm armatur\u00e1m. Pokud je m\u00edch\u00e1n\u00ed nutn\u00e9, pou\u017eijte dielektrick\u00e1 izolace<\/strong> - jako jsou plastov\u00e9 konektory, teflonov\u00e1 t\u011bsn\u011bn\u00ed nebo \u0161rouben\u00ed s povrchovou \u00fapravou.<\/p>\n

      Jednoduch\u00e9 vizu\u00e1ln\u00ed pravidlo: <\/p>\n

      \n

      \u201cPokud se dva kovy dotknou mokrou cestou, za\u010dne koroze.\u201d<\/p>\n<\/blockquote>\n

      I nepatrn\u00e9 rozd\u00edly elektrick\u00fdch potenci\u00e1l\u016f (milivolty) mohou v\u00fdrazn\u011b urychlit galvanickou korozi.<\/p>\n

      3. Udr\u017eov\u00e1n\u00ed spr\u00e1vn\u00e9 pr\u016ftokov\u00e9 rychlosti<\/h3>\n

      Jak bylo uvedeno ve studi\u00edch optimalizace pr\u016ftoku, rychlost proud\u011bn\u00ed ovliv\u0148uje p\u0159enos tepla i erozi. Vysok\u00e9 rychlosti proud\u011bn\u00ed mohou strh\u00e1vat ochrann\u00e9 vrstvy oxid\u016f.<\/p>\n

      Udr\u017eujte pr\u016ftok v doporu\u010den\u00fdch mez\u00edch - obvykle 1-4 l\/min na desku<\/strong>. T\u00edm se zachov\u00e1v\u00e1 turbulence pro chlazen\u00ed, ale nedoch\u00e1z\u00ed k mechanick\u00e9mu opot\u0159eben\u00ed povrchu.<\/p>\n

      4. Aplikace ochrann\u00fdch n\u00e1t\u011br\u016f<\/h3>\n

      Eloxov\u00e1n\u00ed nebo chemick\u00e1 p\u0159em\u011bna povlaku vytv\u00e1\u0159\u00ed odolnou oxidovou bari\u00e9ru. Tyto povlaky blokuj\u00ed p\u0159\u00edm\u00fd kontakt chladic\u00ed kapaliny s kovem.
      \nPro \u0161pi\u010dkov\u00e9 aplikace, niklov\u00e9 nebo keramick\u00e9 povlaky<\/strong> poskytuj\u00ed je\u0161t\u011b siln\u011bj\u0161\u00ed obranu.<\/p>\n

      Jednou jsem testoval d\u00e1vku eloxovan\u00fdch desek a zjistil jsem, \u017ee m\u00edra koroze klesla o 85%<\/strong> ve srovn\u00e1n\u00ed s hol\u00fdm hlin\u00edkem ve stejn\u00e9 chladic\u00ed kapalin\u011b.<\/p>\n

      5. Pravideln\u00e1 kontrola a \u00fadr\u017eba<\/h3>\n

      Ka\u017ed\u00fd syst\u00e9m by m\u011bl m\u00edt jednoduch\u00fd pl\u00e1n \u00fadr\u017eby:<\/p>\n

        \n
      • M\u011bs\u00ed\u010dn\u011b kontrolujte \u010distotu chladic\u00ed kapaliny <\/li>\n
      • M\u011b\u0159en\u00ed pH \u010dtvrtletn\u011b <\/li>\n
      • Proplachov\u00e1n\u00ed a dopl\u0148ov\u00e1n\u00ed ka\u017ed\u00fdch 12-18 m\u011bs\u00edc\u016f <\/li>\n
      • Zkontrolujte, zda armatury net\u011bsn\u00ed nebo nem\u011bn\u00ed barvu. <\/li>\n<\/ul>\n

        Pravideln\u00e1 p\u00e9\u010de zabra\u0148uje tomu, aby se z mal\u00fdch chemick\u00fdch nerovnov\u00e1h staly mechanick\u00e9 poruchy.<\/p>\n

        Jak\u00e9 nov\u00e9 n\u00e1t\u011bry odol\u00e1vaj\u00ed korozi?<\/h2>\n

        S rostouc\u00ed kompaktnost\u00ed a v\u00fdkonnost\u00ed syst\u00e9m\u016f roste pot\u0159eba lep\u0161\u00ed ochrany proti korozi. Tradi\u010dn\u00ed eloxov\u00e1n\u00ed funguje dob\u0159e, ale nov\u011bj\u0161\u00ed povlaky nab\u00edzej\u00ed siln\u011bj\u0161\u00ed odolnost a lep\u0161\u00ed tepeln\u00e9 vlastnosti.<\/p>\n

        Nov\u00e9 korozivzdorn\u00e9 povlaky pro hlin\u00edk zahrnuj\u00ed plazmov\u00e9 keramick\u00e9 povlaky, elektrolytick\u00e9 niklov\u00e1n\u00ed a hybridn\u00ed nanokeramick\u00e9 vrstvy s vysokou p\u0159ilnavost\u00ed a n\u00edzk\u00fdm tepeln\u00fdm odporem.<\/strong><\/p>\n

        \"\u010dern\u00e9
        Stylov\u00e9 \u010dern\u00e9 ko\u017een\u00e9 kotn\u00edkov\u00e9 boty s bo\u010dn\u00edm zipem, ide\u00e1ln\u00ed k neform\u00e1ln\u00edmu nebo poloform\u00e1ln\u00edmu oble\u010den\u00ed.<\/figcaption><\/figure>\n<\/p>\n

        1. Plazmov\u00e1 elektrolytick\u00e1 oxidace (PEO)<\/h3>\n

        Tento proces, zn\u00e1m\u00fd tak\u00e9 jako mikroobloukov\u00e1 oxidace, vytv\u00e1\u0159\u00ed na povrchu hlin\u00edku hustou keramickou vrstvu. Je mnohem tvrd\u0161\u00ed a stabiln\u011bj\u0161\u00ed ne\u017e standardn\u00ed eloxov\u00e1n\u00ed.<\/p>\n

        V\u00fdhody:<\/strong><\/p>\n

          \n
        • Vynikaj\u00edc\u00ed odolnost proti d\u016flkov\u00e9 korozi a opot\u0159eben\u00ed <\/li>\n
        • Odol\u00e1v\u00e1 teplot\u00e1m a\u017e do 500 \u00b0C <\/li>\n
        • Elektricky izoluj\u00edc\u00ed, ale tepeln\u011b vodiv\u00e9 <\/li>\n<\/ul>\n

          PEO se nyn\u00ed pou\u017e\u00edv\u00e1 v letectv\u00ed a v chladic\u00edch syst\u00e9mech pro elektromobily, kde je d\u016fle\u017eit\u00e1 dlouhodob\u00e1 stabilita.<\/p>\n

          2. Elektrolytick\u00e9 niklov\u00e1n\u00ed (ENP)<\/h3>\n

          ENP vytv\u00e1\u0159\u00ed jednotnou kovovou bari\u00e9ru, kter\u00e1 zabra\u0148uje p\u0159\u00edm\u00e9mu kontaktu s chladic\u00ed kapalinou. Je ide\u00e1ln\u00ed pro sm\u00ed\u0161en\u00e9 kovov\u00e9 syst\u00e9my, proto\u017ee blokuje galvanickou vazbu.<\/p>\n\n\n\n\n\n\n\n\n
          Majetek<\/th>\nElektrolytick\u00fd nikl<\/th>\nStandardn\u00ed eloxov\u00e1n\u00ed<\/th>\n<\/tr>\n<\/thead>\n
          Odolnost proti korozi<\/td>\nVynikaj\u00edc\u00ed (pH 4-9)<\/td>\nDobr\u00fd (pH 6-8)<\/td>\n<\/tr>\n
          Tepeln\u00e1 vodivost<\/td>\nM\u00edrn\u00e1<\/td>\nVysok\u00e1<\/td>\n<\/tr>\n
          Tvrdost povrchu<\/td>\nVelmi vysok\u00e1<\/td>\nSt\u0159edn\u00ed<\/td>\n<\/tr>\n
          Tlou\u0161\u0165ka povlaku<\/td>\n10-30 \u00b5m<\/td>\n5-15 \u00b5m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          ENP se \u010dasto kombinuje s vrchn\u00edm polymern\u00edm t\u011bsn\u011bn\u00edm pro zv\u00fd\u0161en\u00ed chemick\u00e9 odolnosti.<\/p>\n

          3. Hybridn\u00ed nanokeramick\u00e9 povlaky<\/h3>\n

          Ned\u00e1vn\u00fd v\u00fdvoj v oblasti nanotechnologi\u00ed umo\u017e\u0148uje nan\u00e1\u0161et na povrchy povlaky s tenk\u00e9 keramick\u00e9 vrstvy<\/strong> s nano\u010d\u00e1sticemi. Tyto povlaky zaji\u0161\u0165uj\u00ed silnou odolnost proti korozi, ani\u017e by byl ob\u011btov\u00e1n p\u0159enos tepla.<\/p>\n

          Kl\u00ed\u010dov\u00e9 vlastnosti:<\/p>\n

            \n
          • Vysok\u00e1 p\u0159ilnavost k hlin\u00edku <\/li>\n
          • Minim\u00e1ln\u00ed vliv na tepelnou vodivost <\/li>\n
          • Kompatibiln\u00ed s vodn\u00edmi glykolov\u00fdmi a dielektrick\u00fdmi chladic\u00edmi kapalinami. <\/li>\n
          • Samoregenera\u010dn\u00ed mikrostruktury p\u0159i teplotn\u00edch cyklech <\/li>\n<\/ul>\n

            V laboratorn\u00edch testech hybridn\u00ed povlaky prodlou\u017eily \u017eivotnost proti korozi na v\u00edce ne\u017e 100 %. 3 000 hodin p\u0159i testech solnou mlhou<\/strong>, p\u0159ibli\u017en\u011b \u010dty\u0159ikr\u00e1t d\u00e9le ne\u017e eloxovan\u00e9 povrchy.<\/p>\n

            4. Polymerokeramick\u00e9 kompozitn\u00ed vrstvy<\/h3>\n

            N\u011bkte\u0159\u00ed v\u00fdrobci nyn\u00ed pou\u017e\u00edvaj\u00ed Parylen-C<\/strong> nebo fluoropolymerov\u00e9 vrchn\u00ed n\u00e1t\u011bry<\/strong> v kombinaci s keramick\u00fdmi z\u00e1kladn\u00edmi n\u00e1t\u011bry. Tyto v\u00edcevrstv\u00e9 syst\u00e9my odol\u00e1vaj\u00ed jak chemick\u00e9mu napaden\u00ed, tak \u00fanav\u011b p\u0159i tepeln\u00e9m cyklov\u00e1n\u00ed.<\/p>\n

            Jsou ide\u00e1ln\u00ed pro:<\/p>\n

              \n
            • Chlazen\u00ed polovodi\u010d\u016f <\/li>\n
            • Mo\u0159sk\u00e9 nebo vlhk\u00e9 prost\u0159ed\u00ed <\/li>\n
            • Pr\u016fmyslov\u00e9 moduly s dlouhou \u017eivotnost\u00ed <\/li>\n<\/ul>\n

              Jsou sice o n\u011bco dra\u017e\u0161\u00ed, ale poskytuj\u00ed vynikaj\u00edc\u00ed odolnost pro kritick\u00e9 aplikace.<\/p>\n

              5. O\u0161et\u0159en\u00ed povrchu pasivac\u00ed<\/h3>\n

              Krom\u011b n\u00e1t\u011br\u016f m\u016f\u017ee odolnost proti korozi zv\u00fd\u0161it chemick\u00e1 pasivace pomoc\u00ed silanu nebo alternativn\u00edch chrom\u00e1t\u016f. Tyto \u00fapravy vytv\u00e1\u0159ej\u00ed tenkou molekul\u00e1rn\u00ed bari\u00e9ru, kter\u00e1 odpuzuje vlhkost a ionty.<\/p>\n

              A\u010dkoli nejsou tak pevn\u00e9 jako n\u00e1t\u011bry, snadno se aplikuj\u00ed a jsou \u00fa\u010dinn\u00e9 pro levn\u00e9 syst\u00e9my.<\/p>\n

              Z\u00e1v\u011br<\/h2>\n

              Hlin\u00edkov\u00e9 chladic\u00ed desky koroduj\u00ed rychleji, proto\u017ee snadno reaguj\u00ed s chladic\u00edmi kapalinami a jin\u00fdmi kovy. Kl\u00ed\u010dem k trvanlivosti je kontrola chemie, izolace materi\u00e1l\u016f a ochrana povrch\u016f. Modern\u00ed povlaky, jako jsou PEO, ENP a nanokeramick\u00e9 vrstvy, nyn\u00ed nab\u00edzej\u00ed \u00fa\u010dinnou obranu a udr\u017euj\u00ed chladic\u00ed syst\u00e9my stabiln\u00ed, \u00fa\u010dinn\u00e9 a spolehliv\u00e9 po dlouh\u00e1 l\u00e9ta.<\/p>","protected":false},"excerpt":{"rendered":"

              Stylish black leather ankle boots with block heels ideal for fall fashion When cooling systems age too fast, performance drops, and maintenance costs rise. Many engineers notice aluminum plates corrode sooner than expected, even in closed systems. Aluminum liquid cooling plates corrode faster because of electrochemical reactions between aluminum and coolant impurities, especially when galvanic […]<\/p>\n","protected":false},"author":6,"featured_media":25486,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-25488","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/25488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=25488"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/25488\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/25486"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=25488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=25488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=25488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}