La dhajiyay 2016-12-22Waxaa la og yahay in Dacromet ay tahay xal aqueous ah oo la firdhi karo oo ka kooban flake zinc, flake aluminium iyo waxyaabo lagu daro.Qaybaha shaqada ka dib marka la durayo oo la buufiyo, ku daawaynaya 20min at 80 ℃ foornada hore ee kulayliyaha, 30min at 300 ℃ foornada.Samee chromium hexavalent wuxuu ahaa aalkolo adipic ah iyo hoos u dhigista dabiiciga ah ee dareeraha dacrometku kuma milmo biyaha.
Waa in la ogaadaa in hoos u dhigista chromium hexavalent ee chromium trivalent iyo trivalent chromium oxidation galay chromium hexavalent waa geedi socod dib loo rogi karo.Sidaa darteed, qaybta shaqada ee sintered, chromium trivalent ayaa sii wadi doonta in la okssaydheeyo ilaa chromium hexavalent, iyo chromium hexavalent waa kansar, sidaas darteed xiriirku wuxuu dhaawac u keeni doonaa caafimaadka.Sidaa darteed, xalka daahan ee chromium-ka kooban ee dhaqameed ma aha gebi ahaanba eber qiiqa, ilaa iyo inta jiritaanka chromium hexavalent, waxay saameyn gaar ah ku yeelan doontaa deegaanka iyo dadka, sidaas darteed, caannimada Dacromet bilaashka ah ee chrome waa lama huraan.
Iyadoo dadaallada ilaalinta deegaanka ee qaranku ay sii wadaan inay xoojiyaan, soosaarayaasha qaybaha baabuurta oo aad iyo aad u badan ayaa u baahan qaybo daboolan oo dacromet bilaash ah.Oo xitaa la sameeyay heerar farsamo oo daahan dacromet bilaash ah chrome.Sida Volkswagen GMW3359, GM7111M iwm.
Dacromet-ka bilaashka ah ee Chrome wuxuu inta badan raadiyaa maaddooyin kale halkii uu ka heli lahaa dareen-dhaqaaleedka chromic acid iyo isku-xidhka.Daboolka Dacromet ee bilaashka ah ee Chrome wuxuu inta badan adeegsadaa silikoon organic, silicon inorganic, molybdate, tungstate, fosfate sida binder, isla isticmaalka zinc / flake aluminium qolof leh oo ah qaybta ugu weyn ee buuxinta, iyo iyada oo loo marayo taxane ah daawaynta ka dib, si loo gaaro isla heer sare ah. iska caabbinta daxalka oo leh chromium-ka kooban Dacromet.
Tiknoolajiyada Dacromet ee bilaashka ah ee Chrome ma aha oo kaliya inay ka faa'iidaysato tikniyoolajiyadda chromium-dacromet, laakiin sidoo kale ka diyaarinta rinjiga, dahaarka, filimka, dahaarka laftiisa ayaa gebi ahaanba xor ka ah chromium hexavalent, dareenka dhabta ah ee xaqiijinta cagaarka aan sunta ahayn ee aan waxyeello lahayn.Marka laga eego aragtida deegaanka, baaxadda caalamiga ah ee Dacromet-ka bilaashka ah ee chrome halkii chrome dacromet jihada guud ma beddeli doonto, waxay keeni doontaa wareeg cusub oo ah tignoolajiyada ka hortagga daxalka ee kacaanka deegaanka.
Waqtiga boostada: Jan-13-2022