Electroplating ndi njira yomwe chitsulo chimachokera ku electrolyte pogwiritsa ntchito njira yomwe imagwiritsidwa ntchito ndikuyika pamwamba pa chinthucho kuti chipeze chitsulo chophimba.
Zomata:
Zinc imawonongeka mosavuta mu ma acid, alkalis, ndi sulfide.Zinc wosanjikiza nthawi zambiri amadutsa.Pambuyo podutsa mu njira ya chromate, filimu yodutsamo yomwe imapangidwa sikophweka kuti igwirizane ndi mpweya wonyowa, ndipo mphamvu yotsutsa-kudzimbiri imakulitsidwa kwambiri.Mu mpweya wouma, nthaka imakhala yokhazikika komanso yosavuta kusintha mtundu.M'mlengalenga wamadzi ndi chinyezi, umakhudzidwa ndi mpweya kapena carbon dioxide kupanga oxide kapena alkaline carbonic acid film, yomwe ingalepheretse zinc kuti isapitirire kukhala oxidize ndikugwira ntchito yoteteza.
Zida zogwirira ntchito: zitsulo, zitsulo
chrome:
Chromium imakhala yokhazikika mumlengalenga, alkali, nitric acid, sulfide, carbonate solutions ndi organic acids, ndipo imasungunuka mosavuta mu hydrochloric acid ndi sulfuric acid yotentha kwambiri.Choyipa chake ndikuti ndizovuta, zolimba, komanso zosavuta kugwa.Kuyika chromium molunjika pamwamba pazigawo zachitsulo monga anti-corrosion wosanjikiza sikwabwino.Nthawi zambiri, ma electroplating amitundu yambiri (ie copper plating → nickel → chromium) amatha kukwaniritsa cholinga chopewera dzimbiri ndi kukongoletsa.Pakalipano, amagwiritsidwa ntchito kwambiri kupititsa patsogolo kukana kwa magawo, kukula kwa kukonza, kuwala kowala ndi zokongoletsera.
Zida zomwe zingagwiritsidwe ntchito: chitsulo chachitsulo, mkuwa ndi aloyi yamkuwa ziro zokongoletsa za chrome plating, plating ya chrome yosamva
Copper plating:
Mkuwa siwokhazikika mumlengalenga, ndipo nthawi yomweyo, uli ndi mphamvu zabwino kwambiri ndipo sungathe kuteteza zitsulo zina ku dzimbiri.Komabe, mkuwa umakhala ndi magetsi apamwamba kwambiri, wosanjikiza wa mkuwa ndi wothina komanso wabwino, umagwirizanitsidwa bwino ndi chitsulo choyambirira, ndipo uli ndi ntchito yabwino yopukuta. electroplating ina, ngati wosanjikiza zoteteza kuteteza carburization, ndi kuchepetsa mikangano kapena zokongoletsera pa kunyamula.
Zida zomwe zingagwiritsidwe ntchito: chitsulo chakuda, mkuwa ndi mkuwa wa alloy nickel-plated, chrome-plated pansi wosanjikiza.
Nickel plating:
Nickel imakhala ndi kukhazikika kwamankhwala m'mlengalenga ndi lye, ndipo sikophweka kusintha mtundu, koma imasungunuka mosavuta mumadzimadzi a nitric acid.N'zosavuta kuti passivate mu anaikira nitric asidi, ndipo kuipa kwake ndi porosity.Kuti mugonjetse vutoli, mutha kugwiritsa ntchito zitsulo zosanjikiza zambiri, ndipo faifi tambala ndiye gawo lapakati.Nickel plating wosanjikiza imakhala yolimba kwambiri, ndiyosavuta kupukutira, imakhala yowunikira kwambiri ndipo imatha kuwonjezera mawonekedwe ndi kukana, komanso imakhala ndi kukana kwa dzimbiri.
zipangizo ntchito: akhoza waikamo pamwamba pa zinthu zosiyanasiyana, monga: zitsulo-nickel-based aloyi, kasakaniza wazitsulo nthaka, zotayidwa, magalasi, zoumba, pulasitiki, semiconductors ndi zipangizo zina.
Kupaka malata:
Malata ali ndi kukhazikika kwa mankhwala.Sizophweka kupasuka mu njira zochepetsera za sulfuric acid, nitric acid ndi hydrochloric acid.Sulfides alibe mphamvu pa malata.Tin imakhazikikanso mu ma organic acid, ndipo zopangira zake sizowopsa.Amagwiritsidwa ntchito kwambiri muzotengera zamakampani azakudya ndi magawo a ndege, mayendedwe ndi zida zamawayilesi.Itha kugwiritsidwa ntchito kuteteza mawaya amkuwa kuti asakhudzidwe ndi sulfure mu rabala komanso ngati chotchingira chotchinga pamalo osagwiritsa ntchito nitriding.
Zida zogwirira ntchito: chitsulo, mkuwa, aluminiyamu ndi ma aloyi awo
Copper tin alloy:
Copper-tin alloy electroplating ndikuyika aloyi yamkuwa pazigawo zake popanda kupaka faifi tambala, koma mwachindunji chromium plating.Nickel ndi chitsulo chosowa komanso chamtengo wapatali.Pakali pano, electroplating ya copper-tin alloy electroplating imagwiritsidwa ntchito kwambiri m'makampani opanga ma electroplating m'malo mwa nickel plating, yomwe ili ndi luso loletsa dzimbiri.
Zida zogwirira ntchito: zitsulo, mkuwa ndi aloyi zamkuwa.
Nthawi yotumiza: Apr-03-2023