Phapang ke efe lipakeng tsa plating ea zinki, cadmium plating, chromium plating, le nickel plating ea phala ea tšepe letšepe bar?
Litšobotsi: Zinc e batla e tsitsitse moeeng o omileng 'me ha e fetohe habonolo.Libakeng tsa metsi le mongobo, e sebetsana le oksijene kapa carbon dioxide ho etsa li-oxide kapa lifilimi tsa alkaline zinc carbonate, tse ka thibelang zinki ho tsoela pele ho oxidize le ho phetha karolo ea ho sireletsa.Zinc e kotsing haholo ea ho bola ka acid, alkalis le sulfide.Hangata liphahlo tse entsoeng ka galvanized li kena kalafo ea passivation.Kamora ho fetella ho chromic acid kapa tharollo ea chromate, filimi ea passivation e entsoeng ha e amehe habonolo ke moea o mongobo, e matlafatsang matla a eona a ho thibela ho bola.Bakeng sa likarolo tsa selemo, likarolo tse tšesaane tse nang le marako (botenya ba lerako <0.5m), le likarolo tsa tšepe tse hlokang matla a phahameng a mechine, ho tlosoa ha haedrojene ho tlameha ho etsoa, athe likarolo tsa koporo le tsa koporo li ka 'na tsa se ke tsa hloka ho tlosoa ha hydrogen.Zinc plating e na le litšenyehelo tse tlase, ts'ebetso e bonolo, le litholoana tse ntle.Monyetla o tloaelehileng oa zinki o batla o le mpe, ka hona, ho roala zinki ke ho roala litšepe tse ngata.Kopo: Galvanizing e sebelisoa haholo maemong a sepakapaka le libakeng tse ling tse ntle.Empa ha ea lokela ho sebelisoa e le karolo ea likhohlano
2.Cadmium plating
Litšobotsi: Bakeng sa likarolo tse kopanang le sepakapaka sa leoatle kapa metsi a leoatle, 'me metsing a chesang a ka holimo ho 70 ℃, cadmium plating e batla e tsitsitse, e na le matla a ho thibela ho bola, ho tlotsa hantle,' me e qhibiliha butle ka ho hlapolla hydrochloric acid.Leha ho le joalo, e qhibiliha haholo ka asiti ea nitric, ha e qhibilihe ka har'a alkali, 'me li-oxide tsa eona le tsona ha li qhibilihe metsing.Ho roala ha Cadmium ho bonolo ho feta ho roala zinki, ho na le brittleness e fokolang ea hydrogen le ho khomarela ka matla.Ho feta moo, tlas'a maemo a itseng a electrolysis, seaparo sa cadmium se fumanoeng se setle ho feta ho roala zinki.Empa khase e hlahisoang ke cadmium nakong ea ho qhibiliha e chefo, ’me matsoai a cadmium a qhibilihang le ’ona a chefo.Tlas'a maemo a kakaretso, cadmium ke lesela la cathodic holim'a tšepe, le lesela la anodic sebakeng sa leoatle le mocheso o phahameng.Tšebeliso: Haholo-holo e sebelisoa ho sireletsa likaroloana ho senya sepakapaka se bakoang ke metsi a leoatle kapa metsoako e tšoanang ea letsoai le mouoane o tletseng metsi a leoatle.Likarolo tse ngata liindastering tsa boema-fofane, tsa ho tsamaea le tsa elektroniki, liliba le likarolo tse nang le likhoele li tlatsitsoe ka cadmium.E ka belisoa, ea phosphated, 'me ea sebelisoa e le karoloana ea pente, empa e ke ke ea sebelisoa e le lisebelisoa tsa tafole.
Litšobotsi: Chromium e tsitsitse haholo libakeng tse mongobo, alkaline, nitric acid, sulfide, carbonate solutions, le organic acids, 'me e qhibiliha habonolo ka hydrochloric acid le hot concentrated sulfuric acid.Tlas'a ketso ea hona joale e tobileng, haeba lesela la chromium le sebelisoa e le anode, le qhibiliha habonolo ka tharollo ea caustic soda.Lera la chromium le na le ho khomarela ka matla, boima bo phahameng, 800-1000V, ho hanyetsa ho apara hantle, ho bonahatsa khanya e matla, le ho hanyetsa mocheso o phahameng.Ha e fetole 'mala o ka tlase ho 480 ℃, e qala ho oxidize ka holimo ho 500 ℃, mme e fokotsa thata ho thata ho 700 ℃.Bobebe ba eona ke hore chromium e thata, e brittle, 'me e na le monyetla oa ho arohana, e hlakileng haholoanyane ha e le tlas'a khatello e fapaneng.'Me e na le porosity.Metal chromium e fetisoa habonolo moeeng ho etsa filimi ea passivation, kahoo e fetola bokhoni ba chromium.Ka hona, chromium e fetoha seaparo sa cathodic holim'a tšepe.Kopo: Ho roala chromium ka ho toba holim'a likarolo tsa tšepe e le lera le thibelang ho bola ha hoa lokela, 'me hangata ho finyelloa ka ho sebelisa li-electroplating tse ngata (ke hore, koporo ea koporo → nickel → chromium) ho finyella sepheo sa ho thibela le ho khabisa.Hajoale, e sebelisoa haholo ho ntlafatsa ho hanyetsa likarolo tsa likarolo, ho lokisa litekanyo, ho bonahatsa leseli le mabone a khabisitsoeng.
nickel plating
Litšobotsi: Nickel e na le botsitso bo botle ba lik'hemik'hale sepakapakeng le tharollo ea alkaline, ha e fetoloe habonolo, 'me e na le oxidized feela ka mocheso o ka holimo ho 600 ° C. E qhibiliha butle-butle ka sulfuric acid le hydrochloric acid, empa e qhibiliha habonolo ka ho hlapolla nitric acid.Ho bonolo ho feta ka har'a asiti e kopaneng ea nitric mme ka hona e na le khanyetso e ntle ea kutu.Ho roala ha nickel ho thata haholo ebile ho bonolo ho e sebelisa.
New Gapower Metal Khampani e sebetsa ka thata ho fana ka liphaephe tsa tšepe tse nang le chrome tse pentiloeng, tse galvanized, tsa nickel le litšepe tse chitja.Khamphani e na le thepa ea lithane tse 20000 tsa lipeipi tsa tšepe tse chitja.Re ka fana ka litlhaloso tse fapaneng tsa liphaephe tsa tšepe, litšepe tse chitja, lipeipi tsa tšepe tse bentšitsoeng, le li-shafts tse bentšitsoeng, ho kenyeletsoa maemo a Amerika, Sejeremane, Majapane le Europe.Rea u amohela ho botsa.
Nako ea poso: Oct-17-2023