Kakaretso:
Ho roala ka chromium e ntšoesale e fumaneha khoebong ka lilemo tse fetang 50.Mokhabiso oa mantlha oa chromium o motšo o hlalosoa ho Mil Std 14538 o kenyang chromium e ntšo ho tsoa hohexavalent chromiumelectrolyte.Lilemong tse leshome tse fetileng, ho bile le nts'etsopele ea khoebo ea li-depositi tse ntšo tsa chromium ho tsoa hochromium e nyenyaneelectrolyte.Pampiri ena e tla hlahloba litšobotsi tsa depositi le ho nahanela ts'ebetso ea tsena tse tšoanang, empamefuta e fapaneng ea chromium platingdepositi.
Selelekela
Beauty and the Beast (Sefora: La Belle et la Bête) ke pale ea tšōmo e ngotsoeng ke sengoli sa Lefora Gabrielle-Suzanne Barbot de Villeneuve 'me ea hatisoa ka 1740.tqothisana lehlokoa lehexavalentchromium-based black chromium plating process.
Setšoantšo sa 1 se bapisa ponahalo ea tharollo ea trivalent le hexavalent process.Ka ho le letšehali ke ts'ebetso ea chromium sulfate-based trivalent black chromium plating process.Mmala oa tharollo o boputsoa bo tebileng, tanka e batla e hloekile, 'me tharollo e tsitsitse.Re ile ra etsa qeto ea hore mokhoa ona o tla bitsoa Botle tlhahisong ena.
Ka ho le letona ho na le mokhoa oa ho roala ka chromium trioxide-based black chromium plating.'Mala oa tharollo o bofubelu bo bofubelu.Nakong ea electroplating, khase ea haedrojene ea fetoha, e ka hlahisang moholi o nang le chromium o nang le hexavalent.Moholi ona o tlameha ho laoloa ka lisebelisoa tsa ho kolobisa le kapa ka push-pull ventilation.Chromium e ntšo ea hexavalent, bonyane bakeng sa tlhahiso ena kaofela, e tla bitsoa e ntle ka ho fetisisa.
Setšoantšo sa 1 - Papiso ea lits'ebetso tsa chromium tse ntšo tse tharo le tse hexavalent.
Sepheo sa mosebetsi ona ke ho lekola li-depositi tse ling tse ntšo tsa chromium electroplating le ho fumana tšebeliso e sebetsang le ho tšoaneleha ha liphahlo tsena lits'ebetsong tsa kahare le kantle tsa likoloi le tsa khoebo.Ho tsepamisitsoe maikutlo holim'a litšobotsi tsa ts'ebetso ea 'mele, ho kenyeletsoa ts'ireletso ea kutu, khanyetso ea mongoapo, ho hanyetsa matheba le ponahalo ea li-depositi tse ntšo tsa chromium tse nang le hexavalent le trivalent-based.Liphetho li lokela ho sebetsa e le tataiso e sebetsang bakeng sa ho khetha motsoako o motle ka ho fetisisa oa liphahlo tse pentiloeng ho fihlela ts'ebetso e lebelletsoeng.Re boetse re batla ho tseba hore na li-depositi tse ntšo tsa chromium li bapisoa joang le mekhoa e meng ea ho roala e ntšo, ho kenyeletsoa PVD, jase e ntšo ea phofo le nickel e ntšo e se nang motlakase.
Ka morao
Lipatente tsa plating ea chromium e ntšo li qalile ka 1952. Patent ea pele e amanang le electroplating black chromium, e ile ea fuoa Gilbert le Buhman. likarolo tsa lithunya, likarolo tsa lithunya le lisebelisoa tsa sesole Rock Island Arsenal.1 Litokelo tse ling li ile tsa kenngoa ke Westinghouse Electric ka 1956 le Kewanee Oil Company (Harshaw Chemical), e fanoeng ka 1971.2,3 The Harshaw Chemical patent, qetellong e ile ea fetisetsoa ka M&T Chemicals, mme jwale e rekiswa tlasa lebitso la kgwebo la Atotech Chemical Econo-chrome BK.
Lipatente tsa pele tsatrivalent chromium platinge qalile ho tloha mathoasong a 1970. Gyllenspentz le Renton ba Albright le Wilson;hammoho le Tremmel ea OMI (eo hona joale e leng MacDermid Enthone), e ne e le e mong oa bo-pula-maliboho ba pele ba ho etsa nts'etsopele ea libate tse tharo tsa chromium electroplating.Mosebetsi oa Tremmel o ne o tsepamisitse maikutlo ho sebeliseng metsoako ea thiazole, athe Gyllenspentz le Renton ba ne ba tsepamisitse maikutlo ho sebeliseng formate, acetate, bromide le ammonium ho finyella depositi e ka sebelisoang khoebong. e sebelisoang hangata hona joale e bonolo ho e laola.
Papiso ea Ts'ebetso
Letlapa la 1 le bapisa mekhoa ea ts'ebetso ea liphetolelo tsa chloride le sulfate tsa trivalent black chromium le hexavalent black chromium process.3 Phapang ea pele le ea bohlokoa ka ho fetisisa ea ts'ebetso ke electrolyte.Ts'ebetso e nyane ea chromium e ntšo e sebelisa chloride kapa letsoai la sulfate le chromium bakeng sa electrolyte, ha chromium e ntšo e nang le hexavalent e sebelisa chromium trioxide (kapa chromic acid) bakeng sa karolo ea mantlha.Libate tsa trivalent li sebetsa ho pH ea 2-4 ha chromium e ntšo e hexavalent e sebetsa ka pH e ka tlase ho 1. Lithempereichara tsa ts'ebetso li tšoana le litharollo tsohle tse tharo.
Tobetsa mona ho ithuta:Phapang lipakeng tsa Trivalent Chromium le Hexavalent Chromium
Letlapa la 1 - Papiso ea ts'ebetso ea chloride Cr(III), sulfate Cr(III) le Cr(VI)
Mekhoa.
Ha e le ho lahlela le ho koahela, mekhoa ea trivalent black chromium e na le matla a matle a ho lahlela 'me e tla koahela likarolo ka ho feletseng ntle le tšebeliso ea li-anode tse khethehileng tse thusang.Meetso e tloaelehileng ea racking e ka sebelisoa.
Leha ho le joalo, ha ho joalo ka ts'ebetso ea hexavalent black chromium.Ho sebetsa hantle ho fokola ho lebisang ho hlokeng matla a ho lahlela le ho koahela.Ntle le lisebelisoa tse khethehileng tsa rack (ke hore, li-anode tse thusang), depositi e ntšo ea chromium e tla ba le mebala e mengata ea bohlooho le bohlooho / botšo, 'me likaroloana tse ngata tsa lik'hemik'hale li hloka ho leka-lekana bakeng sa botšo bo lekaneng holim'a mefuta eohle ea hona joale.
Mabapi le CheeYuen
E thehiloe Hong Kong ka 1969,CheeYuenke mofani oa tharollo bakeng sa tlhahiso ea karolo ea polasetiki le kalafo ea holim'a metsi.A hlomelloa ka mechine e tsoetseng pele le melapo tlhahiso (1 tooling le setsi sa ho bopa ente, 2 electroplating mela, 2 penta mela, 2 PVD line le ba bang) 'me e etelletsoe pele ke sehlopha se ikemiselitseng sa litsebi le litsebi, CheeYuen Surface Treatment e fana ka tharollo turnkey bakeng sa.chromed, ho penta&likarolo tsa PVD, ho tloha ho moralo oa lisebelisoa bakeng sa ho etsa thepa (DFM) ho isa ho PPAP 'me qetellong ho fihlela karolo ea ho fana ka thepa ho pota lefatše.
Pakiloeng keIATF16949, ISO9001leISO 14001le ho hlahlojoa leVDA 6.3leCSR, CheeYuen Surface Treatment e se e le mofani oa thepa ea tsebahalang le molekane oa maano oa mefuta e mengata e tsebahalang le baetsi ba indasteri ea likoloi, lisebelisoa le lihlahisoa tsa ho hlapa, ho kenyeletsoa Continental, ALPS, ITW, Whirlpool, De'Longhi le Grohe, etc.
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Nako ea poso: Feb-26-2024