titanium anode rau electroplating (1)
Lub ntsiab cai ua haujlwm yog yeej zoo ib yam rau txhua qhov kev thov electroplating. Qhov yuav tsum tau muaj hlau plating yog yaj nyob rau hauv lub tshuab hluav taws xob, lub plated hlau substrate yog siv los ua cov hluav taws xob tsis zoo, thiab qhov anode siv los ua cov hluav taws xob zoo, uas ua rau lub voj voog hloov mus hloov tam sim no. Kev hloov tshuaj lom neeg uas tshwm sim ib txhij nrog cov plating hauv tsev plating yog nag lossis daus ntawm oxygen nyob rau anode nto. Xws li: tooj liab npib tsib xee plating; kho kom zoo nkauj plating (trivalent chromium plating, hniav nyiaj hniav kub, tsom iav, kho vajtse plating); khib plating, chim plating kev nyob hauv txawv teb thov; electroforming (khoom kho hniav, hu rau bushings thiab stylus, thiab lwm yam.) Electroplated hard chrome; tshwj xeeb plating; electrophoretic txheej; dawb siv tooj liab plating thiab zoo li ntawd.
Titanium anode rau trivalent chromium plating
Muaj ob hom tseem ceeb ntawm trivalent chromium plating tshuab tam sim no siv hauv kev tsim tawm: chloride systems thiab sulfate systems.
Ob qhov system muaj lawv tus kheej cov yam ntxwv. Kev daws ntawm chloride muaj zoo conductivity, hniav dawb txheej, thiab graphite yog siv los ua qhov taw qhia. Tus nqi slotting kuj qis dua. Txawm li cas los xij, piv nrog cov tshuaj sulfate, muaj cov pom tseeb hauv qab no qhov tsis xws:
(1) Thaum lub sijhawm ua haujlwm electroplating txheej txheem chloride system, chlorine roj teeb meem rau tib neeg lub cev yuav tsim tawm, ua rau muaj cov pa phem hauv nruab nrab;
(2) Siv graphite ua qhov anode, vim tias graphite muaj cov pa oxygen siab dhau los ua ib qho tseem ceeb, nws yooj yim los ua cov hexavalent chromium, thiab kev tsim tawm ntawm hexavalent chromium tsis tsuas cuam tshuam rau kev ruaj ntseg ntawm cov plating daws, tab sis kuj cuam tshuam cov tshuaj muaj teeb meem hauv cov tshuaj plating. Muaj kev txwv tsis pub muaj ntau ntxiv;
(3) Tom qab graphite tau siv ntev ntev vim los ntawm kev ua haujlwm ntawm xeb corrosion, thaj tsam ntawm qhov anode hloov, uas ua rau cov txheej txheem tsis ruaj khov, thiab tib lub sijhawm, lub pob slag kis tau lub plating daws;
(4) Chloride muaj qhov muaj zog tiv thaiv zoo rau cov khoom siv electroplating;
(5) Cov txheej txheem tshwj xeeb xav tau txhawm rau txhim kho cov tshuaj plating, thiab tus nqi txij nkawm yog siab.
Yog li no, ntau thiab ntau dua trivalent chromium plating txheej txheem siv cov tshuab ua kom muaj cov kua tshuaj sulfate thiab siv insoluble precious hlau-coated titanium anodes raws li cov anodes, uas cia li tsis yaj thaum ua cov txheej txheem electroplating. Yog li ntawd, lawv tseem hu ua" qhov ntev ruaj khov anodes" ;.
