Lub tshuab nqus tsev txheej tshuab tau zoo zam qhov tshwm sim ntawm bipolar electrodes

Lub tshuab nqus tsev txheej tshuab tau zoo zam qhov tshwm sim ntawm bipolar electrodes

Yog tias qhov tshwm sim ntawm amphoteric electrode tsis tuaj yeem zam tau zoo, kev siv hluav taws xob loj heev yuav tshwm sim hauv cheeb tsam ntawm lub workpiece raws li qhov anode, thiab tshwj xeeb yuav tsum tau them nyiaj tshwj xeeb thaum plating ntau lub nroog nickel. Chromium yooj yim dua rau passivate dua npib tsib xee, yog li chrome plating ntawm chromium yuav tsum muaj kev ua kom zoo.

Kuj tseem muaj ntau qhov xwm txheej ntawm chrome plating ntawm chrome, xws li: hniav chrome plating yog siv rau theem nrab chrome plating thaum thawj qhov sib sib zog nqus plating muaj peev xwm tsis zoo; Txhawm rau coj mus rau hauv tus account ob qho tib si corrosion kuj thiab hnav tsis kam, tawv chrome plating yog siv rau ntawm cov mis nyuj chrome (yeem tsis muaj kab nrib pleb); Molybdenum thiab molybdenum alloy electroplating yuav tsum tau chrome plating thiab lwm yam.

Lub tshuab nqus tsev txheej yog feem ntau tom qab plating sulfate ci acid tooj liab

Feem ntau, tom qab plating sulfate ci acid tooj liab, cov organic zaj duab xis passivation txheej feem ntau yog tsim, uas yuav tsum tau muab tshem tawm. Tsis txhob ntseeg hauv kev tshaj tawm ntawm cov kua qaub tooj liab brighteners thov tias tsis tas yuav tshem cov yeeb yaj kiab tom qab plating, thiab tsis txhob xav txog cov txheej txheem tshem tawm zaj duab xis hauv cov txheej txheem tsim.

Vim tias txawm tias qhov kev daws teeb meem tshiab tsis tuaj yeem raug tshem tawm, nrog rau kev sib sau ntawm cov organic impurities nyob rau hauv cov kua tooj liab ci los yog qhov tsis sib xws ntawm qhov ntxiv brightener, ib txheej hydrophobic organic zaj duab xis kuj yuav raug tsim. Raws li peb txhua tus paub, polyethylene glycol yog ib qho tseem ceeb tivthaiv nyob rau hauv yuav luag tag nrho cov kua qaub tooj liab brighteners, thiab ntau npaum li cas ntawm polyethylene glycol nyob rau hauv txheej, qhov yooj yim nws yog tsim ib tug hydrophobic zaj duab xis.

Passivation ntawm txheej hauv qab ntawm lub tshuab nqus tsev coater. Qhov yooj yim dua passivated lub txheej, qhov phem lub zog ntawm lub txheej ntawm nws. Nickel yog cov hlau uas yooj yim rau passivate. Thaum lub sij hawm nickel plating txheej txheem, lub hwj chim-tawm khub yog me ntsis ntev, thiab cov nickel plating txheej yuav undergo tshuaj passivation nyob rau hauv cov tshuaj nickel plating;

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