Hluav taws xob cua sov raj plated nrog nyuaj chromium
Tso lus
Hluav taws xob cua sov raj plated nrog nyuaj chromium
Vim qhov sib txuam ntawm ntau yam hlau ions thiab qhov nce ntxiv ntawm trivalent chromium, cov tshuaj chromium plating, cov tshuaj roughening siv ua ntej cov yas electroplating, thiab polishing tov rau tooj liab thiab nws cov alloys yog nquag mus rau kev laus, uas ua rau muaj kev poob qis hauv lawv. kev ua tau zoo thiab xav tau kev kho kom huv. Siv cov kev kho mob ib txwm muaj tuaj yeem ua rau muaj kuab paug loj, kev ua haujlwm nyuaj, thiab cov nqi siab. Los ntawm kev siv diaphragm electrolysis kev kho mob, hlau impurities thiab ntau tshaj trivalent chromium nyob rau hauv cov tshuaj yuav raug tshem tawm zoo. Cov khoom siv tshwj xeeb tuaj yeem tshem tawm cov ions tshwj xeeb xws li tooj liab. Kev sib xyaw ua ke ntawm ntau txoj hauv kev tsis tsuas yog daws qhov teeb meem muaj kuab paug xwb tab sis kuj txuag cov nqi tsim khoom.
Thaum plating nyuaj chromium, txhawm rau txhim kho qhov adhesion ntawm txheej thiab substrate, nws yog ib qho tsim nyog yuav tsum tau ua rov qab kho tam sim no ntawm cov khoom siv substrate. Ntawm qhov tod tes, qee cov hlau yuav yaj rau hauv cov tshuaj plating, thiab qhov tuab ntawm cov txheej txheej thickness, lub zog thiab lub sij hawm xav tau rau kev kho mob, thiab cov hlau ions ntau dua yuav raug tsim. Raws li lub sij hawm mus, cov ntsiab lus ntawm cov hlau hlau ions yuav siab dua thiab siab dua, thiab lub sij hawm no, lub peev xwm ntawm cov kev daws teeb meem plating yuav tsis zoo, qhov voltage kuj nce siab, thiab tam sim no efficiency txo, thaum lub trivalent chromium cov ntsiab lus kuj nce. .
Hauv cov kev daws teeb meem zoo nkauj chromium, vim yog kev siv cov tshuaj fluorinated feem ntau, cov tshuaj plating no tuaj yeem ua kom cov txheej hauv qab ntawm npib tsib xee plating, thiab lwm yam, txhawm rau tsim cov txheej txheem chromium plating ntau dua. Vim li no, activated dissolved hlau ions xws li npib tsib xee, tooj liab, los yog hlau kuj nyob rau hauv lub plating tov, uas ua rau ib tug nqaim khiav hauj lwm ntau thiab ib tug nyiam mus hlawv nyob rau hauv siab tam sim no cheeb tsam. Feem ntau, kev daws tsuas tuaj yeem ua tiav los ntawm kev tshem tawm ib feem ntawm cov txheej txheem plating thiab ntxiv nrog cov txheej txheem tshiab npaj plating.
