Lub tswv yim ntawm hard chrome electroplating rau lub tshuab nqus tsev electroplating hluav taws xob cua sov raj
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Lub tswv yim ntawm hard chrome electroplating rau lub tshuab nqus tsev electroplating hluav taws xob cua sov raj
Thaum lub sij hawm electroplating, cov hlau plated yog siv los ua cov anode, uas yog oxidized rau hauv cations thiab nkag mus rau hauv cov tshuaj electroplating; cov khoom hlau yuav tsum tau plated yog siv los ua cov cathode, thiab cov cations ntawm cov hlau plated raug txo rau ntawm cov hlau nto los ua ib txheej plated. Txhawm rau tshem tawm qhov cuam tshuam ntawm lwm cov cations thiab ua kom cov txheej txheej tsis sib xws thiab ruaj khov, cov tshuaj uas muaj hlau cations hauv txheej yuav tsum tau siv los ua cov tshuaj electroplating kom cov concentration ntawm cov hlau cations hauv txheej tsis hloov. Lub hom phiaj ntawm electroplating nyuaj chrome yog txheej txheej hlau ntawm lub substrate thiab hloov cov khoom nto los yog qhov ntev ntawm lub substrate. Electroplating tuaj yeem txhim kho corrosion kuj ntawm cov hlau, nce hardness, tiv thaiv hnav, txhim kho hluav taws xob conductivity, lubrication, tshav kub tsis kam, thiab zoo nkauj nto.
Cov yam ntxwv ntawm ntau yam txheej txheem ntawm lub tshuab nqus tsev electroplating hluav taws xob cua sov raj:
(1) Ntau yam txheej txheem txheej txheem yuav tsum muaj ib qho chaw nqus tsev los xyuas kom meej tias qhov kev txav ntawm vapor molecules tsim thaum lub sij hawm cua sov evaporation los yog sputtering txheej txheem ntawm cov ntaub ntawv uas yuav tsis raug collided, thaiv thiab cuam tshuam los ntawm ib tug loj tus naj npawb ntawm cov roj molecules nyob rau hauv lub huab cua, thiab tshem tawm cov kev tsis zoo ntawm impurities hauv huab cua.
(2) Ntau yam txheej txheej txheej txheem yuav tsum muaj qhov chaw evaporation lossis lub hom phiaj txhawm rau hloov cov evaporated film-forming khoom rau hauv roj. Vim qhov kev txhim kho txuas ntxiv ntawm qhov chaw lossis lub hom phiaj, kev xaiv ntau yam ntawm cov khoom siv ua yeeb yaj kiab tau nthuav dav heev. Seb nws yog hlau, hlau alloy, intermetallic compound, ceramic los yog organic tshuaj, ntau yam hlau films thiab dielectric films yuav evaporated, thiab kuj yuav siv tau tib lub sij hawm. Multilayer films yog tau los ntawm evaporating cov ntaub ntawv sib txawv.
(3) Rau cov khoom siv ua yeeb yaj kiab evaporated los yog sputtered, nyob rau hauv tus txheej txheem ntawm kev tsim ib zaj duab xis nrog lub workpiece yuav tsum plated, nws cov yeeb yaj kiab thickness tuaj yeem ntsuas thiab tswj tau ntau dua, txhawm rau xyuas kom meej qhov sib xws ntawm cov yeeb yaj kiab thickness.
(4) Txhua zaj duab xis tuaj yeem tswj tau qhov muaj pes tsawg leeg thiab cov khoom seem ntawm cov roj seem hauv cov txheej txheem los ntawm kev kho kom zoo, yog li tiv thaiv oxidation ntawm cov khoom evaporation, txo cov feem ntawm cov pa oxygen kom tsawg, thiab tseem tuaj yeem ua tau. ntim nrog inert gas thiab lwm yam, uas tsis tuaj yeem ua tiav rau cov txheej ntub dej.
(5) Vim yog kev txhim kho txuas ntxiv ntawm cov khoom siv txheej txheej, txheej txheej txheej tuaj yeem ua tau tas li, yog li txhim kho cov khoom tsim tawm, thiab tsis muaj kuab paug rau ib puag ncig thaum lub sijhawm tsim khoom.
(6) Vim tias zaj duab xis yog tsim nyob rau hauv lub tshuab nqus tsev, zaj duab xis muaj siab purity, zoo compactness thiab ci ntsa iab uas tsis muaj reprocessing, uas ua rau cov neeg kho tshuab thiab chemical zog ntawm cov zaj duab xis zoo dua electroplating thiab tshuaj films.
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