Dab tsi yog qhov muaj peev xwm dispersion thiab sib sib zog nqus plating muaj peev xwm ntawm hluav taws xob cua sov raj?
Tso lus
Dab tsi yog qhov muaj peev xwm dispersion thiab sib sib zog nqus plating muaj peev xwm ntawm hluav taws xob cua sov raj?
Yuav ua li cas tshem tawm pinholes hauv txheej?
Teb: Lub malfunction ntawm pinholes yog ib qho teeb meem nyuaj heev. Yog tias pinholes raug tsim los ntawm kev ua haujlwm tsis zoo lossis kev daws teeb meem, nws tseem yog ib qho yooj yim los kho. Tsuas yog hloov cov kev khiav hauj lwm tej yam kev mob los yog kho cov tshuaj muaj pes tsawg leeg kom tau raws li qhov yuav tsum tau yuav daws tau qhov teeb meem. Yog tias cov pinholes raug tsim los ntawm kev sib kis ntawm cov tshuaj nrog impurities (hlau lossis organic), lub hauv paus ua rau yuav tsum raug txheeb xyuas thiab cov tshuaj tsim nyog yuav tsum tau noj los daws qhov teeb meem. Ib txoj hauv kev yooj yim thiab siv tau yam tsis muaj impurities yog ntxiv cov tshuaj tiv thaiv pinhole. Tus neeg sawv cev ntub dej xws li sodium dodecyl sulfate tuaj yeem muab ntxiv rau glossy npib tsib xee plating, nrog rau ntau npaum li ntawm 001-0.05 g/L. Hauv cov nickel plating tsis tu ncua, 0.1 milliliters / liter ntawm hydrogen peroxide tuaj yeem ntxiv tom qab ua tiav kev ua haujlwm txhua hnub. Tom qab ntxiv, ua tib zoo do lub tov. Nyob rau hauv lub xub ntiag ntawm hydrogen peroxide (los yog lwm yam oxidants), qhov txo ntawm H ntxiv rau H2 ntawm lub cathode yog hloov los ntawm kev txo cov oxidants ntawm cathode, tshem tawm cov tiam ntawm hydrogen npuas thiab tsis txhob pinholes. Txawm li cas los xij, yog tias muaj ntau cov impurities hauv cov tshuaj plating, qhov ua tau zoo ntawm cov kev ntsuas no tseem yuav cuam tshuam, lossis txawm tias tsis muaj txiaj ntsig. Nyob rau hauv cov ntaub ntawv no, purification kev kho mob yuav tsum tau nqa tawm nyob rau hauv lub plating tov.
61. Dab tsi yog dispersion muaj peev xwm thiab sib sib zog nqus plating muaj peev xwm?
Teb: Dispersion muaj peev xwm hais txog cov thickness faib ntawm txheej ntawm ib feem. Qhov sib txawv ntawm cov txheej txheej thickness nyob rau hauv ntau qhov chaw ntawm ib feem qhia tau hais tias muaj peev xwm dispersion zoo, thaum qhov opposite qhia tias muaj peev xwm dispersion tsis zoo. Sib sib zog nqus plating muaj peev xwm, tseem hu ua zais peev xwm, hais txog cov xwm txheej ntawm plating hlau txheej ntawm ntau qhov chaw, tsis tau kawm txog lawv cov thickness faib. Nws thiab decentralization yog ob lub tswv yim, thiab yuav tsum tsis txhob sib cav ua ke. Tab sis kuj muaj qee qhov kev sib txuas ntawm lawv. Feem ntau hais lus, yog tias muaj peev xwm dispersion zoo, qhov sib sib zog nqus plating muaj peev xwm kuj zoo, thiab yog tias qhov sib sib zog nqus plating muaj peev xwm tsis zoo, lub peev xwm dispersion kuj tsis zoo.
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