Dab tsi yog cov xwm txheej rau kev tsim cov pinholes hauv hluav taws xob cua sov raj? Puas muaj qhov tsim ntawm pinholes vim qhov tsim ntawm npuas?

Dab tsi yog cov xwm txheej rau kev tsim cov pinholes hauv hluav taws xob cua sov raj? Puas muaj qhov tsim ntawm pinholes vim qhov tsim ntawm npuas?

Teb: Lub cim ntawm pinholes feem ntau yog tshwm sim los ntawm kev tuav cov npuas ntawm qhov chaw ntawm plated, tab sis qhov tsim ntawm npuas tsis tas yuav ua rau lub pinhole tsim. Vim tias qhov tsim ntawm pinholes yuav tsum muaj ob yam xwm txheej; Thawj kauj ruam yog los tsim cov npuas (tsuas yog hydrogen gas); Qhov thib ob generated npuas yuav adsorb mus rau lub plated daim. Yog tias cov npuas tsim tsis tuaj yeem nyob ntawm qhov chaw ntawm cov plated, tsis muaj pinholes yuav raug tsim. Thaum lub sij hawm electrolysis txheej txheem, xws li cyanide tooj liab plating thiab chromium plating, ib tug loj tus naj npawb ntawm hydrogen npuas yog generated; Tab sis tom qab lawv tau tsim, lawv tag nrho cov dej ntws sai sai, ua rau nws nyuaj rau nyob rau ntawm qhov chaw plated, yog li pinholes tsis tshua tsim.

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.

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