Dab tsi yog qhov cuam tshuam ntawm hluav taws xob cua sov raj nplawm rau ntawm txheej?

Dab tsi yog qhov cuam tshuam ntawm hluav taws xob cua sov raj nplawm rau ntawm txheej?

20. Dab tsi yog qhov cuam tshuam ntawm kev nplawm ntawm cov txheej?

Teb: Kev sib xyaw yuav ua kom lub convection ntawm cov tshuaj, txo cov concentration polarization, thiab kuj txo cov cathodic polarization, uas yuav ua rau cov crystallization ntawm txheej los ua thicker. Txawm li cas los xij, nplawm tuaj yeem txo qhov concentration ntawm cov tshuaj nyob ze ntawm cathode, ua kom cov kev khiav hauj lwm tam sim no ceev, thiab yog li ua kom cov cathodic polarization ntawm cov tshuaj, tso cai rau electroplating nrog ntau dua tam sim no ceev.

21. Cov nyhuv ntawm cov kua kub ntawm lub txheej yog dab tsi?

Teb: Nyob rau hauv lwm yam kev hloov pauv, raws li qhov kub thiab txias nce, ion txav nrawm, qhov concentration polarization txo, thiab cathode polarization kuj txo. Nyob rau tib lub sijhawm, cov txheej txheem ion lub cev qhuav dej tau nrawm dua, kev ua haujlwm saum npoo ntawm ions thiab cathodes yog txhim kho, thiab crystallization ntawm txheej yuav coarser. Txawm li cas los xij, raws li qee yam kev mob, yog tias lub ntsiab ntsev ntawm kev daws teeb meem yog qhov kom zoo nrog cov txheej txheem crystallized ua ke kuj tseem tuaj yeem hloov kho tau. Kev nce hauv qhov kub thiab txias tuaj yeem txhim kho qhov tawg ntawm anode, ua rau kom muaj kev sib txuas ntawm cov tshuaj, thiab txo cov hydrogen nqus ntawm txheej.

22. Dab tsi yog qhov cuam tshuam ntawm cathode tam sim no ceev ntawm txheej?

Teb: Thaum lub cathodic tam sim no ceev tsawg dhau, lub cathodic polarization me me, thiab crystallization ntawm txheej yog ntxhib; Thaum lub cathode tam sim no ceev yog nce, cov nyhuv polarization yog txhim kho, thiab crystallization ntawm txheej yog zoo thiab nruj; Thaum nws loj heev, txheej yuav hlawv.

23. Feem ntau muaj cov txheej txheem "tu" ntawm cov txheej txheem electroplating, thiab lawv lub hom phiaj tseem ceeb yog dab tsi?

Teb: Tshem tawm cov kua seem uas txuas rau saum npoo ntawm lub workpiece kom tiv thaiv kev sib kis ntawm cov txheej txheem plating tom ntej.

24. Cov kev ntsuas twg yog siv los tshem tawm cov npuas hydrogen txuas rau saum npoo ntawm lub workpiece thaum lub sij hawm electroplating txheej txheem?

Teb: Cathode txav los yog cua nplawm yuav tsum tau siv los txo qhov tuav ntawm hydrogen npuas ntawm daim plating.

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