Yuav ua li cas thiaj ua tau ib qho hluav taws xob cua sov raj kom tau ib txheej txheej?

Yuav ua li cas thiaj ua tau ib qho hluav taws xob cua sov raj kom tau ib txheej txheej?

62. Dab tsi yog yam uas cuam tshuam rau kev muaj peev xwm tawg?

Teb: Cov yam tseem ceeb cuam tshuam rau kev muaj peev xwm dispersion muaj xws li geometric thiab electrochemical yam. Geometric yam feem ntau yog xa mus rau cov duab ntawm lub plating da dej, cov duab ntawm lub anode, cov duab ntawm qhov chaw, thiab kev sib nrig sib txoj hauj lwm thiab kev ncua deb ntawm cov khoom thiab cov anode. Nws cov ntsiab lus suav nrog kev tso tawm tawm, cov nyhuv ntug, thiab kev ncua deb ntawm qhov zoo thiab qhov tsis zoo electrodes, uas feem ntau cuam tshuam rau kev faib tawm tam sim no ntawm electroplating. Piv txwv li, thaum chrome plating, feem ntau yuav tsum tau xav txog yuav ua li cas rau nruab qhov chaw, dab tsi anode yuav siv, thiab txoj hauj lwm ntawm lub anode, tag nrho cov uas yog los txhim kho qhov kev faib tawm ntawm tam sim no thiab txhim khu lub peev xwm dispersion. Electrochemical yam muaj xws li polarization, tam sim no ntom, kua conductivity, thiab tam sim no efficiency. Feem ntau hais lus, nce cathodic polarization tuaj yeem txhim kho kev muaj peev xwm tawg. Kev ua kom ceev tam sim no tuaj yeem ua rau cathodic polarization thiab txhim kho muaj peev xwm dispersion. Thaum nce cov conductivity ntawm cov tshuaj tsis txo cov nyhuv anodic polarization, lub peev xwm dispersion tuaj yeem txhim kho. Yog tias qhov kev ua haujlwm tam sim no txo ​​qis nrog qhov nce ntawm qhov ceev tam sim no, txo qhov kev ua tau zoo tam sim no tuaj yeem txhim kho lub peev xwm dispersion.

63. Peb yuav ua li cas thiaj li tau txais cov txheej txheem sib xws?

Teb: Cov txheej txheem kom tau txais cov txheej txheem sib xws, ntxiv rau kev xaiv cov tshuaj tsim nyog muaj pes tsawg leeg thiab txhim kho cov qauv, kev ua haujlwm tsim nyog, dai qhov chaw, thiab siv qee qhov kev ntsuas tshwj xeeb, tseem ceeb heev hauv kev tsim khoom. Cov kev siv feem ntau yog: ① cuam tshuam tam sim no: Lub sij hawm luv luv cuam tshuam electroplating nrog cov tam sim no loj (2-3 zaus siab dua li tam sim no) thaum pib electroplating. ② Tsim nyog rau nruab thiab dai qhov chaw: khaws cov khoom nyob rau hauv qhov zoo tshaj plaws tam sim no faib lub xeev, thaum tsis pub cov roj tso tawm kom stagnate nyob rau hauv lub qhov muag tsis pom qhov thiab qhov chaw qis ntawm qhov chaw Kho qhov kev ncua deb ntawm cathode thiab anode kom ntau li ntau tau. txo qhov kev ncua deb ntawm qhov sib txawv ntawm cov cathode (piv txwv li qhov concave thiab convex ntawm cov khoom) thiab cov anode. ④ Siv "pictorial" anodes los txhim kho kev faib tawm tam sim no. ⑤ Siv kev tiv thaiv cathodic thiab tiv thaiv kev tiv thaiv kom txo tau qhov ceev tam sim no hauv cov cheeb tsam ntawm cov kab hluav taws xob.

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