Taw qhia rau lub hauv paus ntsiab lus ntawm Kab rov tav Electroplating rau Hluav taws xob cua sov Tube Electroplating

Taw qhia rau lub hauv paus ntsiab lus ntawm Kab rov tav Electroplating rau Hluav taws xob cua sov Tube Electroplating

Tom qab tau hluav taws xob, cov tshuaj tiv thaiv electrode tshwm sim, ua rau ionization ntawm cov khoom tseem ceeb ntawm cov electrolyte. Ob txoj kev kab rov tav thiab ntsug electroplating thiab cov qauv yuav tsum muaj ob qho tib si zoo thiab tsis zoo electrodes. Txav mus rau qhov zoo ions mus rau theem tsis zoo ntawm cov tshuaj tiv thaiv electrode; Tus nqi tsis zoo ions txav mus rau theem zoo ntawm cov tshuaj tiv thaiv electrode, ua rau cov hlau tso tawm thiab tso pa tawm. Vim hais tias cov txheej txheem ntawm hlau deposition ntawm lub cathode yog muab faib ua peb kauj ruam: diffusion ntawm hlau hydration ions ntawm cathode; Cov kauj ruam thib ob yog rau cov hlau hydrated ions kom maj mam dehydrate thiab adsorb rau saum npoo ntawm cathode thaum lawv dhau los ntawm ob txheej; Qhov thib peb kauj ruam yog rau cov hlau ions adsorbed ntawm lub cathode nto kom tau txais electrons thiab nkag mus rau hauv cov hlau lattice. Los ntawm kev soj ntsuam tiag tiag, qhov xwm txheej ntawm lub tank ua haujlwm yog tias tsis muaj qhov pom ntawm cov tshuaj tiv thaiv hluav taws xob hloov pauv ntawm qhov cuam tshuam ntawm cov khoom electrode thiab cov kua electroplating kua. Nws cov qauv tuaj yeem piav qhia los ntawm ob txheej txheej txheem hauv electroplating txoj kev xav. Thaum lub electrode yog cathode thiab nyob rau hauv ib tug polarized lub xeev, cations nyob ib ncig ntawm cov dej molecules nrog zoo nqi yog teem nyob rau hauv ib qho kev txiav txim nyob ze lub cathode vim electrostatic rog, Hermann von Helmholtz (Cov txheej txheej ntawm Hermann von Helmholtz yog hais txog {{0 Txawm li cas los xij, vim tias tag nrho cov hluav taws xob muaj txiaj ntsig zoo nqa los ntawm cations hauv txheej txheej Helmholtz, nws cov nqi zoo tsis txaus los cuam tshuam cov nqi tsis zoo ntawm cov cathode. los ntawm cov cathode yog cuam tshuam los ntawm convection, thiab cov concentration ntawm cations nyob rau hauv cov tshuaj txheej yog siab tshaj li ntawm anions. Cov txheej no yog me dua txheej txheej ntawm Hermann von Helmholtz vim cov nyhuv electrostatic, thiab tseem cuam tshuam los ntawm thermal zog. Cov txheej txheem ntawm ions tsis yog nruj thiab zoo li txheej txheej ntawm Hermann von Helmholtz, uas yog hu ua diffusion txheej. Qhov ntawd yog hais tias, qhov nrawm nrawm ntawm cov tshuaj plating, lub thinner lub diffusion txheej, thiab lub thicker rov qab. Feem ntau, lub thickness ntawm diffusion txheej yog li ntawm 5-50 microns. Qhov kev ncua deb ntawm cathode yog ntxiv, thiab txheej txheej plating mus txog los ntawm convection yog hu ua lub ntsiab plating tov. Vim tias cov nyhuv convective ntawm cov tshuaj tuaj yeem cuam tshuam rau qhov sib xws ntawm cov tshuaj plating concentration. Copper ions nyob rau hauv lub diffusion txheej yog thauj mus rau txheej txheej ntawm Hermann von Helmholtz los ntawm diffusion thiab ion tsiv teb tsaws ntawm cov tshuaj plating. Cov tooj liab ions nyob rau hauv lub ntsiab plating tov yog thauj mus rau cathode nto los ntawm convection thiab ion tsiv teb tsaws. Thaum lub sij hawm kab rov tav electroplating txheej txheem, tooj liab ions nyob rau hauv lub plating tov yog thauj mus rau ib ncig ntawm lub cathode nyob rau hauv peb txoj kev los tsim ib ob txheej.

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