Kev cuam tshuam ntawm conductivity hauv electrophoretic txheej

Conductivity yog ib qho txheej txheem tseem ceeb heev hauv txheej txheem cathodic electrophoresis. Nws muaj kev sib raug zoo heev nrog lub hwj chim pov tseg, thiab lawv muaj kev cuam tshuam zoo ntawm cov khoom siv hluav taws xob, kev ruaj ntseg ntawm cov kua da dej thiab cov nyhuv txheej. Feem ntau hais lus, qhov siab dua qhov conductivity ntawm electrophoresis xim da dej, qhov nkag siab ntawm cov xim yuav ntau dua; ntawm qhov tsis sib xws, nws yog qhov opposite. Yog li ntawd, lub conductivity ntawm lub tank kua yuav tsum nruj me ntsis tswj nyob rau hauv lub ntau yam ntawm cov txheej txheem kev cai. Yog li nyob rau hauv cov txheej txheem loj ntawm electrophoretic txheej, cov conductivity ntawm electrophoretic txheej ntawm lub hwj chim?

Conductivity yog hais txog tus nqi ntawm conductivity nyob rau hauv 1cm nrug ntawm l square centimeters ntawm tus ncej nto, nyob rau hauv lub electrophoretic txheej zaus nyob rau hauv lub tank, UF kua, ncej kua thiab cov degree ntawm conductivity siv nyob rau hauv cov dej ntshiab los qhia cov degree ntawm kev nyuaj siab. cov conductivity, tab sis kuj tseem ceeb tshaj qhov hluav taws xob tsis kam qhia. Conductivity yog reciprocal ntawm tej yam kuj.

Kev tiv thaiv tshwj xeeb (Ω - cm) = 6 zaug 10 / conductivity, thiab conductivity yog ntsuas hauv μS / cm lossis uΩ- cm-1.

Lub conductivity ntawm electrophoretic xim tank kua yog muaj feem xyuam rau cov khib nyiab ntawm tank kua, pH tus nqi thiab cov ntsiab lus ntawm impurity ions, thiab lwm yam. Nws yog ib qho tseem ceeb ntawm cov txheej txheem tsis thiab yuav tsum tau tswj nyob rau hauv ib tug tej yam ntau yam, qhov luaj li cas ntawm ntau yam nyob ntawm seb. ntawm ntau hom xim electrophoretic, thiab qhov qis lossis siab conductivity ntawm cov kua tank tsis zoo, uas yuav cuam tshuam ncaj qha rau qhov zoo ntawm electrophoretic painting.

Cov nyhuv ntawm conductivity nyob rau hauv electrophoretic txheej:

1. Rau qee qhov, cov khoom siv hluav taws xob tuaj yeem txiav txim siab tus nqi ntawm cov xim uas tuaj yeem siv rau hauv qhov chaw ua haujlwm los ntawm kev ua luam dej mus rau ib qho twg.

2. Tsawg conductivity yuav txo qis tus nqi ntawm cathodic electrophoresis xim tso, ntawm qhov tsis tooj, siab conductivity yuav ua rau me ntsis nce tus nqi ntawm cathodic electrophoresis xim deposited.

3. Tank kua conductivity yog siab dhau los yog tsawg dhau, tab sis kuj nyob rau ntawm lub thickness ntawm electrophoresis xim zaj duab xis, tsos, ua luam dej nkag, thiab lwm yam., tshwj xeeb tshaj yog nrog lub tank kua conductivity nce, da dej nkag mus rau hauv lub da dej kuj nce, ces nws kuj kuj yog. thicker zaj duab xis thickness.

4. Kev ua haujlwm siab tsis zoo ntawm cov slurry feem ntau tshwm sim los ntawm cov ntsiab lus impurity siab lossis pH tsawg, thiab tseem tuaj yeem nrog cov kev hloov pauv txawv txav ntawm cov txheej txheem zoo, xws li txiv kab ntxwv tev, pinholes, lossis rov qab mus rau qhov tawg ntawm qhov hnyav. ..... thiab lwm yam phenomena. Nws yuav tsum tau tswj los ntawm ultrafilter nrog anode system.

Cov lus qhia saum toj no yog cov conductivity ntawm cathodic electrophoresis xim qee qhov teebmeem. Feem ntau hais lus, cov conductivity yuav tsum tau tswj nyob rau hauv thaj tsam ntawm 1200 ± 300μs / cm, vim hais tias cov conductivity tsuas yog nyob ntawm qhov zoo ntawm cov dej deionized ua ntej electrophoresis thiab rov ua dua cov xim nyob rau hauv lub electrophoresis tank yuav tsum tau khaws cia, yog li thaum lub conductivity siab. , nws tseem tuaj yeem tso tawm cov tshuaj ultrafiltration kom hloov kho.

Ntau yam ntawm cathodic electrophoresis coatings kuj muaj qhov zoo tshaj plaws tswj ntau yam ntawm cov conductivity ntawm da dej ua kua, raws li cov conductivity ntawm me me kev hloov, xws li ± 100us / cm yuav tsis cuam tshuam rau kev ua tau zoo ntawm txheej zaj duab xis, yog li cov kev tswj dav dav. dav, ± 30us / cm. da dej ua kua conductivity yog siab dhau los yog tsawg dhau ntawm lub thickness ntawm txheej zaj duab xis, qhov tsos thiab kev nkag mus ntawm zaj duab xis muaj kev cuam tshuam, nrog rau cov da dej ua kua conductivity nce, qhov nkag mus rau ntawm zaj duab xis kuj siab dua, lub thickness ntawm cov zaj duab xis. kuj yog cov thicker. Lub thickness ntawm zaj duab xis yuav kuj thicker. Tank kua conductivity tshaj qhov txwv siab tshaj ntawm cov nqi teev los yog siab, tuaj yeem siv los hloov cov dej deionized ultrafiltration tov kom txo tau, piv txwv li, 300t ntawm cov kua tank nrog dej deionized es tsis txhob 20t ntawm ultrafiltration tov, lub tank kua conductivity yuav ua tau. txo los ntawm ± 100us / cm.