Tsheb cab electrophoresis ntau lawm kab
Electrophoretic painting feem ntau muaj plaub txheej txheem ib txhij
1. Electrophoresis: nyob rau hauv qhov kev txiav txim ntawm cov hluav taws xob ncaj qha tam sim no, qhov zoo thiab qhov tsis zoo ntawm cov khoom siv colloidal rau qhov tsis zoo, kev taw qhia zoo, los yog ua luam dej.
2. Electrolysis: oxidation txo cov tshuaj tiv thaiv yog nqa tawm ntawm electrode, tab sis oxidation thiab txo qhov tshwm sim yog tsim ntawm electrode.
3.Electrodeposition: vim electrophoresis, cov nqi colloidal hais tau tsiv mus rau lub anode nyob ze ntawm lub template nto lub cev tso tawm electrons, thiab insoluble deposition, nag los nag tshwm sim, lub sij hawm no cov xim zaj duab xis tsim.
4. Electroosmosis: nyob rau hauv qhov kev txiav txim ntawm ib qho hluav taws xob teb, cov khoom theem tsis txav, tab sis cov kua theem txav tshwm sim.Electroosmosis ua rau cov dej cov ntsiab lus hauv cov xim zaj duab xis maj mam tawm mus rau sab nraud ntawm zaj duab xis, thiab thaum kawg tsim cov xim pleev xim nrog cov ntsiab lus dej tsis tshua muaj zog thiab ua haujlwm siab, uas tsis tuaj yeem dhau los ntawm tam sim no.
5. Liab hlau oxide epoxy electrophoretic xim, piv txwv li: cov xim electrophoretic yog hloov kho epoxy resin, butanol thiab ethanol amine, talcum hmoov, liab hlau oxide khoom muaj pes tsawg leeg, electrophoresis xim sib tov nrog dej distilled, nyob rau hauv cov nyhuv ntawm dc teb, uas yog sib cais. mus rau qhov zoo them cationic thiab anionic, tsis zoo them thiab ib tug series ntawm complex colloidal chemistry, lub cev chemistry electrochemical txheej txheem.
Cov txheej txheem electrophoretic thiab kev txawj ntse
1. Electrophoretic txheej ntawm cov hlau dav dav, nws cov txheej txheem yog: pre-tu → on-line → degreasing → ntxuav → xeb tshem tawm → ntxuav → neutralization → ntxuav → phosphating → ntxuav → passivation → electrophoretic txheej → hauv tank tu → ultra-filtration ntxuav → ziab → offline.
2. Lub substrate thiab pretreatment ntawm txheej txheej muaj kev cuam tshuam zoo rau cov yeeb yaj kiab electrophoretic.Castings feem ntau siv sandblasting los yog tua blasting rau xeb tshem tawm, nrog paj rwb xov los tshem tawm cov plua plav ntab saum npoo ntawm lub workpiece, nrog 80 # ~ 120 # xuab zeb daim ntawv kom tshem tawm cov seem hlau txhaj tshuaj thiab lwm yam sundries rau saum npoo.Qhov saum npoo ntawm cov hlau yog kho nrog cov roj tshem tawm thiab xeb tshem tawm.Thaum cov kev xav tau saum npoo siab dhau lawm, phosphating thiab passivation nto kho tuaj yeem ua tiav.Ferrous hlau workpiece yuav tsum yog phosphating ua ntej anodic electrophoresis, txwv tsis pub corrosion kuj ntawm cov xim zaj duab xis yog tsis zoo.Phosphating kev kho mob, feem ntau xaiv zinc ntsev phosphating zaj duab xis, thickness ntawm txog 1 ~ 2μm, yuav tsum tau nplua thiab uniform crystallization ntawm phosphating zaj duab xis.
3. Nyob rau hauv lub filtration system, dav siv lub lim, lim rau mesh hnab qauv, aperture ntawm 25 ~ 75μm.Cov xim electrophoretic yog lim los ntawm lub twj tso kua mis ntsug mus rau lub lim.Xav txog cov xwm txheej xws li lub sijhawm hloov thiab cov yeeb yaj kiab zoo, lub hnab lim nrog aperture 50μm yog qhov zoo tshaj plaws.Nws tuaj yeem tsis tsuas yog ua tau raws li qhov yuav tsum tau ua ntawm cov yeeb yaj kiab zoo, tab sis kuj tseem tuaj yeem daws qhov teeb meem ntawm lub hnab lim.
4. Lub voj voog kom muaj nuj nqis ntawm cov txheej txheem electrophoretic ncaj qha cuam tshuam rau kev ruaj ntseg ntawm cov kua da dej thiab qhov zoo ntawm cov xim pleev xim.Nrog kev nce ntawm kev ncig, nag lossis daus thiab npuas hauv lub tank txo.Txawm li cas los xij, kev laus ntawm lub tank yog nrawm dua, kev siv lub zog nce ntxiv, thiab kev ruaj ntseg ntawm lub tank ua phem dua.Nws yog qhov zoo tshaj plaws los tswj cov xov tooj ntawm cov kua tank 6 ~ 8 zaug / h, tsis yog tsuas yog ua kom cov xim zoo nkauj, tab sis kuj los xyuas kom ruaj khov ua haujlwm ntawm cov kua tank.
5.Nrog lub sijhawm ntev ntawm kev tsim khoom, qhov impedance ntawm anode diaphragm yuav nce, thiab qhov ua haujlwm tau zoo yuav txo qis.Yog li ntawd, raws li qhov poob ntawm qhov hluav taws xob hauv kev tsim khoom, kev ua haujlwm ntawm lub zog hluav taws xob yuav tsum tau maj mam nce ntxiv kom them rov qab qhov hluav taws xob poob ntawm anode diaphragm.
6.Ultrafiltration system tswj cov concentration ntawm impurity ions coj mus rau hauv lub workpiece los xyuas kom meej lub txheej zoo.Hauv kev ua haujlwm ntawm cov kab ke no, kev saib xyuas yuav tsum tau them rau kev ua haujlwm tas mus li ntawm lub kaw lus tom qab kev ua haujlwm, kev ua haujlwm tsis tu ncua yog nruj me ntsis txwv tsis pub kom ziab ntawm ultrafiltration membrane.Cov tawv nqaij qhuav thiab cov xim ua raws li ultrafiltration membrane thiab tsis tuaj yeem ntxuav kom huv si, uas yuav cuam tshuam rau permeability thiab kev pab cuam lub neej ntawm ultrafiltration membrane.Tus nqi effluent ntawm ultrafiltration membrane txo nrog lub sij hawm khiav, thiab nws yuav tsum tau ntxuav ib zaug rau 30 mus rau 40 hnub thiaj li yuav xyuas kom meej cov ultrafiltration dej yuav tsum tau rau leaching thiab ntxuav.
7. Txoj kev electrophoretic txheej yog tsim rau ntau cov kab ntau lawm.Lub voj voog hloov ntawm lub tank electrophoresis yuav tsum tsawg dua 3 lub hlis.Noj cov kab hluav taws xob electrophoresis nrog cov khoom tsim tawm txhua xyoo ntawm 300,000 steel rings ua piv txwv, nws yog ib qho tseem ceeb heev rau kev tswj xyuas cov kua tank.Ntau yam tsis tu ncua ntawm cov kua tank yog kuaj tsis tu ncua, thiab cov kua tank tau hloov kho thiab hloov raws li qhov ntsuas tau.Feem ntau, qhov tsis sib xws ntawm cov kua tank yog ntsuas ntawm qhov zaus hauv qab no: PH tus nqi, cov ntsiab lus ntawm cov khoom siv thiab cov khoom siv ntawm cov tshuaj electrophoresis, ultrafiltration thiab ultrafiltration ntxuav kua, cathode (anode) kua, circulating ntxuav kua thiab deionized tu tshuaj ib hnub ib zaug;Lub ntsej muag puag piv, cov ntsiab lus organic hnyav, kuaj lub tank me me ob zaug hauv ib lub lis piam.
8. Qhov zoo ntawm cov xim pleev xim rau kev tswj cov yeeb yaj kiab, yuav tsum tau tshawb xyuas qhov sib xws thiab tuab ntawm zaj duab xis, qhov zoo li yuav tsum tsis txhob muaj pinhole, ntws, txiv kab ntxwv tev, wrinkles thiab lwm yam tshwm sim, tsis tu ncua xyuas cov adhesion ntawm zaj duab xis, corrosion resistance thiab lwm yam ntawm lub cev. tshuaj ntsuas ntsuas.Kev tshuaj xyuas lub voj voog raws li cov chaw tsim khoom cov qauv tshuaj ntsuam xyuas, feem ntau txhua qhov yuav tsum tau sim.
Kev siv cov txheej txheem electrophoretic thiab cov xim dej ua rau pom kev vam meej hauv kev lag luam txheej.
Electrophoretic txheej siv ceev, tshuab thiab automation tuaj yeem ua tiav, kev ua haujlwm tsis tu ncua, txo kev siv zog, cov xim pleev xim tsis zoo, muaj zog adhesion, rau cov txheej txheem txheej txheej tsis yooj yim rau coated los yog coated tsis zoo, xws li cov saum toj no hais tav, welds thiab lwm qhov chaw tuaj yeem tau txais txawm, du xim zaj duab xis.Xim siv tus nqi txog li 90% -95%, vim electrophoretic xim yog water ua ib qho hnyav, tsis-flammable, tsis muaj tshuaj lom, yooj yim rau kev khiav lag luam thiab lwm yam zoo.Electrophoretic ziab xim zaj duab xis, nrog zoo adhesion, nws cov xeb kuj, corrosion kuj, huab cua tsis kam thiab lwm yam khoom zoo dua li cov xim zoo nkauj thiab cov qauv siv dav siv.
Siv rau txhua yam ntawm workpiece painting, lwm yam qauv yuav customized.
Cov khoom lag luam ntsig txog
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Txau hom pretreatment ntau lawm kab
Txheej pretreatment muaj xws li degreasing (degreasing), xeb tshem tawm, phosphating peb qhov chaw.Phosphating yog lub hauv paus txuas, degreasing thiab xeb tshem tawm yog cov txheej txheem kev npaj ua ntej phosphating, yog li hauv kev xyaum ntau lawm, peb yuav tsum tsis tsuas yog siv phosphating ua haujlwm, tab sis kuj pib los ntawm cov kev xav tau ntawm phosphating zoo, ua haujlwm zoo ntxiv rau. roj thiab xeb tshem tawm, tshwj xeeb tshaj yog them nyiaj rau kev sib nrig sib cuam tshuam ntawm lawv....
