Electrophoretic txheej yog txheej txheej niaj hnub raws li cov txheej txheem electrochemical. Nws ua tiav cov txiaj ntsig zoo thiab tsis sib xws thiab kev tiv thaiv kev ua tau zoo los ntawm kev coj mus rau kev tsiv teb tsaws ntawm cov khoom siv hluav taws xob sib cais hauv dej mus rau qhov chaw ua haujlwm nyob rau hauv kev cuam tshuam ntawm cov hluav taws xob ncaj qha tam sim no, yog li tso ib zaj duab xis. Txij li thaum nws pib, cov cuab yeej no tau siv dav thiab ua tiav hauv ntau qhov kev lag luam, suav nrog tsheb, khoom siv hauv tsev, khoom siv, thiab cov khoom siv hauv tsev, vim nws muaj zog nkag mus, ruaj khov zaj duab xis zoo, thiab muaj txiaj ntsig zoo ib puag ncig thiab kev lag luam.
Lub hauv paus ntsiab lus ntawm electrophoretic txheej yog nyob rau hauv kev siv hluav taws xob teb los tsav lub zog ntawm colloidal hais. Cov xim electrophoretic muaj cov zaj duab xis- ua cov resin, pigments, additives, thiab neutralizing agents. Cov resin molecules, tom qab neutralization, nqa tus nqi thiab tuaj yeem tsim kom muaj kev ruaj khov dispersion system nyob rau hauv aqueous theem. Thaum lub workpiece yog immersed nyob rau hauv lub da dej raws li ib tug electrode thiab ib tug ncaj qha tam sim no lub hwj chim mov yog siv, cov nqi hais migrate mus rau lub opposite polarity ntawm lub workpiece nto nyob rau hauv lub zog ntawm hluav taws xob teb, maj accumulating ntawm lub interface thiab lub cev qhuav dej thiab tsom mus rau tsim ib tug nruam ntub zaj duab xis. Raws li lub sij hawm txuas ntxiv thiab qhov hluav taws xob tau khaws cia, zaj duab xis thickness nce mus txog rau thaum txheej txheem teeb tsa tus nqi. Tom qab ntawd, ci thiab curing ua rau cov resin hla mus rau hauv peb -cov qauv kev sib txuas, ua kom tau raws li qhov xav tau ntawm lub zog thiab kev tawm tsam rau kev tshaj tawm.
Cov yeeb yaj kiab no - txoj kev tsim muaj cov txheej txheem electrophoretic nrog ntau yam kev ua haujlwm. Ua ntej, nws muaj kev nkag tau zoo heev; nyob rau hauv kev cuam tshuam ntawm hluav taws xob teb, cov khoom tuaj yeem nkag mus tob rau hauv cov kab noj hniav, qhov qhov muag tsis pom, thiab qhov tsis sib xws ntawm cov duab nyuaj, ua tiav cov kev pab cuam uas tsis yooj yim rau kev ua tiav nrog cov tshuaj tsuag ib txwm, txo qis cov cheeb tsam thiab cov thickness variations. Qhov thib ob, zaj duab xis qauv yog ntom thiab muaj zog adhesion; cov yeeb yaj kiab kho yog du thiab txawm, nrog corrosion kuj, tshuaj tiv thaiv, thiab huab cua tsis kam feem ntau zoo tshaj rau cov pa coatings. Thib peb, electrophoretic txheej siv dej ua tus nqa khoom, txo qis cov organic compound emissions, ua raws li cov qauv tsim ntsuab; cov tshuaj da dej tuaj yeem rov ua dua tshiab thiab nws lub neej ncua ntev los ntawm kev pom thiab kev sib pauv ion, txo cov khoom siv raw thiab cov kua dej pov tseg, ua rau muaj txiaj ntsig zoo rau kev lag luam thiab ib puag ncig.
Nyob rau theem ua haujlwm, cov txheej txheem txheej txheej electrophoretic encompasses da dej tov npaj thiab tu, workpiece pretreatment, electrophoretic txheej daim ntawv thov, ntxuav, thiab kho. Pretreatment txheej txheem xws li degreasing thiab phosphating txhim kho substrate huv si thiab conductivity, nteg lub hauv paus rau uniform deposition. Electrophoresis tsis, xws li voltage, lub sij hawm, thiab qhov kub thiab txias, yuav tsum tau precisely raws li cov khoom system thiab workpiece yam ntxwv kom sib npaug ntawm zaj duab xis thickness thiab tsos. Kev ntxuav dej tshem tawm cov xim pleev xim thiab cov ion residues, tiv thaiv cov kab mob sib kis; Kev kho muaj qhov kub thiab txias- tswj kev ci kom txhawb nqa cov ntoo khaub lig- txuas, tsim cov yeeb yaj kiab polymer ruaj khov. Tag nrho cov txheej txheem tuaj yeem ua seamlessly integrated nrog automated ntau lawm kab, txhim kho ntau lawm lub sij hawm thiab sib xws.
Nrog kev nce qib hauv cov khoom siv thev naus laus zis, txheej txheej electrophoretic tau nthuav dav rau kev ua haujlwm siab thiab ua haujlwm ntau. Epoxy systems txhim khu kev tiv thaiv corrosion, acrylic systems txhim kho huab cua tsis kam thiab zoo nkauj, thiab polyurethane systems muab ob qho tib si saj zawg zog thiab hnav tsis kam, thaum tseem tso cai rau kev taw qhia txog kev siv hluav taws xob, tshuaj tua kab mob, thiab lwm yam khoom siv rau kev siv tshwj xeeb. Kev taw qhia txog kev saib xyuas ntse thiab kaw- kev tswj lub voj voog ua kom zoo tiag tiag - lub sijhawm ua kom zoo dua ntawm cov dej da dej thiab cov txheej txheem tsis zoo, ntxiv kev txhim kho kev ruaj ntseg thiab kev siv peev txheej.
Electrophoretic txheej, nrog nws cov hluav taws xob hluav taws xob-tsav zaj duab xis- tsim cov txheej txheem thiab ntau yam kev ua tau zoo, tau dhau los ua txoj hauv kev tseem ceeb rau kev lag luam niaj hnub kom ua tiav qib siab - zoo, qis - emission txheej. Nws tas li hloov kho cov txheej txheem thev naus laus zis thiab kev siv dav dav hauv kev cia siab yog tsav kev tsim khoom lag luam mus rau kev coj ua tau zoo dua thiab ib puag ncig tus phooj ywg.
