Vim li cas thiaj muaj cov txheej txheem kho ua ntej rau kev ua electrophoretic?

Vim li cas thiaj muaj cov txheej txheem kho ua ntej rau kev ua electrophoretic?

Electrophoretic txheej, zoo li lwm cov txheej txheem txheej, yuav tsum tau kho qhov chaw ntawm cov txheej txheej ua ntej txheej. Kev kho saum npoo yog ib txoj haujlwm tseem ceeb uas yuav tsum tau ua ua ntej txheej txheej. Cov txheej txheem txheej txheem sib txawv, cov khoom siv, thiab cov txheej txheem saum npoo yuav tsum tau siv cov txheej txheem thiab cov txheej txheem sib txawv. Tsis tsuas yog ua cov txheej txheem kev kho deg sib txawv thiab qhov ua tau zoo cuam tshuam rau cov txheej txheem zoo, tab sis cov nqi kho mob saum npoo kuj muaj qhov cuam tshuam loj. Yog li ntawd, thaum tsim tshuab, peb yuav tsum xaiv cov hom phiaj, ua tau zoo, thiab tus nqi qis cov txheej txheem thiab cov txheej txheem kom ntau li ntau tau raws li cov txheej txheem txheej, cov khoom siv, thiab lub xeev ntawm cov coated.

Vim li cas thiaj muaj cov txheej txheem kho ua ntej rau kev ua electrophoretic?

Nyob rau hauv cov txheej txheem ua ntej ntawm kev kho electrophoretic, muaj cov txheej txheem xws li kev tshem tawm roj, tshem tawm xeb, phosphating, thiab kev kho qhov chaw uas muaj kev sib koom ua ke. Nws tuaj yeem hais tias kev kho mob ua ntej yog qhov tseem ceeb hauv cov txheej txheem electrophoretic, vim nws cuam tshuam rau kev ruaj ntseg ntawm cov xim electrophoretic thiab qhov zoo ntawm cov txheej txheej ntawm lub workpiece tom qab electrophoresis.

Electrophoretic processing siv phosphating kev kho mob raws li kev kho ua ntej rau txheej kom tau txais kev ua haujlwm ntev thiab corrosion tsis kam ntawm electrophoretic workpiece coatings. phosphating kev kho mob (tseem hu ua phosphate chemical treatment) yog ib qho txheej txheem uas siv cov kev sib cais (sib npaug) cov tshuaj tiv thaiv ntawm phosphoric acid rau precipitate insoluble phosphate hlau ntsev (phosphating zaj duab xis) nyob rau saum npoo ntawm ntxuav (degreased) hlau substrates. Lub luag haujlwm ntawm phosphating zaj duab xis yog txhawm rau txhim kho qhov adhesion thiab corrosion kuj ntawm txheej zaj duab xis (electrophoretic txheej zaj duab xis) thov rau nws.

Hais txog adhesion, vim micro dissolution ntawm phosphate zaj duab xis muaju rau hauv cov hlau nto, qhov adhesion ntawm cov muaju yog qhov zoo. Tsis tas li ntawd, vim muaj ntau qhov tsis sib xws ntawm cov muaju, qhov chaw saum npoo yog nce, uas txhim kho cov adhesion ntawm txheej zaj duab xis. Tom qab ntawd, raws li qhov adhesion ntawm txheej zaj duab xis nce, nws tiv thaiv kev cuam tshuam ntawm cov khoom corrosive thiab txhim kho nws cov corrosion kuj (tshwj xeeb tshaj yog tiv thaiv corrosion expansion nyob rau hauv cov zaj duab xis txheej).

Cov txheej yuav npuas thiab xeb hauv lub sijhawm luv luv yam tsis muaj phosphating kev kho mob. Cov dej thiab huab cua dhau los ntawm txheej txheej zaj duab xis ncav cuag qhov chaw ntawm lub workpiece, tsim cov xeb liab thiab bulging cov txheej txheej zaj duab xis. Cov dej thiab huab cua dhau los ntawm txheej txheej zaj duab xis ncav cuag lub galvanized steel phaj, ua dawb xeb thiab reacting nrog cov txheej zaj duab xis los ua hlau xab npum. Nws lub ntim nce ntau zaus, yog li ntau zog bulging lub txheej zaj duab xis. Phosphating zaj duab xis yog ib zaj duab xis insoluble tsim ntawm hlau nto los ntawm cov tshuaj tiv thaiv. Vim nws zoo adhesion (lub cev) thiab tshuaj stability, nws yog siv raws li ib tug ruaj substrate rau anti xeb coatings.

Txhawm rau kom tau txais cov phosphating zaj duab xis zoo thiab ruaj khov, ua kom nws cov adhesion thiab corrosion kuj, kev kho ua ntej yog qhov tseem ceeb, thiab kev nkag siab zoo ntawm cov tshuaj tiv thaiv txheej txheem thiab cov ntsiab lus ntawm phosphating kev kho mob kuj tseem tsim nyog.