Kev sib piv ntawm Cov Txheej Txheem Phosphating Traditional thiab Silanization Kho Cov Txheej Txheem rau Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Electroplating

Kev sib piv ntawm Cov Txheej Txheem Phosphating Traditional thiab Silanization Kho Cov Txheej Txheem rau Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Electroplating

Tus neeg sawv cev silane coupling tau dhau los ua cov cuab yeej tshiab rau kev hloov kho hlau nto, nrog lub peev xwm zoo. Txawm li cas los xij, tseem muaj qee qhov tsis txaus ntseeg hauv cov txheej txheem no, vim tias qhov nce ntawm pH tus nqi ntawm silane hlau saum npoo kho tus neeg sawv cev yog qhov tsim nyog rau kev nce qib ntawm silane cawv condensation cov tshuaj tiv thaiv. Txawm li cas los xij, qhov nce ntawm tus nqi pH ua rau flocculation thiab tsis ua haujlwm ntawm tus neeg saib xyuas kev kho mob, uas txwv tsis pub siv cov ntawv loj hauv kev lag luam. Txog rau qhov kawg no, ua ke nrog txoj kev electrodeposition, pH tus nqi ntawm cov tshuaj hauv zos ntawm cov electrode nto nce ntxiv tom qab siv lub peev xwm cathodic rau cov hlau nto, kom nws tsis cuam tshuam rau kev ruaj ntseg ntawm cov tshuaj ntau. Qhov no tso cai rau cov organic silane ua raws li cov hlau nto, uas ua rau cov txheej txheem tuab, zoo ib yam, thiab ntom silane zaj duab xis txheej, uas txhim kho kev tiv thaiv kev ua haujlwm ntawm txheej. Tsis tas li ntawd, kev tswj hwm kev npaj ntawm silane zaj duab xis tuaj yeem ua tiav los ntawm kev tswj hwm cov txheej txheem electrochemical ntawm cov txheej txheem tso tawm los kawm txog kev cuam tshuam ntawm silane zaj duab xis qauv thiab corrosion kuj.

4, Kev sib piv ntawm cov txheej txheem phosphating cov txheej txheem thiab cov txheej txheem kho silane

Phosphating kev kho mob yog txheej txheem ib txwm siv dav hauv kev kho ua ntej ntawm cov hlau txheej. Nws yog ib qho txheej txheem uas phosphate reacts nrog cov hlau substrate los tsim cov tshuaj phosphate hloov dua siab tshiab rau ntawm nws qhov chaw. Qhov no phosphate hloov dua siab tshiab zaj duab xis yog hu ua phosphating zaj duab xis. Lub hom phiaj tseem ceeb ntawm phosphating yog los muab kev tiv thaiv luv luv ntawm cov txheej txheem rau lub hauv paus hlau thiab rau qee qhov tiv thaiv corrosion ntawm cov hlau substrate.

txheej txheem thev naus laus zis:

Degreasing → kub ntxuav → dej txias → ntxuav kua qaub → ntxuav dej txias → neutralization → dej ntxuav → deg kho → phosphating → dej ntxuav → neutralization kub ntxuav → cua ziab