Tom qab kev kho mob ntawm electroplated passivation rau hluav taws xob cua sov raj

Tom qab kev kho mob ntawm electroplated passivation rau hluav taws xob cua sov raj

Cov pa roj carbon activated sib txawv feem ntau muaj peev xwm adsorption sib txawv rau cov khoom sib txawv. Qhov kev sim qhia tau hais tias N-hom granular activated carbon muaj qhov zoo adsorption ntawm cov khoom decomposition ntawm coumarin, thaum hmoov activated carbon muaj cov nyhuv adsorption tsis zoo, tab sis tom kawg muaj qhov zoo dua adsorption ntawm cov khoom decomposition ntawm 1, {{2 }}butanediol; Piv txwv li, E-82 leveling npib tsib xee plating brightener (pyridine derivatives) tau siv nyob rau hauv nickel plating tov rau ib lub sij hawm ntawm lub sij hawm, thiab tom qab tau kho nrog hmoov activated carbon, lub brightness ntawm txheej nce thiab brightness ntau yam expands. , qhia tias cov pa roj carbon activated no muaj qhov zoo adsorption ntawm cov khoom decomposition ntawm E-82 brightener.

Emitting lub teeb

Tsawg chromium passivation nrog tsawg acidity yuav luag tsis muaj polishing nyhuv ntawm txheej. Yog li ntawd, ua ntej passivation, polishing yuav tsum tau nqa tawm kom tsis txhob muaj qhov nce ntawm pH tus nqi ntawm cov tshuaj passivation. Qhov tseem ceeb tshaj, nws plays lub luag hauj lwm tshuaj polishing nyob rau hauv zinc plating txheej, tau ib tug zoo gloss txheej, xyuas kom meej lub adhesion thiab tsos zoo ntawm passivation zaj duab xis.

Kev kho mob tom qab passivation

(1) Ntxuav

Tom qab passivation, nws yuav tsum tau ua tib zoo ntxuav, txwv tsis pub, residual acid nyob rau saum npoo ntawm qhov chaw tuaj yeem yooj yim ua rau cov zaj duab xis passivation poob. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo ntxuav nrog ob peb txheej dej, thiab thaum kawg ntxuav nrog dej ntws.

(2) Qhuav (aging)

Qhov kub kom qhuav yuav tsum tsis pub tshaj 65 ° C txhawm rau txhim kho hardness thiab adhesion ntawm passivation zaj duab xis. Txwv tsis pub, cov zaj duab xis passivation yuav plam dej ntau dhau, tig liab lossis daj, thiab cov yeeb yaj kiab tuaj yeem ua rau detachment, tawg, thiab corrosion kuj yuav txo. Qhov kub kom qhuav yuav tsum yog qhov sib xws.

www.superbheater.com