Electroplating yog ib qho txheej txheem siv los tiv thaiv corrosion

Electroplating yog ib qho txheej txheem siv los tiv thaiv corrosion

Cov khoom siv yog cov khoom tsim nyog tsim nyog los xyuas kom meej cov khoom lag luam ib txwm muaj. Siv zog los txhim kho lub peev xwm los tiv thaiv corrosion ntawm cov cuab yeej, ua kom ntev lub neej ua haujlwm ntawm cov khoom siv, thiab txo cov nqi tsim khoom ntawm cov tuam txhab tau dhau los ua qhov teeb meem tseem ceeb uas cuam tshuam nrog cov khoom lag luam niaj hnub no. Electroplating technology yog cov cuab yeej siv los tiv thaiv corrosion.

Cov cuab yeej siv electrolysis los tso cov hlau coatings nrog zoo adhesion ntawm cov khoom siv tshuab, tab sis nrog cov khoom sib txawv thiab cov khoom siv substrate. Electroplated coatings yog ntau yam zoo li kub-dip txheej thiab feem ntau nyias nyias, xws li ntawm ob peb micrometers mus rau kaum micrometers. Los ntawm electroplating, kho kom zoo nkauj tiv thaiv thiab ntau yam kev ua haujlwm saum npoo txheej tuaj yeem tau txais ntawm cov khoom siv kho tshuab, thiab cov khoom ua haujlwm nrog kev hnav thiab kev ua haujlwm tsis raug kuj tuaj yeem kho.

Electroplating nyob rau hauv kev tiv thaiv corrosion, Changzhou Electroplating Factory tsuas yog muaj chrome plating, zinc plating, thiab npib tsib xee plating. Lub passivation ntawm galvanized txheej yog ib qho active teb. Nyob rau hauv lub xyoo caum dhau los, tsis tshua muaj chromium los yog chromium dawb xim passivation, dub passivation, tub rog ntsuab passivation, thiab muaj zog passivation (composite passivation khaubncaws sab nraud povtseg uas muaj silicone resin los yog lwm yam resins) tau qhia, uas yuav zoo heev txhim kho corrosion kuj ntawm galvanized coatings nyob rau hauv marine. huab cua, industrial cua, industrial dej, thiab dej dej ib puag ncig.

Dab tsi yog qhov cuam tshuam rau qhov ntom thiab qhov loj ntawm cov kab nrib pleb hauv chrome plating nrog xoob pores?

Tom qab plating nyuaj chromium ntawm workpieces nyob rau hauv ntau industries, kev kho mob anodic (rov qab etching) yog nqa tawm kom nthuav txheej txheej tawg thiab ua rau ntau qhov me me, uas yog hu ua plating xoob qhov chromium. Nws lub hom phiaj yog khaws cov roj lubricating ntawm qhov chaw txhawb nqa, txo kev sib txhuam coefficient, txhim kho hnav tsis kam, thiab ua kom ntev kev pab cuam lub neej. Nyob rau hauv cov txheej txheem sib txawv, cov txheej txheem chromium plating tuaj yeem tsim nrog cov ntsiab lus zoo li lub ntsej muag lossis zawj zoo li qhov pores. Dab tsi yog yam uas cuam tshuam rau qhov ntom thiab qhov loj ntawm cov kab nrib pleb hauv qhov xoob chromium txheej soj ntsuam los ntawm Changzhou nyuaj chromium plating hnub no?

Qhov ntom ntawm cov kab nrib pleb hauv cov txheej ntxeem tau chromium nyob ntawm qhov kev sib tsoo thawj zaug ntawm cov tawv chromium txheej. Yog li ntawd, cov txheej txheem chrome plating muaj qhov cuam tshuam tseem ceeb ntawm qhov xoob chrome plating thiab yuav tsum tau tswj nruj me ntsis. Raws li qhov piv ntawm CrO3 rau SO42- nce nyob rau hauv cov electrolyte, lub mesh ntom ntawm chromium plating txheej txo, tab sis qhov dav thiab qhov tob ntawm lub mesh nce. Thaum qhov sib piv tseem tsis tau hloov pauv, nce qhov concentration ntawm CrO3 kuj txo qhov ntom ntawm cov kab nrib pleb thiab ua rau qhov dav thiab qhov tob ntawm cov mesh. Tsis tas li ntawd, qhov kub ntawm cov tshuaj plating muaj qhov cuam tshuam loj rau cov txheej txheem. Raws li qhov kub thiab txias, lub mesh yuav thinner; Qhov cuam tshuam ntawm cathode tam sim no ceev yog me me.

Kev sib koom tes ntawm electroplating tej yam kev mob yog tus yuam sij rau kev tsim thiab tswj qhov loj ntawm chromium txheej cheeb tsam ntawm xoob pores. Cov xwm txheej rau kev tsim cov ntsiab lus zoo li tus thiab zawj zoo li lub qhov xoob chromium yog qhov yooj yim kho txawm tias cov txheej txheem plating ntawm xoob qhov chromium. Piv txwv li, qhov kub thiab qhov sib piv ntawm sulfate ions hauv cov tshuaj plating yog ob yam tseem ceeb hauv qhov xoob chromium plating, yog li kev sib koom tes yog tsim nyog.

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