Yuav ua li cas nrog me ntsis dawb xeb ntawm cov npoo ntawm galvanized ntawv rau tsheb?

May 20, 2025 Tso lus

Q: Yuav ua li cas paub qhov txawv ntawm me ntsis dawb xeb thiab hnyav corrosion?

A: Mej-liab dawb: nws yog nyob rau hauv daim ntawv dawb hmoov los yog plaub ya ri ntawm cov txheej txheem, thiab tuaj yeem raug tshem tawm ntawm cov rau tes, thiab lub qab hau zinc txheej yog tseem ci.
Cov xeb hnyav: liab qab-xim av xeb (xeb ntawm cov txheej txheem), tev ntawm cov txheej lossis thaj chaw loj ntawm cov pob dub tshwm sim. Lub sijhawm no, lub phaj yuav tsum tau muab txhuam ncaj qha thiab tsis tuaj yeem kho.

Slight white rustSevere corrosion

 

Q: Cov txheej txheem rau kev kho tus nqi dawb dawb?

A: Kauj ruam 1: Kev tshem tawm lub cev (zam kom tsis txhob muaj dej)
Zoo Sander: 800-1000 mesh (ua los ntawm Silicon Carbide lossis Aluminium Wool yog txwv tsis pub)
Kauj ruam 2: Degreasing thiab tu (tshem tawm cov roj thiab seem tsis zoo)
Poob cov ntaub paj rwb ntshiab lossis daim txhuam cev hauv cov qauv tsim tawm (raws li cov chaw tsim khoom sib txawv kom tshem tawm cov roj av, ntiv tes thiab cov phuam qhwv taub hau.
Tam sim ntawd tshuab qhuav nrog cua qhuav huv tom qab so kom paub tseeb tias tsis muaj cov kua seem ntawm cov xeb (cov chaw seem ua rau cov xeb ntxiv).
Kauj ruam 3: Kev Kho Mob Nruab Nrab (Xaiv tau, rau kev thaj chaw alkaline)
Yog tias qhov chaw cia khoom yog alkaline (xws li sib cuag nrog cov av nkos-accet), siv {{{{}. 5%}.)
Kauj Ruam 4: Kev tiv thaiv xeb thiab ua raws sijhawm
Siv cov paalone-dawb xeb tiv thaiv (xws li cov dej ua kom muaj xeb, cov yeeb yaj kiab thickness} μm) kom ntseeg tau tias thaj chaw polishness μm) kom tiv thaiv kom tiv thaiv cov tshuaj oxidation theem nrab.
Yog tias cov txheej txheem stamping tuaj yeem pib tsis pub dhau 2 teev, cov khoom tiv thaiv xeb tuaj yeem raug rho tawm thiab cov khoom tuaj yeem ua ncaj qha khaws cia qhuav.

Normal galvanized sheet

 

Q: Peb yuav tsum mloog li cas thaum lub sijhawm ntxuav kom huv?

A: Zom hauv ib qho kev coj ua raws li cov nplej uas tsis txhob khawb ntawm cov txheej los ntawm cov duab los yog sib tsoo.
Cov kev sib tsoo yuav tsum tau tshaj li ntug ntawm thaj chaw dawb xeb los ntawm {{mm kom paub meej tias ib puag ncig zais oxide txheej raug tshem tawm kiag li.

 

 

Q: Yuav ua li cas xaiv tu tus neeg sawv cev rau Degreeing?

A: Cov dej nruab nrab ntawm cov dej (ph 6. {{{2)
Nws raug txwv siv cov kuab tshuaj ntxuav kom huv (xws li dej cawv, roj av), uas yuav ua rau kev puas tsuaj zaj duab xis ntawm zinc txheej.

 

 

Q: Dab tsi yog qhov kev ua haujlwm txwv tiag tiag thaum cuam tshuam nrog me ntsis dawb xeb ntawm galvanized los ntawm galobiles?

A: Sib tsoo nrog hlau wool lossis coarse sandpaper (<600 mesh): It will destroy the passivation film on the surface of the coating and accelerate corrosion.
Yaug nrog dej ncaj qha thiab qhuav ib txwm muaj: cov chaw muaj ocygen tuaj yeem tsim cov pa oxygen
Kho GA daim hlau (rho tawm txheej) nrog cov acid \/ alkali: nws yuav yaj cov txheej alloy alloy thiab cuam tshuam vuam thiab kev ua tau zoo vuam thiab cuam tshuam.