Hlau Sheet Stretching Thiab Stamping; Gas Meter Box; Gas Meter Housing Stamping Parts; Stamping Tuag

Cov tsos ntawm xeb dawb sai tom qab galvanizing yog qhov tseem ceeb ntawm cov tshuaj tiv thaiv oxidation ntawm zinc txheej nyob rau hauv tej yam kev mob. Nws tsis yog xwm txheej; muaj qhov tseeb ib puag ncig thiab cov txheej txheem- cuam tshuam rau hauv qab nws.

Los ntawm ib puag ncig kev xav, av noo thiab kub yog ob qho tseem ceeb tsav tsheb. Thaum galvanized qhov chaw ua tiav thiab muab tso rau hauv ib puag ncig nrog cov av noo ntau tshaj 70%, noo noo nyob rau hauv cov huab cua yuav sai sai condense ntawm zinc txheej nto, tsim ib zaj duab xis dej. Cov yeeb yaj kiab dej no ua haujlwm zoo li cov tshuaj electrolyte, muab cov chaw yug me nyuam rau zinc oxidation cov tshuaj tiv thaiv. Zinc reacts chemically nrog dej thiab oxygen los tsim cov ntaub ntawv xoob zinc hydroxide, uas yog cov xeb dawb peb pom. Nyob rau tib lub sijhawm, qhov kub thiab txias hloov pauv ntawm qhov chaw ua haujlwm thiab chaw cia khoom, nrog rau qhov kub thiab txias hloov pauv, yuav ua rau cov hws thiab evaporation voj voog ntawm cov dej noo, ntxiv rau kev tsim cov xeb dawb. Qhov no yog ib qho kev cuam tshuam ib puag ncig uas ua rau pom cov xeb dawb sai tom qab galvanizing.

Kev saib xyuas hauv kev tswj cov txheej txheem kuj yog ib qho tseem ceeb thiab tsis tuaj yeem lees paub. Qee lub tuam txhab tsis ua qhov tsim nyog passivation kev kho mob ntawm cov khoom ua haujlwm tom qab galvanizing, tawm hauv zinc txheej saum npoo yam tsis muaj zaj duab xis tiv thaiv. Qhov kev cuam tshuam ncaj qha rau huab cua no txo ​​qis kev tiv thaiv corrosion, ua rau nws muaj kev cuam tshuam rau cov xeb dawb tsim nyob rau lub sijhawm luv luv. Tsis tas li ntawd, yog hais tias degreasing thiab xeb tshem tawm tsis tiav thaum lub sij hawm pretreatment theem ntawm galvanizing, residual impurities nyob rau hauv lub workpiece nto tuaj yeem cuam tshuam qhov uniformity ntawm zinc txheej, ua rau lub zos tsis muaj zog nyob rau hauv zinc txheej tiv thaiv thiab sai sai tsos ntawm dawb xeb. Qhov no yog cov txheej txheem tseem ceeb- theem yam uas ua rau cov tsos ntawm xeb dawb sai tom qab galvanizing.

Hais txog kev tswj hwm ib puag ncig, kev tswj hwm kub thiab av noo yog tsim nyog. Tom qab galvanizing, workpieces yuav tsum tam sim ntawd hloov mus rau ib qho chaw cia khoom nrog qhov kub thiab txias. Cov cuab yeej ntsuas kub thiab av noo yuav tsum tau muab ntsia kom ntseeg tau tias cov av noo nyob ib puag ncig yog tswj tau qis dua 60% thiab qhov kub thiab txias yog tswj nyob rau hauv qhov tsim nyog ntawm 15-25 degree. Yog hais tias tag nrho cov av noo nyob rau hauv lub rhiav yog siab dhau lawm, industrial dehumidifiers yuav siv tau los dehumidify cov txheej txheem thiab cia chaw nyob rau hauv lub sij hawm, txo cov ya raws ntawm zinc txheej ntawm qhov chaw thiab zoo tiv thaiv tej yam kev mob rau dawb xeb tsim sai tom qab galvanizing.

Cov txheej txheem optimization yog qhov tseem ceeb lav kom tsis txhob muaj xeb dawb. Cov tuam txhab lag luam yuav tsum ua raws li tag nrho - cov txheej txheem txheej txheem rau galvanizing, xyuas kom meej degreasing thiab xeb tshem tawm thaum lub sij hawm pretreatment kom tiav ib tug huv si nto tsis muaj roj, xeb, thiab oxide nplai, nteg lub hauv paus rau uniform zinc txheej adhesion. Ib txhij, tom qab galvanizing, kev kho mob passivation yuav tsum tau ua kom sai. This forms a dense passivation film on the zinc layer surface, preventing direct contact between air and moisture, significantly enhancing the zinc layer's corrosion resistance and fundamentally reducing the probability of white rust appearing shortly after galvanizing.