Resistance spot welding yog cov txheej txheem siv dav hauv ntau qhov kev lag luam rau kev koom nrog cov ntawv hlau ua ke. Txawm li cas los xij, thaum ua hauj lwm nrog galvanized daim hlau, welders feem ntau ntsib qhov teeb meem tshwj xeeb - lub tshuab vuam feem ntau yuav lo. Hauv tsab xov xwm no, peb yuav delve rau hauv cov laj thawj tom qab qhov tshwm sim no thiab tshawb nrhiav cov kev daws teeb meem.
To taub qhov teeb meem
Kev tiv thaiv qhov chaw vuam cuam tshuam nrog kev hla hluav taws xob siab dhau los ntawm ob daim hlau, tsim kom muaj qhov chaw melting hauv zos uas fuses ua ke. Thaum vuam galvanized daim hlau, txheej txheej txheej muaj zinc, uas muaj qis melting point tshaj hlau. Cov txheej zinc no tuaj yeem yaj ua ntej cov hlau ua, ua rau cov vuam electrodes uas nyob rau hauv daim hlau.
Ua rau ntawm Sticking hauv Galvanized Phaj Vuam
- Zinc Vaporization:Thaum lub sij hawm vuam txheej txheem, qhov kub kub ua rau cov zinc txheej vaporize. Cov vapor no tuaj yeem nce thiab condense ntawm cov vuam electrodes. Yog li ntawd, cov electrodes ua coated nrog zinc, ua rau adhesion nrog lub workpiece.
- Electrode Contamination:Cov zinc txheej kuj tuaj yeem paug cov vuam electrodes, txo lawv cov conductivity thiab ua rau lawv lo rau daim hlau.
- Zinc txheej tsis sib xws:Qee zaum, cov phaj galvanized yuav muaj cov zinc txheej tsis sib xws. Qhov kev tsis sib xws no tuaj yeem ua rau muaj kev hloov pauv hauv cov txheej txheem vuam thiab ua rau muaj feem cuam tshuam.
Cov kev daws teeb meem los tiv thaiv kev nplaum
- Electrode Maintenance:Tsis tu ncua ntxuav thiab tswj cov vuam electrodes kom tiv thaiv zinc buildup. Tshwj xeeb anti-stick txheej los yog hnav khaub ncaws yog muaj los txo adhesion.
- Qhov zoo ntawm Welding Parameters:Kho cov vuam tsis sib xws, xws li tam sim no, lub sij hawm, thiab siab, kom txo tau cov cua sov input. Qhov no tuaj yeem pab tswj cov zinc vaporization thiab txo cov nplaum.
- Kev siv tooj liab Alloys:Xav txog kev siv tooj liab alloy vuam electrodes. Tooj liab muaj cov ntsiab lus melting ntau dua li zinc thiab tsis tshua muaj feem cuam tshuam rau lub workpiece.
- Kev npaj nto:Xyuas kom meej tias qhov chaw yuav tsum tau welded yog huv si thiab tsis muaj kab mob. Kev npaj saum npoo kom zoo tuaj yeem txo qhov kev pheej hmoo ntawm kev nplaum.
- Tsis txhob sib tshooj Weld:Txo qhov sib tshooj welds, raws li lawv tuaj yeem ntxiab molten zinc ntawm daim hlau, ua rau muaj feem cuam tshuam.
- Qhov cua:Siv qhov cua kom zoo kom tshem tawm cov pa zinc los ntawm qhov chaw vuam, tiv thaiv cov kab mob electrode.
Qhov teeb meem ntawm qhov chaw ua haujlwm vuam tshuab ua kom zoo thaum vuam galvanized daim hlau tuaj yeem raug ntaus nqi rau cov khoom tshwj xeeb ntawm zinc thiab cov teeb meem nws tshwm sim thaum lub vuam txheej txheem. Los ntawm kev nkag siab txog cov laj thawj thiab ua raws li cov lus pom zoo, cov welders tuaj yeem txhim kho lawv cov kev ua tau zoo thiab txo qhov tshwm sim ntawm kev nplaum, ua kom cov welds zoo hauv lawv daim ntawv thov galvanized.
Post lub sij hawm: Sep-22-2023
