Weld chaw tawg tuaj yeem yog qhov teeb meem nyuaj uas tau ntsib thaum lub sijhawm ua haujlwm ntawm cov txiv ntoo qhov chaw vuam tshuab. Qhov kev ncaj ncees ntawm qhov sib koom ua ke yog cuam tshuam thaum weld me ntsis tsis tuaj yeem tiv taus cov khoom siv los yog kev ntxhov siab ib puag ncig. Hauv tsab xov xwm no, peb yuav tshawb txog cov laj thawj uas ua rau cov pob txha tawg thiab nthuav tawm cov kev daws teeb meem zoo los daws qhov teeb meem no.
- Lub hauv paus ua rau Weld Spot Fracture:
- Insufficient Weld Penetration: Kev siv hluav taws xob tsis txaus lossis tsis txaus siab thaum vuam tuaj yeem ua rau tsis tiav fusion, uas ua rau cov vuam tsis muaj zog tuaj yeem ua rau tawg.
- Material Incompatibility: Cov ntaub ntawv tsis sib haum nrog sib txawv thermal expansion coefficients tuaj yeem ua rau muaj kev ntxhov siab thiab txhawb kev tawg ntawm qhov sib txuas.
- Electrode Contamination: Cov electrodes tsis huv tuaj yeem ua kom pom cov impurities rau hauv lub pas dej ua ke, ua rau cov khoom sib koom ua ke tsis muaj zog thiab ua rau ua tsis tiav ntxov.
- Weld Spot Size thiab Shape: Qhov chaw vuam tsis zoo, xws li qhov dav dav lossis cov duab tsis zoo, tuaj yeem ua rau muaj kev ntxhov siab ntau ntxiv thiab txhawb kev pib tawg.
- Txhim kho Vuam Parameters: Optimizing welding tsis yog qhov tseem ceeb los daws qhov vuam qhov tawg. Ua kom vuam tam sim no, electrode siab, thiab lub sijhawm vuam tuaj yeem txhim kho qhov kev nkag mus thiab fusion, ua rau muaj zog vuam me ntsis.
- Kev xaiv cov khoom siv: Xaiv cov khoom sib xws nrog cov khoom siv zoo sib xws thiab cov thermal expansion coefficient tuaj yeem txo cov kev ntxhov siab thiab txhim kho kev sib koom tes sib koom ua ke.
- Electrode Maintenance and Cleaning: Kev tu thiab tu cov electrodes tsis tu ncua yog qhov tseem ceeb los tiv thaiv kev sib kis thaum vuam. Kev saib xyuas electrode kom zoo ua kom muaj qhov zoo sib xws thiab ua tau zoo ntawm qhov chaw vuam.
- Weld Spot Design and Inspection: Tsim kom zoo ntawm cov chaw vuam, nrog rau qhov loj thiab cov duab, tuaj yeem pab faib kev ntxhov siab ntau dua thiab txo qhov kev pheej hmoo ntawm pob txha. Tsis tas li ntawd, kev tshuaj xyuas tsis tu ncua thiab kev kuaj tsis raug puas tuaj yeem kuaj pom qhov tsis xws luag thaum ntxov, tso cai rau kev kho raws sijhawm.
- Annealing thiab Post-Weld Treatment: Siv cov kev kho mob los yog kev kho tom qab vuam tuaj yeem pab txo cov kev ntxhov siab nyob hauv qhov sib koom ua ke, txhim kho nws cov ductility thiab tiv thaiv kom tawg.
Kev tiv thaiv kev sib tsoo ntawm qhov chaw vuam hauv cov txiv ntoo qhov chaw vuam tshuab yuav tsum muaj kev qhia dav dav uas suav nrog kev ua kom zoo dua cov vuam tsis zoo, xaiv cov khoom siv sib xws, tswj cov electrodes, thiab siv cov kev tswj xyuas zoo. Los ntawm kev hais txog lub hauv paus ua rau weld chaw tawg, cov tuam txhab tsim khoom tuaj yeem ua kom cov khoom muaj zog thiab txhim khu kev qha weld pob qij txha, pab txhawb rau tag nrho cov kev ua tau zoo thiab kev nyab xeeb ntawm welded Cheebtsam hauv ntau yam lag luam.
Post lub sij hawm: Aug-07-2023
