Aluminium pas nrig taub qab vuam tshuab muaj npe nrov rau lawv lub peev xwm los tsim cov welds muaj zog thiab txhim khu kev qha. Txawm li cas los xij, ib qho teeb meem uas tuaj yeem cuam tshuam qhov zoo ntawm cov welds no yog yellowing ntawm vuam qhov chaw. Qhov yellowing, feem ntau tshwm sim los ntawm oxidation, tuaj yeem cuam tshuam qhov kev ncaj ncees ntawm cov welds. Hauv tsab xov xwm no, peb yuav tshawb nrhiav txoj hauv kev los daws thiab tiv thaiv yellowing ntawm vuam qhov chaw nyob rau hauv aluminium pas nrig taub qab vuam tshuab.
1. Kev npaj khoom zoo
Tiv thaiv kom yellowing pib nrog kev npaj cov khoom kom raug. Xyuas kom meej tias cov txhuas rods yuav tsum tau welded yog huv si thiab tsis muaj cov kab mob xws li av, roj, los yog oxidation. Ua tib zoo ntxuav cov pas nrig qhov chaw siv txoj kev tu kom tsim nyog, xws li txhuam hniav lossis tshuaj ntxuav, kom tshem tawm cov impurities uas tuaj yeem ua rau cov xim tsis zoo.
2. Tswj huab cua
Ib txoj hauv kev zoo los tiv thaiv yellowing thaum lub sij hawm vuam yog tsim kom muaj kev tswj xyuas qhov chaw nyob ib ncig ntawm qhov chaw vuam. Qhov no tuaj yeem ua tiav los ntawm kev siv cov pa roj inert, xws li argon, los tiv thaiv qhov chaw vuam los ntawm atmospheric oxygen. Inert gas shielding tiv thaiv oxidation thiab pab tswj lub ntuj xim ntawm txhuas.
3. Preheating
Preheating aluminium rods ua ntej welding kuj tuaj yeem pab txo cov yellowing. Los ntawm maj mam nce qhov kub ntawm cov pas nrig, preheating minimizes ceev ceev expansion thiab contraction uas yuav ua rau oxidation nto. Nws txhawb nqa cov txheej txheem welding smoother, txo qhov muaj peev xwm ntawm yellowing.
4. Cov Txheej Txheem Vuam Zoo
Cov txheej txheem vuam, suav nrog tam sim no, siab, thiab lub sijhawm vuam, ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv yellowing. Siv qhov tsis raug rau qhov tshwj xeeb aluminium rods raug welded ua kom muaj kev faib hluav taws xob zoo thiab txo qhov kev pheej hmoo ntawm oxidation. Nrog rau cov chaw tsim khoom cov lus pom zoo rau qhov tsim nyog welding tsis.
5. Kev ntxuav thiab kho tom qab vuam
Tom qab vuam, nws yog ib qho tseem ceeb uas yuav tsum tau ntxuav thiab kho qhov chaw vuam tam sim ntawd. Tshem tawm cov kua dej uas muaj nyob hauv lossis cov khoom paug tawm los ntawm kev siv txoj kev tu kom zoo. Tom qab ntawd, xav txog kev siv cov kev kho mob tom qab vuam, xws li cov tshuaj txhuam hniav tshwj xeeb lossis cov txheej tiv thaiv, txhawm rau tiv thaiv oxidation thiab yellowing ntxiv.
6. Kev tiv thaiv
Siv cov kev tiv thaiv los tiv thaiv qhov chaw vuam los ntawm huab cua puag thaum lub sij hawm vuam txheej txheem. Qhov no tuaj yeem suav nrog kev siv cov ntaub thaiv welding los yog cov ntaub thaiv npog los tsim ib qho kev thaiv uas txo cov pa oxygen. Khaws thaj chaw vuam tsis pub dhau los ntawm cov ntawv sau kuj tuaj yeem pab tswj qhov chaw vuam ruaj khov.
7. Kev tu ncua sij hawm
Tsis tu ncua tshuaj xyuas thiab tswj lub tshuab vuam, nrog rau cov electrodes thiab vuam taub hau Cheebtsam. Kev hnav lossis kev puas tsuaj rau cov khoom no tuaj yeem ua rau cov vuam tsis sib xws thiab muaj zog oxidation. Kev daws cov teeb meem tam sim no tuaj yeem pab tiv thaiv yellowing.
Nyob rau hauv xaus, hais thiab tiv thaiv yellowing ntawm vuam qhov chaw nyob rau hauv txhuas pas nrig taub qab vuam tshuab yuav tsum muaj ib tug ua ke ntawm cov khoom tsim nyog npaj, tswj tej huab cua, preheating, thiab ua raws li qhov zoo tshaj plaws welding tsis. Tsis tas li ntawd, kev tu thiab kho tom qab vuam, nrog rau kev tiv thaiv kev tiv thaiv thiab kev saib xyuas niaj hnub, yog cov kauj ruam tseem ceeb los tswj kev ncaj ncees thiab zoo li welds. Los ntawm kev ua raws li cov kev coj ua no, koj tuaj yeem ua kom ntseeg tau tias koj qhov kev ua haujlwm aluminium pob tw vuam ua haujlwm tsim cov welds zoo nrog cov xim tsis zoo.
Post lub sij hawm: Sep-07-2023
