Welds yog ib feem tseem ceeb ntawm cov txheej txheem tsim khoom, muab lub zog thiab ruaj khov rau ntau yam qauv. Txawm li cas los xij, tom qab ua tiav cov txheej txheem vuam, cov lus nug tseem ceeb tshwm sim: welds puas yuav tsum tau ntxuav?
Kev ntxuav welds yog qhov tseem ceeb rau kev ua kom muaj kev ncaj ncees. Thaum lub sij hawm vuam txheej txheem, impurities xws li slag, nplai thiab oxides tuaj yeem tsim nyob rau saum npoo. Cov impurities no tuaj yeem cuam tshuam qhov zoo ntawm cov vuam, ua rau txo lub zog thiab tsis ua haujlwm. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo ntxuav lub weld seam kom tshem tawm cov khoom uas tsis xav tau thiab xyuas kom muaj lub vuam zoo.
Ntxiv nrog rau cov qauv kev ncaj ncees, huv welds txhim kho kev zoo nkauj. Cov welds tsis huv yuav muaj qhov tsis zoo, tsis muaj xim lossis txawm tias tawg. Los ntawm kev ntxuav cov vuam kom huv, cov kev tsis zoo no tuaj yeem raug tshem tawm, ua rau cov khoom tiav zoo dua qhov pom. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam uas qhov kev zoo nkauj tseem ceeb, xws li tsheb thiab kev tsim kho.
Kev ntxuav welds kuj tseem txhim kho qhov vuam tsis kam tiv thaiv corrosion. Cov impurities ntawm qhov chaw weld tuaj yeem yog qhov pib rau corrosion. Los ntawm kev tshem tawm cov impurities los ntawm kev ntxuav, lub vuam yog zoo dua tiv thaiv xeb thiab lwm yam corrosion. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov qauv uas raug rau ib puag ncig hnyav xws li marine lossis industrial cheeb tsam.
Ntxuav welds txhim kho weld zoo thiab kev ua tau zoo. Thaum welding rau ntawm qhov chaw qias neeg, qhov muaj cov kab mob tuaj yeem cuam tshuam nrog kev sib xyaw thiab nkag mus ntawm qhov vuam. Los ntawm kev ua kom huv si ntawm weld seam, cov txheej txheem vuam tuaj yeem ua tau zoo dua, ua rau kev txhim kho weld kev ncaj ncees thiab kev ua haujlwm tag nrho.
Ntxuav welds yog qhov tseem ceeb kom meej meej. Cov qauv kev ncaj ncees, kev zoo nkauj, kev tiv thaiv corrosion thiab tag nrho cov weld zoo tuaj yeem txhim kho tau zoo los ntawm kev tu. Yog li ntawd, kev tu kom huv si yuav tsum tau suav tias yog ib kauj ruam tseem ceeb hauv kev npaj cov weld kom ntseeg tau tias cov txiaj ntsig tau zoo hauv chav kawm thawj zaug thiab kev siv vuam ntev.
