Thaum lub sij hawm vuam txheej txheem, vuam electrodes thiab steel daim hlau tsim ib co slag, uas tsis tuaj yeem raug tshem tawm tag nrho. Qee qhov ntawm cov slag no tseem nyob hauv qhov vuam thiab thaum kawg tsim cov slag suav nrog qhov tsis xws luag hauv vuam. Slag suav nrog kuj yog ib qho ntawm ntau qhov tsis xws luag hauv cov txheej txheem vuam. Slag suav nrog muaj ntau yam qauv kev faib tawm, thiab qhov ua rau ntawm slag suav nrog tuaj yeem piav qhia los ntawm ntau qhov kev xav. Thaum lub sij hawm vuam, kev siv cov vuam electrodes yooj yim tuaj yeem tsim oxides nyob rau hauv qhov kub thiab txias, tshwj xeeb tshaj yog thaum cuam tshuam los ntawm vuam tam sim no. Oxides nyob rau hauv lub vuam electrode thiab oxides nyob rau hauv cov hlau phaj sai sai thiab nkag mus rau hauv lub vuam sib txawv nrog cov molten weld hlau. Thaum lub sij hawm txias txheej txheem ntawm cov hlau, slag inclusion defects yog nquag tsim.
Txhawm rau txhim kho cov vuam zoo ntawm cov kav hlau kav hlau thiab ua kom muaj txiaj ntsig zoo ntawm cov slag suav nrog qhov tsis xws luag, nws yog ib qho tsim nyog yuav tsum ua kom zoo ntawm qhov zawj qhov ntev. Txiav txim siab qhov zawj qhov ntev raws li kev paub dhau los kom tsis txhob muaj qhov tshwm sim ntawm slag suav nrog qhov tsis xws luag. Tsis tas li ntawd, kev saib xyuas yuav tsum tau them nyiaj rau kev kho cov vuam tam sim no thiab tswj cov vuam ceev, uas tuaj yeem ua kom cov cua sov tsis sib xws ntawm cov phaj hlau thiab tsis txhob oxide residue thaum txias los yog cua sov. Ua tib zoo mloog yuav tsum tau them rau lub viav vias txoj hauj lwm ntawm vuam electrode kom ntseeg tau tias nws txoj kev txav mus los tsis txawv txav, yog li cuam tshuam qhov vuam zoo. Kev siv vuam slag ntau dhau tuaj yeem ua rau muaj kev suav nrog slag. Yog li ntawd, thaum lub sijhawm ua haujlwm vuam, vuam slag yuav tsum tau muab ntxuav tam sim ntawd. Qhov zoo ntawm vuam electrode nws tus kheej kuj tseem muaj feem cuam tshuam rau slag suav nrog qhov tsis xws luag. Yog tias eccentric vuam electrodes nrog kev faib tsis sib npaug ntawm cov khoom siv vuam siv, ntau cov slag suav nrog yuav raug tsim. Yog li ntawd, thaum lub sij hawm xaiv cov txheej txheem ntawm vuam electrodes, irregularly zoo li tus electrodes thiab electrodes nrog incorrectly positioned cores yuav tsum tau xaiv tawm, uas yuav zoo zam qhov tshwm sim ntawm slag inclusion defects.
