Thaum lub sij hawm vuam txheej txheem, tus welder tuaj yeem pom ib txheej ntawm cov ntaub npog ntab rau saum npoo ntawm lub pas dej molten, uas feem ntau hu ua vuam slag. Yuav ua li cas paub qhov txawv vuam slag thiab molten hlau nyob rau hauv hluav taws xob vuam yog ib qho tseem ceeb heev rau welders uas yog beginners nyob rau hauv hluav taws xob vuam. Kuv tus kheej xav tias yuav tsum yog li ntawd.
Ua ntej, lub vuam slag yog cov khoom ntawm melting ntawm electrode txheej thiab kub-kub metallurgical cov tshuaj tiv thaiv ntawm cov vuam. Vuam slag feem ntau yog tsim los ntawm cov hlau oxides lossis cov hlau tsis yog hlau oxides thiab lwm cov ntxhia ntsev.
Txij li thaum nws qhov ntom ntom me dua li cov kua molten hlau thaum lub sij hawm vuam, cov welders tau yooj yim soj ntsuam ib txheej ntawm cov khoom ntab saum toj ntawm lub pas dej molten thaum vuam.
Nyob rau hauv cov nqe lus ntawm cov xim, nws yog tsaus dua li cov kua molten hlau nyob rau hauv lub molten pas dej ua ke, thiab ntws nyob rau hauv lub opposite kev taw qhia mus rau lub vuam kev taw qhia thiab nyob rau ob sab ntawm lub rear, thiab txias raws li lub vuam txuas ntxiv, ua vuam slag.
Qhov thib ob, qhov vuam slag feem ntau tiv thaiv cov hlaws vuam thaum lub sij hawm vuam txheej txheem.
Lub molten slag npog cov kua hlau hauv lub pas dej molten kom cais cov kua hlau los ntawm huab cua, tiv thaiv kev cuam tshuam ntawm cov pa phem xws li oxygen, nitrogen, thiab hydrogen hauv huab cua, yog li tiv thaiv cov hlaws vuam.
Yog li ntawd, thaum lub sij hawm vuam txheej txheem, peb yuav tsum xyuam xim rau lub vuam lub kaum sab xis kom ntseeg tau tias cov vuam slag ntws mus rau sab nraub qaum thiab sab nraub qaum, thiaj li ua raws li kev tsim cov vuam, tsis txhob muaj qhov tsis xws luag xws li slag inclusion thiab pores, thiab xyuas kom cov vuam zoo.
Thib peb, raws li tus kws tshaj lij welder nyob rau ntawm qhov chaw, cov neeg uas paub qhov txawv ntawm cov hlau molten thaum lub vuam yuav pom tias cov vuam slag ntab ntawm cov kua molten hlau, zoo li cov roj txaws hauv dej, ntab rau ntawm lub pas dej molten. yooj yim txheeb xyuas.
