28.3. Dab tsi yog cov ua rau muaj kev tsis xws luag?

Thaum lub sij hawm vuam txheej txheem, lub vuam pas nrig thiab cov phaj steel tsim ib qho nyiaj ntawm cov nplais, thiab cov nplais no tsis tuaj yeem tshem tawm, ua rau qee qhov seem ntawm Weld Seam. Qhov seem ntawm daim slag hauv weld kawg kawg ua rau lub slag incusion tsis zoo hauv vuam vuam. Lub Subag Inlusion Discurction kuj tseem yog ib qho ntawm cov khoom tsis xws nyob hauv cov txheej txheem vuam. Muaj ntau cov qauv ntawm cov txheej txheem rau cov txheej txheem slag, uas piav qhia txog qhov ua rau muaj kev sib txawv ntawm cov kev sib txawv. Thaum lub sij hawm vuam txheej txheem, vim kev siv cov alkaline vuam pas, oxides yog yooj yim tsim nyob rau hauv cov kev mob kub ntau, tshwj xeeb yog nyob rau hauv cov vuam tam sim no. Cov oxides hauv vuam rod sai sai nrog cov neeg siv cov hlau loj, thiab ua cov hlau txiav caj dab, nws yooj yim ua cov txheej txheem slag inclusion thaum lub sij hawm txias.