28.4. Dab tsi yog cov kev daws teeb meem rau cov incusions tsis xws luag?

Txhawm rau txhim kho cov vuam zoo ntawm cov qauv hlau kauv steel thiab muaj txiaj ntsig daws qhov tsis zoo ntawm kev tawg, nws yog qhov tsim nyog kom tau kov cov zawj qhov loj me. Qhov zawj qhov tsua yuav tsum tau txiav txim siab raws li cov kev paub dhau los kom muaj kev cuam tshuam zoo ntawm kev ua kom pom kev zoo. Tsis tas li ntawd, nws yog ib qho tseem ceeb kom kho lub vuam tam sim no thiab tswj lub vuam ceev, kom muaj covyees rhuab kom tsis txhob muaj oxides fehle vim yog qhov ua kom dhau los yog overheating. Kaw Zoo heev vuam swb kuj tseem ua rau swb rau kev sib cais ua, yog li kom raws sij hawm ntxuav vuam slag yog qhov tseem ceeb thaum muaj vuam ua haujlwm. Qhov zoo tshaj plaws ntawm kev vuam hluav taws xob nws tus kheej heev cuam tshuam rau slag inclusion qhov tsis xws luag. Yog tias muaj ib lub vuam vuam hluav taws xob hauv eccentric tsis ncaj ncees ntawm cov khoom siv vuam, nws yuav ua rau muaj ntau ntau ntawm kev sib cais ntawm sluag. Yog li ntawd, thaum lub sij hawm xaiv vuam rods, nws yog ib qho tseem ceeb kom xaiv cov uas yog cov cores tsis txaus ntseeg, uas yuav pab tau zoo rau kev zam kev tsis pom kev.