Kev txiav tawm ntawm kev txhaj tshuaj steel yog txheej txheem tsim nyog. Yog li no, cov kauj ruam no yog qhov tseem ceeb. Puas yuav quenching cuam tshuam rau qhov zoo ntawm cov khoom? Qhov tseeb, nws yuav, vim tias nws cov pa roj carbon ntsiab lus txiav txim siab qhov nyuaj thiab zoo. Yog tias koj xav kom ntseeg tau tias qhov ua tau zoo, tom qab ntawd qhov yuav tsum ua rau cov txheej txheem yuav tsum tsawg dua. Tom ntej no, peb yuav ua tib zoo tshuaj xyuas cov nyhuv ntawm quenching rau zoo. Twg?
Tom qab quenching thiab cua sov, yuav muaj ob txoj kev ua kom txias, ib qho yog isothermal cua txias, uas yog, txhawb ntxiv; lwm qhov yog nruam txias, uas yog, quenching zoo tib yam. Isothermal cua txias tuaj yeem muab tau pearlite, sorbite, troostite, bainite, thiab lwm yam raws li xav tau, thaum kev tso dej tawm mus yog xav tau martensite. Txhua yam kev txhaj tshuaj steel, tshuab qhov chaw, cuab yeej, thiab txhaj tshuaj pwm yuav tsum siv tom qab quenching thiab npau taws. Kev ua kom muaj zog thiab tawv thaum lub sijhawm quenching yog vim muaj cov roj ntsha ntawm martensite.
