Cov txheej txheem kev kho cua sov ib txwm ua rau tuag-casting pwm muaj quenching thiab tempering, ua raws li kev txhim kho tom ntej ntawm kev kho cov thev naus laus zis. Muab ntau yam ntaub ntawv siv rau kev tuag- casting pwm, siv tib cov txheej txheem kev kho deg thiab txheej txheem rau cov khoom sib txawv tau txais txiaj ntsig sib txawv. Shikefu tau npaj cov txheej txheem ua ntej ua ntej ua kom haum rau cov khoom siv pwm tshwj xeeb thiab cov txheej txheem kho saum npoo; los ntawm kev tsim cov txheej txheem ib txwm ua thiab siv cov kev kho mob tsim nyog rau cov khoom pwm sib txawv, pwm kev ua tau zoo yog txhim kho thiab kev pab cuam lub neej ntev.
Lwm txoj hauv kev rau kev nce qib kev kho cua sov thev naus laus zis koom nrog kev kho cua sov ib txwm siv nrog cov txheej txheem kho saum npoo av kom ntev lub neej kev pab cuam ntawm tuag-casting pwm. Piv txwv li, cov txheej txheem NQN- uas koom ua ke cov txheej txheem kev kho cua sov ntawm carbonitriding nrog cov pa quenching thiab tempering (tshwj xeeb, kev sib xyaw ua kom muaj zog ntawm carbonitriding, quenching, thiab carbonitriding)- tsis yog tsuas yog ua tiav cov tawv tawv tawv xwb tab sis kuj ua kom cov txheej txheem hardening zoo dua, diffuser zoo dua, thiab cov txheej txheem hardening. tempering stability thiab corrosion kuj. Yog li ntawd, tuag- casting pwm tau txais txiaj ntsig los ntawm kev txhim kho qhov zoo thiab kev ua haujlwm zoo thaum tuav cov khoom tseem ceeb zoo.