9 CRT2MO Khoom Siv Roll Quenching: Cua sov kub = 880 ~ 900, quenching txias: raws li cov cai sib txawv thiab qhov nruab nrab txias xws li cov roj tso kua dej tuaj yeem siv tau.
Nco tseg: Kev zam txim yog Cr2 txias yob hlau.

3 qhov tseem ceeb taw tes kub (kwv yees tus nqi): AC1 = 740 C ar1 = 700 C Accm: 850 C 4 txwm Softening specifications rau cov khoom txias txias820 10) C 3 ~ 4H, nrog tus nqi txias ntawm.15 c / h, nrog lub cub tawg kom txias rau spindle-spindled softening specifications820 10) C 3 ~ 4H, (720 10) C 6 ~ 810, rauv taws ua kom sov li 600 xyoo, 7 teev tsaus ntuj Qeb 2-5, rau quenching thiab tempering ntawm 8 ishings ntawm mackness 62-65 hrc, Try hardness 82-63 HRC, Tryery 62. Query Tawv Kub 80-170 C, Hardness 62. Query Tempering 150-170 C, Hardness 60-62hrc.