ʻO 9 cr2mo mau mea no ka Cr2 cold roll steel ka mea nui i ka ʻoihana i hoʻohana ʻia i ka hana ʻana i ke anuanu i ʻōwili ʻia me ka roller of roller of cold die and punch etc forging akā nui ka poʻe ʻōlelo ʻaʻole ʻike e pili ana i ka 9 cr2mo heat treatment method, no laila eia ka nui. e kamaʻilio e pili ana i 9 cr2mo ʻano lapaʻau wela, manaʻolana e lilo i spheroidizing annealing: 1 790 ~ 810 wela, isothermal, 650 ~ 670, 500 mai ka hoʻoluʻu ʻana i ka ea; 2 kinai: wela wela = 880 ~ 900, quenching cooling: e like me nā forgings like ʻole a me nā koi like ʻole, hiki ke hoʻohana ʻia ka mea hoʻoluʻu e like me ka wai PAG quenching fluid aila.
'Ōlelo Aʻo: ʻO ka forgings he mea maʻamau Cr2 cold roll steel.

3 Wela wahi koʻikoʻi (waiwai ma kahi kokoke):Ac1 =740 C Ar1 =700 C Accm :850 C 4 Nā kikoʻī hoʻomaʻamaʻa maʻamau no ka blank kaomi anu.820 10) C 3 ~ 4h, me ka helu hooluolu o.15 C/h, me ka umu hooluu malie a hiki i 650 C, 5 mea anu i kaomiia blank mai ka umu e hooluolu ana i na kikoo hooluolu.820 10) C 3 ~ 4h, (720 10) C 6 ~ 8h, a laila me ka umu hooluolu malie i 600 C, hoakaka no ka normalizing: normalizing mahana 900 ~ 920 C, paakiki 302-388HBW 7 Batch isothermal spheroidizing Annealing :790 810 C 2 ~ 3h, hoʻoluʻu kapuahi, 7O0-720 C 3 ~ 4h, paakiki 217HBW, Pearlitic kikokiko papa 2-5, hoakaka no ke kinai ana a me ka hoohuoi ana o 8 forgings o ka mesh carbide papa 2 1. Quenching wela 830-850 C, paakiki 62-65 HRC, hooluu wela 130- 150 C, oolea 62-65 HRC 2. ʻO ka mahana wela 840-860 C, ka paʻakikī 61-63 HRC, ka mahana wela 150-170 C, ka paʻakikī 60-62HRC.