摘要
为了提高30CrMnSi钢的冲击韧度,用亚温淬火+中温回火工艺代替常规调质工艺。结果表明:改进工艺不降低试样的硬度,而冲击吸收功从54.5 J提高到86.7 J,达到原来的1.6倍,同时避免了第二类回火脆性,满足了高端液压油缸的工况环境要求。
In order to improve the impact toughness of 30CrMnSi steel, the conventional quenching and tempering process was replaced with sub-temperature quenching ＋ medium temperature tempering process. The results show that： the improved process does not reduce the hardness of samples, and the impact absorption energy is increased from 54.5 J to 86.7 J, up to 1.6 times. The tempering brittleness of the second type is avoided. It meets the requirements of high hydraulic cylinder working conditions.
出处
《热加工工艺》
CSCD
北大核心
2016年第4期168-170,共3页
Hot Working Technology
基金
河南省科技厅项目(132300410459)
关键词
30CRMNSI钢
热处理工艺
亚温淬火
冲击韧度
调质
30CrMnSi steel
heat treatment
sub-temperature quenching
impact toughness
quenching and tempering
