降低40CrMoV5-1钢矫直辊工频感应淬火开裂风险
|
摘要
为了降低40CrMoV5-1钢矫直辊工频感应淬火开裂风险,同时满足其工频感应淬火硬度要求,利用线切割切取40CrMoV5-1模具钢试块,先对试块进行淬火处理并检测硬度,确定合适的最低淬火温度。矫直辊工频感应淬火时,控制好淬火起始位置和结束位置的加热和冷却。淬火结果表明,工频感应淬火温度范围为990～1010℃时,矫直辊硬度满足技术要求,硬度达到了57～58 HRC,并且没有任何裂纹产生。
In order to meet the hardness requirement of power frequency inductive quenching of 40 CrMoV5-1 die steel straightener roll and avoid the cracking of the straightener roll after the power frequency inductive quenching,samples cut from 40 CrMoV5-1 die steel by wirecutting were quenched and its hardness was tested in order to find an appropriate minimum quenching temperature. Heating and cooling in the starting position and ending position of the straightener roll should be well controlled when it is quenched by power frequency heating. The result shows that the hardening temperature in the range of 990-1010 ℃ can make the 40 CrMoV5-1 straightener roll meet the hardness of technical requirement. The hardness of the straightener roll reaches 57-58 HRC and there is no cracking on the straightener roll.
In order to meet the hardness requirement of power frequency inductive quenching of 40 CrMoV5-1 die steel straightener roll and avoid the cracking of the straightener roll after the power frequency inductive quenching,samples cut from 40 CrMoV5-1 die steel by wirecutting were quenched and its hardness was tested in order to find an appropriate minimum quenching temperature. Heating and cooling in the starting position and ending position of the straightener roll should be well controlled when it is quenched by power frequency heating. The result shows that the hardening temperature in the range of 990-1010 ℃ can make the 40 CrMoV5-1 straightener roll meet the hardness of technical requirement. The hardness of the straightener roll reaches 57-58 HRC and there is no cracking on the straightener roll.
引文
[1]张程,黄进峰,窦梦阳,等. H13钢回火组织及碳化物转变规律[J].金属热处理,2016(5):1-5.Zhang Cheng,Huang Jinfeng,Dou Mengyang,et al. Transformation rule of microstructure and carbides of H13 steel during tempering[J].Heat Treatment of Metals,2016(5):1-5.
[2]闫野,王倩,李波,等. 55钢与S55C钢丝杠光杆感应加热淬火比较[J].金属热处理,2014(4):37-40.Yan Ye,Wang Qian,Li Bo,et al. Comparision of induction hardened55 steel and S55 C steel screw polished rods[J]. Heat Treatment of Metals,2014(4):37-40.
[3]李军迎,陈学富,杨钊,等. 45钢曲轴的感应淬火工艺[J].金属热处理,2013(4):67-68.Li Junying, Chen Xuefu, Yang Zhao, et al. Induction hardening process of 45 steel crankshaft[J]. Heat Treatment of Metals,2013(4):67-68.
[4]吴德刚,赵利平,郑喜平.感应淬火对汽车半轴疲劳寿命的影响[J].热加工工艺,2017(14):194-196.Wu Degang,Zhao Liping,Zheng Xiping. Effect of Induction quenching on fatigue life of automobile semi-shaft[J]. Hot Working Technology,2017(14):194-196.
[5]张沈洁,李瑞卿,孔春花,等. 42CrMo钢驱动轮轴的感应热处理[J].金属热处理,2016(1):43-47.Zhang Shenjie,Li Ruiqing,Kong Chunhua,et al. Induction hardening of 42CrMo steel driving axle[J]. Heat Treatment of Metals,2016(1):43-47.
[6]陈杰. H13钢及其热处理[J].热处理技术与装备,2008,29(4):44-46Chen Jie. The study of H13 steel and its heat treatment[J]. Heat Treatment Technology and Equipment,2008,29(4):44-46.
[2]闫野,王倩,李波,等. 55钢与S55C钢丝杠光杆感应加热淬火比较[J].金属热处理,2014(4):37-40.Yan Ye,Wang Qian,Li Bo,et al. Comparision of induction hardened55 steel and S55 C steel screw polished rods[J]. Heat Treatment of Metals,2014(4):37-40.
[3]李军迎,陈学富,杨钊,等. 45钢曲轴的感应淬火工艺[J].金属热处理,2013(4):67-68.Li Junying, Chen Xuefu, Yang Zhao, et al. Induction hardening process of 45 steel crankshaft[J]. Heat Treatment of Metals,2013(4):67-68.
[4]吴德刚,赵利平,郑喜平.感应淬火对汽车半轴疲劳寿命的影响[J].热加工工艺,2017(14):194-196.Wu Degang,Zhao Liping,Zheng Xiping. Effect of Induction quenching on fatigue life of automobile semi-shaft[J]. Hot Working Technology,2017(14):194-196.
[5]张沈洁,李瑞卿,孔春花,等. 42CrMo钢驱动轮轴的感应热处理[J].金属热处理,2016(1):43-47.Zhang Shenjie,Li Ruiqing,Kong Chunhua,et al. Induction hardening of 42CrMo steel driving axle[J]. Heat Treatment of Metals,2016(1):43-47.
[6]陈杰. H13钢及其热处理[J].热处理技术与装备,2008,29(4):44-46Chen Jie. The study of H13 steel and its heat treatment[J]. Heat Treatment Technology and Equipment,2008,29(4):44-46.