含钒机械轴承钢的锻造工艺优化研究
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摘要
采用不同工艺参数进行了新型含钒机械轴承钢锻造,并进行了锻造工艺优化前后的冲击性能和耐磨损性能的测试与分析。结果表明:与工艺优化前相比,工艺优化后的冲击韧度增大了7.9 J/cm~2(32.8→40.7 J/cm~2),磨损体积减小了6.8×10~(-3)mm~3(18.4×10~(-3)→11.6×10~(-3)mm~3),新型含钒机械轴承钢试样的冲击性能和耐磨损性能均得到显著提高。新型含钒机械轴承钢的优化锻造工艺为1140℃始锻温度,900℃终锻温度,拔长比4。
A new type of vanadium bearing steel was forged by using different process parameters. The impact property and wear resistance of samples before and after optimization of forging process were tested and analyzed. The results show that compared with before process optimization, the impact toughness and wear resistance after process optimization increase by 7.9 J/cm~2(32.8→40.7 J/cm~2) and 6.8×10~(-3) mm~3(18.4×10~(-3)→11.6×10~(-3) mm~3), respectively. The impact perameters and wear resistance of the new vanadium bearing steel are improved significantly. The optimized forging process of new vanadium bearing steel is initial forging temperature of 1140℃, final forging temperature of 900℃ and drawing out ratio of 4.
A new type of vanadium bearing steel was forged by using different process parameters. The impact property and wear resistance of samples before and after optimization of forging process were tested and analyzed. The results show that compared with before process optimization, the impact toughness and wear resistance after process optimization increase by 7.9 J/cm~2(32.8→40.7 J/cm~2) and 6.8×10~(-3) mm~3(18.4×10~(-3)→11.6×10~(-3) mm~3), respectively. The impact perameters and wear resistance of the new vanadium bearing steel are improved significantly. The optimized forging process of new vanadium bearing steel is initial forging temperature of 1140℃, final forging temperature of 900℃ and drawing out ratio of 4.
引文
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[3]邹磊,侯奎,孙清汝,等.影响高碳铬轴承钢轴承热处理质量的因素[J].金属加工(热加工),2017(9):7-11.
[4]曾伊琪,陈志辉,韩利战,等.GCr15轴承钢的碳化物超细化[J].轴承,2015(7):25-28.
[5]赵森.GCr15SiMn轴承圈锻造及锻后热处理[J].金属加工(热加工),2013(7):56-57.
[6]刘秀莲,班君,郑艳华,等.SG13Cr4Mo4Ni4V钢轴承套圈热处理工艺改进[J].轴承,2016(9):28-31.
[7]王瑞,张洋鹏,战东平,等.锻造工艺对航空轴承钢G13Cr4Ni4Mo4VA棒材冲击性能的影响[J].特殊钢,2015(6):56-58.
[8]马骏.轴承钢的加热工艺优化和设备改造[J].黑龙江科技信息,2014(21):74-74.
[9]赵辉,王红霞.机床轴承用新型合金钢的制备与性能研究[J].制造业自动化,2015(3):99-101.