20CrMnTiH齿轮钢的淬透性计算及窄淬透性带控制
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摘要
采用非线性方程计算法计算20CrMnTiH钢末端淬透性,只需利用生产实际数据加以修正,就能进行精确的淬透性计算和预报,与实测值偏差不超过2HRC。采用化学成分设计和控制,保证20CrMnTiH钢△[C]不超过0.007%,△[Si]波动不超过0.04%,△[Mn]、△[Cr]不超过0.02%,△[Ti]不超过0.01%,△[Alt]不超过0.010%,[Ni]、[Cu]不超过0.05%,[Mo]、[W]、[V]不超过0.03%,[P]、[S]不超过0.020%,[N]和[B]分别不超过0.006 0%和0.000 5%,并控制碳偏析指数不超过1.035%,可实现国际先进水平的末端淬透性HRC4带宽控制。
The calculation method of the nonlinear equation is used to calculate the hardenability of 20 CrMnTiH steel,and it can only be corrected by the actual production data, and can be used to calculate and predict the hardenability accurately. The deviation between the calculated value and the measured value is not more than 2 HRC. By chemical composition design and control 20 CrMnTiH steel,it is to ensure △[C] less than 0.007%,△[Si] less than 0.04%, △[Mn],△[Cr]less than 0.02%,△[Ti] less than 0.01%,△[ Alt] less than 0.010%,[ Ni],[ Cu] no more than 0. 05%, [ Mo], [ W],[V] no more than 0.03%, [ P], [ S] no more than 0. 020%,[ N] and[B] no more than 0. 006 0% and 0.000 5% respectively, and the control of carbon segregation index is less than 1.035%,the end quenching can achieve the international advanced level of the permeability of HRC4 bandwidth control.
The calculation method of the nonlinear equation is used to calculate the hardenability of 20 CrMnTiH steel,and it can only be corrected by the actual production data, and can be used to calculate and predict the hardenability accurately. The deviation between the calculated value and the measured value is not more than 2 HRC. By chemical composition design and control 20 CrMnTiH steel,it is to ensure △[C] less than 0.007%,△[Si] less than 0.04%, △[Mn],△[Cr]less than 0.02%,△[Ti] less than 0.01%,△[ Alt] less than 0.010%,[ Ni],[ Cu] no more than 0. 05%, [ Mo], [ W],[V] no more than 0.03%, [ P], [ S] no more than 0. 020%,[ N] and[B] no more than 0. 006 0% and 0.000 5% respectively, and the control of carbon segregation index is less than 1.035%,the end quenching can achieve the international advanced level of the permeability of HRC4 bandwidth control.
引文
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[13]柳洋波,崔京玉,佟倩,等.Nb含量对20CrMnTi钢淬透性的影响[J].金属热处理,2014,39(5):47-50.
[14]陶建军,朱惠刚,吴小林.碳偏析和残余B对20CrMnTiH1齿轮钢淬透性的影响[J].特殊钢,2007,28(5):58-59.
[2]程雷,陈清.浅析20CrMnTi齿轮钢的淬透性[J].机电信息,2011(18):204-205.
[3]黄涛,宋满堂,梁启华,等.基于非线性方程法的齿轮钢淬透性计算模型[J].中国冶金,2012,20(3):14-17.
[4] Grossman M A. Correlation Between Jominy Test and Quenched Round Bars[J].Trans AINE, 1942,150(6):227-231.
[5] Just E. Formulas for Calculating Hardenability Curves[J].Metal Progress,1969,96(11):871-874.
[6]张素萍,王勇,郑永瑞.化学成分对20CrMnTi淬透性影响[C].2009年河北省轧钢技术与学术年会论文集,2009:236-239.
[7]乐为.20CrMnTiH齿轮钢的发展与质量要求[J].考试周刊,2011,73:164-166.
[8]王信康,郭子强.轿车用20CrMnTiH齿轮钢窄淬透性控制实践[J].河北冶金,2016(11):10-13.
[9]张健,周砚池.化学成分对20CrMnTi钢淬透性影响的研究[J].四川冶金,1996(4):69-70.
[10]丁礼权,吴润,罗国华,等.20CrMnTi齿轮钢淬透性试验研究[J].武钢技术,2016,54(3):26-32.
[11]傅代直.钢的淬透性手册[M].北京:机械工艺出版社.1973:19-20.
[12]冶金工业部钢铁研究院主编.合金钢手册[M].北京:上册第一分册:中国工业出版社,1971:184-185.
[13]柳洋波,崔京玉,佟倩,等.Nb含量对20CrMnTi钢淬透性的影响[J].金属热处理,2014,39(5):47-50.
[14]陶建军,朱惠刚,吴小林.碳偏析和残余B对20CrMnTiH1齿轮钢淬透性的影响[J].特殊钢,2007,28(5):58-59.