Numerical Simulation of Solidification Process of 40CrNiMo Steel 35 t Polygonal Ingot

Special Steel ›› 2014, Vol. 35 ›› Issue (5): 26-29.

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Numerical Simulation of Solidification Process of 40CrNiMo Steel 35 t Polygonal Ingot

Li Weiping¹ , Qian Guogang¹ , Ji Kejin² , Ning Jiajun³ , Ao Guangwu⁴

1 Machinery Manufacture Test Division, 2 Branch of Zhongxin Special Steel Research Institute, 3 Sell General Co,Hubei Xinyegang Co Ltd, Huangshi 435001 ；
4 School of Application Technology,Liaoning University of Science and Technology, Anshan 114051；

Received:2014-04-16 Online:2014-10-01 Published:2022-09-01

40CrNiMo钢35 t 多边形铸锭凝固过程的数值模拟

李卫平¹，钱国钢¹，季克进²，宁佳君³，敖广武⁴

湖北新冶钢有限公司1机制事业部,2中信特钢研究院新冶钢研究分院,3销售总公司，黄石 435001；
4辽宁科技大学应用技术学院，鞍山 114011；

作者简介:李卫平(1969-)，男，高级工程师，黄石理工学院(本科)毕业，特殊钢产品凝固数值模拟及工艺研究。

Abstract

Abstract: A mathematic model for solidification process of 35 t polygonal ingot of 40CrNiMo steel (/% ： 0.37-0.44C, 0.17-0.34Si, 0.50-0.80Mn, ≤0.035P, ≤0.035S, 0. 60-0.90Cr, 1.25-1.65Ni, 0.15-0.25Mo) has been established by using three-dimensional software Procast to simulate the ingot temperature field and steel shrinkage rate during pouring (for 1313 s) and mold-filling solidification (for 73942 s) process. Results show that the simulation-calculated complete solidification time of ingot-20.5 h is basically the same as measured solidification time of ingot in situ-22 h； the shrink rate of steel is ≤2.5% , the cast ingot has no secondary pipe and only has light porosity.

Key words: 40CrNiMo Steel, 35 t Polygonal Ingot, Solidification Process, Numerical Simulation

摘要： 运用三维铸造软件Procast建立了40CrNiMo合金钢(/%:0.37~0.44C,0.17~0.34Si,0.50~0.80Mn,≤0.035P,≤0.035S,0.60~0.90Cr,1.25~1.65 Ni,0.15~0.25Mo)35 t多边形铸锭凝固过程的数学模型,模拟铸锭的浇注(1313 s)、充型凝固(73942 s)过程铸锭的温度场和钢的凝固收缩率。结果表明,模拟计算得出铸锭完全凝固时间20.5 h与现场测量的凝固时间22 h基本一致;钢的凝固收缩率≤2.5%,铸锭无二次缩孔,疏松轻微。

关键词: 40CrNiMo钢, 35 t多边形铸锭, 凝固过程, 数值模拟

Li Weiping , Qian Guogang , Ji Kejin , Ning Jiajun , Ao Guangwu. Numerical Simulation of Solidification Process of 40CrNiMo Steel 35 t Polygonal Ingot[J]. Special Steel, 2014, 35(5): 26-29.

李卫平, 钱国钢, 季克进, 宁佳君, 敖广武. 40CrNiMo钢35 t 多边形铸锭凝固过程的数值模拟[J]. 特殊钢, 2014, 35(5): 26-29.

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Numerical Simulation of Solidification Process of 40CrNiMo Steel 35 t Polygonal Ingot

40CrNiMo钢35 t 多边形铸锭凝固过程的数值模拟

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