Numerical Simulation for Vacuum Casting and Solidification Process of 39 t Ingot of Steel 42CrMo4 and Production Practice

Special Steel ›› 2016, Vol. 37 ›› Issue (01): 1-4.

Numerical Simulation for Vacuum Casting and Solidification Process of 39 t Ingot of Steel 42CrMo4 and Production Practice

Li Shengli，Guan Rui，Ai Xingang, Xu Changjun，Hu Lin

School of Materials and Metallurgy, Liaoning University of Science and Technology, Anshan 114051

Received:2015-08-16 Online:2016-02-01 Published:2022-08-15

42CrMo4钢39t锭真空浇铸和凝固过程数值模拟和生产实践

李胜利，关锐，艾新港，许长军，胡林

辽宁科技大学材料与冶金学院，鞍山114051

作者简介:李胜利(1967-)，男，博士(2006年东北大学)，教授,1988年鞍山钢铁学院(本科)毕业,钢铁材料和冶金工艺研究。
基金资助:
国家自然科学基金(51374125)，
教育部2011年度高等学校博士学科点专项科研基金项目 (20112120120003)，
辽宁省教育厅项目(L2015251) 资助

Abstract

Abstract: The computer simulation for vacuum casting and solidification process of 39 t ingot of steel 42CrMo4 (/% : 0. 38 ~0. 45C, 0. 90 ~ 1.20Cr, 0. 025Mo) has been carried out by using Any casting software to get that with cast liquid temperature 1 527 °C and superheat extent 40°C the casting time for 39 t ingot is 18.78 min including ingot body for 10 min and casting head for 8.78 min and the predicted shrinkage cavity location only occurs at center of casting head. The results of production practice in situ show that the forged die block is qualified by grade Ⅱ ultrasonic detection, and the yield of products increases to 71.35% from 65% before process improvement.

Key words: Die Steel 42CrMo4, 39 t Ingot, Casting Process, Numerical Analysis, Yield of Products

摘要： 用Anycasting铸造软件对42CrMo4钢（/%:0.38~0.45C,0.90~1.20Cr,0.025Mo）39t锭真空浇铸和凝固过程进行计算机模拟,确定浇铸钢水温度1527℃,过热度40℃时39t钢锭充型时间18.78 min,其中锭身10min,帽口8.78 min,预判缩孔仅出现在帽口中心处。现场生产实践表明,铸锭锻造后的模块经Ⅱ级超声波探伤合格,成材率从工艺改进前的65%提高至71.35%。

关键词: 模具钢42CrMo4, 39t钢锭, 浇铸工艺, 数值分析, 成材率

Li Shengli, Guan Rui, Ai Xingang, Xu Changjun, Hu Lin. Numerical Simulation for Vacuum Casting and Solidification Process of 39 t Ingot of Steel 42CrMo4 and Production Practice[J]. Special Steel, 2016, 37(01): 1-4.

李胜利, 关锐, 艾新港, 许长军, 胡林. 42CrMo4钢39t锭真空浇铸和凝固过程数值模拟和生产实践[J]. 特殊钢, 2016, 37(01): 1-4.

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