1.9t扁锭浇铸D2冷作模具钢凝固过程及内部缺陷预报数学模拟  

Math Simulation on Casting and Solidifying Process of 1.9 t Slab Ingot of Cold Working Die Steel D2 and Internal Defect Prediction

作　　者：李英 苑晓冬 张东伟[1,2] 李胜利[2] 陶军[2] 艾新港[2] 

机构地区：[1]鞍钢集团工程技术有限公司,鞍山114001 [2]辽宁科技大学材料与冶金学院,鞍山114051

出　　处：《特殊钢》2011年第3期5-8,共4页Special Steel

摘　　要：采用三维铸造软件Procast模拟了钢厂1.9 t扁D2钢锭(%:1.40～1.60C、11.00～13.00Cr、0.70～1.20Mo、≤1.10V)浇铸和凝固过程。模拟结果表明,1.9 t模具扁钢的本体凝固时间为64 min,完全凝固时间为83min,与经验公式的计算结果相吻合;钢锭柱状晶厚度为150 mm左右,等轴晶宽度为260 mm左右;1.9 t扁锭内部无缩孔产生、疏松轻微。The casting and solidification process of 1.9 t slab ingot of steel D2 （% ： 1.40 - 1.60C, 11. 00 - 13.00Cr, 0. 70- 1.20Mo, ≤1. 10V） have been simulated by using three-dimension foundry software Procast. Results show that the solidification time of 1.9 t slab ingot body and whole ingot are respectively 64 rain and 83 min, it corresponds with calculation results by experience formula; the columnar crystal thickness is about 150 mm and the width of equiaxed crystal zone is about 260 mm; and there is no shrinkage cavity in 1.9 t slab ingot only with slight porosity.

关 键 词：冷作模具钢D2 扁钢锭 模铸 凝固过程 数学模拟 

分 类 号：TG244[金属学及工艺—铸造]