基于数值模拟的铸钢冷却壁防熔穿工艺研究  

Study on Anti-Penetration Process of Cast Steel Cooling Wall Based on Numerical Simulation

作　　者：陈佳伟 龚小龙 樊自田[1] 蒋文明[1] CHEN Jia-wei;GONG Xiao-long;FAN Zi-tian;JIANG Wen-ming(State Key Laboratory of Material Processing and Die and Mold Technology,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China)

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《铸造》2020年第7期716-721,共6页Foundry

摘　　要：基于铸造模拟仿真软件,对比研究了铸钢冷却壁充型凝固过程中有无防熔穿工艺的冷却水管温度场变化,并通过实际浇注验证了冷却水管填充固体冷却材料防熔穿的可行性。结果表明:冷却水管填充固体冷却材料,可使冷却水管的最高受热温度由1504.1℃降低至1492.4℃,低于冷却水管液相线温度,确保冷却水管不会发生熔穿。实际浇注完成后对冷却壁剖开检测,发现冷却水管内部无熔穿,冷却水管与冷却壁基体的界面结合处除少量的杂质外,已形成较好的冶金熔合。Based on the casting simulation software,the temperature field changes of cooling water pipes with and without anti-penetration process during the mold filling solidification of cast steel cooling wall were compared,and the feasibility of anti-penetration of cooling water pipe filled with solid cooling material was verified by actual pouring.The results show that the maximum heating temperature of the cooling water pipe can be reduced from 1504.1℃to 1492.4℃,which is lower than the liquidus temperature of the cooling water pipe.After actual pouring was completed,the cooling wall was cut open and tested.It is found that there is no molten penetration inside the cooling water pipe,and the interface between the cooling water pipe and the cooling wall substrate has formed a good metallurgical fusion except for a small amount of impurities.

关 键 词：铸钢冷却壁 冷却水管 铸造仿真 防熔穿 界面结合 

分 类 号：TG260[金属学及工艺—铸造]