电渣熔铸钢锭应力场的模拟研究.pdfVIP

学兔兔 铸 造 Jun．2009 · 576· FOUNDRY V01．58 NO．6 电渣熔铸钢锭应力场的模拟研究 张 磊 ，尧军平 (1．南昌航空大学材料科学与工程学院，江西南昌330063；2．北京科技大学新金属材料国家重点实验室，北京100083) 摘要：针对电渣熔铸钢锭各部位温差大，易产生热应力及测量困难的特点，采用大型有限元分析软件ANsYs对电渣 熔铸过程中不同冷却水流量时的钢锭应力场进行了模拟研究。结果表明，随着冷却水流量增加，钢锭底部最大等效应 力和轴向应力均增大。模拟结果与实际相吻合，运用此模型可预测钢锭应力场状况，指导实际生产。 关键词：电渣熔铸；应力场；冷却水流量；数值模拟 中图分类号：TP391．9；TFI42+．3 文献标识码：A 文章编号：1001—4977(2009)06—0576—03 Simulation Analysis of SteeIIngot Stress Field in Electroslag Casting Process ZHANG Lei 一，YAO Jun·ping’ (1．School of Materials Science and Engineering，Nanchang Hangkong University， Nanchang 330063，Jiangxi，China；2．State Key Laboratory for Advanced Metals and Materials，University of Science and Technology Beijing，Beijing 1 00083，China) Abstract： Because of the great difference in temperature in different part of steeI ingot in electroslag casting process．the thermal stress iS easy to occur and difficult to measure．In view of this characteristics．the steeIingot stress fields with different flux of cooling water were simulated using the finite element analysis software ANSYS．The result shows．with the lncrease of flux of cooling water．both the maximum equivalent stress and the maximum axial stress gained fr0m the bosom of steeIingot are increased．The result of the simulation tallies with the practice．This model can be used to predict the condition of the steeI ingot stress field，and to direct practical production． Key words：electroslag casting；stress field；flux of cooling water：numerical simulation 电渣熔铸由于其独特的纯净化铸材与结晶组织致