高压蒸汽室铸钢件砂型铸造工艺模拟研究  

Numerical simulation of sand casting process for high-pressure steam chamber steel castings

作　　者：蔡佳骏 张亮[1] 夏双喜 程方亮 刘浩[1] 刘富初 CAI Jiajun;ZHANG Liang;XIA Shuangxi;CHENG Fangliang;LIU Hao;LIU Fuchu(School of Mechanical Engineering and Electronic Information,China University of Geosciences,Wuhan 430074,Hubei,China)

机构地区：[1]中国地质大学(武汉)机械与电子信息学院,湖北武汉430074

出　　处：《金属加工（热加工）》2024年第5期109-115,121,共8页MW Metal Forming

基　　金：教育部产学合作协同育人项目2022年第一批立项项目(No.220604555150617);国家级大学生创新创业训练计划项目(No.202310491008、 No.202310491028、No.202310491045、No.202310491065、No.S202310491121和No.S202310491010);中国地质大学(武汉)教学实验室开放基金项目(No.SKJ2023125);广东省基础与应用基础研究基金自然科学基金面上项目(No.2024A1515013258);中央引导地方科技发展资金自由探索类基础研究项目(No.2021Szvup158、No.2021Szvup159);材料成形与模具技术国家重点实验室开放课题研究基金(No.P2021-020);中央高校基本科研业务费专项资金资助项目(No.CUG2106346)。

摘　　要：基于高压蒸汽室铸钢件的结构特点和铸造工艺要求,设计了该铸钢件的砂型铸造初步方案,并采用ProCAST软件进行了充型和凝固收缩数值模拟研究。结果表明:充型过程平稳,未出现浇不足现象,但在蒸汽室底座厚大部位、蒸汽室顶部凸台处出现了大体积缩孔,同时铸件中产生了分散的缩松缺陷。结合模拟结果,对缺陷部位增加了冒口和冷铁,改进后的模拟结果良好,没有缩孔缺陷。Based on the structural characteristics and casting requirements of high-pressure steam chamber steel castings,a preliminary scheme of sand casting process for steel castings was designed,and the simulation of filling and solidification shrinkage was carried out by using ProCAST software.The simulated result show that filling is stable and no insufficient pouring occurred.However,large volume shrinkage holes are appeared in the bottom thick part and top boss of the steam chamber,and dispersed shrinkage defects are produced in the castings.Based on the simulation results,the riser and cold iron are added to the defect part,and its simulation results show that the optimized designed casting process is good without shrinkage hole defects.

关 键 词：高压蒸汽室铸件 ZG15Cr2Mo1 砂型铸造 工艺模拟 PROCAST 

分 类 号：TF777[冶金工程—钢铁冶金]