浇铸方式对卧式离心铸造AZ91镁合金管的影响  

Influence of Pouring Method of AZ91 Magnesium Alloy Pipe by Horizontal Centrifugal Casting

作　　者：关涌康 于宝义[1] 于博宁 吕舒宁 郑黎[1] GUAN Yongkang;YU Baoyi;YU Boning;LYU Shu’ning;ZHENG Li(School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学材料科学与工程学院,辽宁沈阳110870

出　　处：《热加工工艺》2020年第17期62-67,共6页Hot Working Technology

基　　金：国家自然科学基金资助项目(51605307);辽宁省自然科学基金资助项目(2017540683)。

摘　　要：利用数值模拟软件Flow-3D模拟了AZ91镁合金管卧式离心铸造过程,分析浇注速度、模具转速、浇铸方式对卧式离心铸造镁合金铸管充型过程及温度场的影响。模拟结果表明,最佳浇铸方式为逐层浇铸,最佳工艺参数为:浇铸速度2.67 kg/s、模具转速1050 r/min。并通过浇铸试验验证模拟结果的准确性。The horizontal centrifugal casting process of AZ91 magnesium alloy pipe was simulated by numerical simulation software Flow-3 D.The influences of the pouring rate,rotational speed and pouring method on filling process and temperature field of magnesium alloy cast tube by horizontal centrifugal casting were analyzed.The simulation results show that the best pouring method is layer-by-layer pouring,the optimum process parameters are pouring rate of 2.67 kg/s,mould rotational speed of 1050 r/min.The accuracy of the simulation results is verified by experiments.

关 键 词：数值模拟 卧式离心铸造 浇铸方式 AZ91镁合金 

分 类 号：TG249.4[金属学及工艺—铸造]