ProCAST在金属型重力铸造充型和模具温度场中的应用  

Simulation of Mold Filling and Temperature Field of Mold in Metal Mold Gravity Casting by ProCAST

作　　者：汪煦[1] 赵玉涛[1] 苏大为[1] 周堃[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《铸造》2008年第12期1263-1266,共4页Foundry

基　　金：江苏省科技成果转化项目(BA2005054);教育部重点基金资助项目(00170);江苏省高技术研究项目(BG2005026)

摘　　要：金属型模具热平衡状态是影响铸件质量及模具寿命的关键因素,模具的温度场决定了模具承受热应力的程度。运用有限元分析软件ProCAST对金属型重力铸造中模具温度场进行了连续铸造过程的热分析,研究了自然冷却条件和强制冷却条件对模具温度场的影响。结果表明,多周期循环浇注时,随着循环浇注次数的增加,温度是不断变化的,当循环浇注7次后,模具内部建立了相对稳定的温度梯度,模具逐渐达到了热平衡状态。Heat balance of metal mold is critical to the quality of castings and the serving life of the mold. Temperature distribution of mold determines the degree that the mold enduring thermal stress. Temperature distribution of mold in metal mold gravity casting has been analyzed by using FEM software ProCAST. The influences of natural cooling condition and force cooling condition have been investigated. The results showed that temperature changed with the increase of casting cycles, the steady temperature gradient was founded inside casting mold in seven casting cycles, and then heat balance of metal mold was reached gradually.

关 键 词：金属型重力铸造 模具 充型模拟 热平衡 温度场 

分 类 号：TG249.3-39[金属学及工艺—铸造]