Parameters Optimization of Semisolid Diecasting Process for Air-conditioners Triple Valve in HPb59-1 Alloy

摘要：

The disadvantages of air-conditioners triple valve in HPb59-l alloy processed by traditional solid state hot forging, such as larger forming loads, lower material utilization, larger subsequent machining allowance, nonuniform microstructure, are put forward. However, semisolid diecasting forming which can overcome the above shortcomings is a fascinating technology. The process paremeters which had a larger influence on filling ability of semisolid slurry and casting quality, such as pouring temperature, shot velocity and preheated temperature of the die, were chosen. Furthermore, based on orthogonal test, the semisolid diecasting process of a certain type triple valve was simulated with FLOW-3D. According to the analysis of temperature field, pressure field and surface defect concentration, the optimal process parameters such as pouring temperature 897.25 ℃, shot velocity 1.5 m/s and preheated temperature of the die 260 ℃, were obtained, and the effectiveness of the technology was well demonstrated by numerical simulation.

关键词： simulation semisolid diecasting HPb59-1 orthogonal test parameter optimization

作者: Guan-hai YAN Sheng-dun ZHAO Zheng-hui SHA

作者单位: School of Mechanical Engineering,Xian Jiaotong University,Xian 710049,China

会议类型: 国际会议

会议名称: 2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)

会议地点: 重庆

会议语种:英文

页码: 936-941

在线出版日期: 2010-09-17（万方平台首次上网日期，不代表论文的发表时间）