镁合金锻模的加热分析  

Heating Analysis of Forging Die for Magnesium Alloy

作　　者：侯会喜[1] 付传锋[2] 龚小涛[1] 胡亚民[3] 

机构地区：[1]西安航空职业技术学院,陕西西安710089 [2]中国南车集团戚墅堰机车车辆工艺研究所,江苏常州213011 [3]重庆工学院材料科学与工程学院,重庆400050

出　　处：《热加工工艺》2008年第9期45-47,51,共4页Hot Working Technology

基　　金：华中科技大学材料成形与模具技术国家重点实验室开放基金资助项目(06-1)

摘　　要：设计了含温度控制系统的等温锻造模具,利用"模膛"直接加热镁合金坯料,生产出合格的AZ31B镁合金电动螺丝刀套筒锻件。测定了模具的加热特性,得知设定温度为300℃,起始温度分别为23、130和210℃时的模具温度与时间的关系。试验结果分析表明,该镁合金等温锻造模具的加热性能良好,即不同起始温度下的温度上升速率、下降速率及温度曲线的走势均相近,满足了镁合金等温锻造的要求。The isothermal forging die with temperature control system was designed. The die cavity was used as heating chamber to heat magnesium alloy billets directly, by which the eligible electric screwdriver sleeve forgings of magnesium alloy AZ31B were manufactured. The heating characteristic of the heated die cavity was measured, the relationship curves between temperature and time were obtained when the setting temperature was 300℃ and the initiatory heating temperatures were 23℃, 130℃ and 210℃ respectively. The analysis of the test result indicates that the temperature-time behavior of isothermal forging die cavity at different initiatory temperature is about the same.

关 键 词：镁合金 锻模 模膛 温度-时间曲线 

分 类 号：TG319[金属学及工艺—金属压力加工]