铸造残余应力某些影响因素的研究  

Influence of Some Factors on the Residual Stress of Castings

作　　者：骞西昌[1] 李炳忠[2] 

机构地区：[1]北京航空材料研究所 [2]南昌航空工业学院

出　　处：《铸造技术》1996年第4期36-39,共4页Foundry Technology

摘　　要：对ＺＬ１０２合金冷却后的残余应力进行了研究，给出了应力－时间曲线．发现Ｅ形应力框的粗细杆横截面积比、应力杆长度和浇注温度等因素对ＺＬ１０２残余应力有着不同程度的影响，当粗细杆横截面积比为４时。The residual stress of aluminium alloy ZL102 after casting and cooling has been studied in this paper and the stress time curve has been presented It is pointed out that the residual casting stress of alloy ZL102 is influenced by the ratio of cross sections of stress bar in E type stress test frame,the langth of stress bar and pouring temperature in different extent and has a maximum value when the cross section area ratio between stress bars is 4

关 键 词：铸造 残余应力 铝合金 影响因素 

分 类 号：TG21[金属学及工艺—铸造] TG292