铝合金金属型加压充型能力的试验研究  

Experimental Study on Pressurized Filling Capacity of Aluminum Alloy in Metal Mold

作　　者：张海英[1] 白玲[1] 邢书明[2] 

机构地区：[1]郑州职业技术学院材料工程系,河南郑州450121 [2]北京交通大学机电学院,北京100044

出　　处：《铸造》2013年第7期685-687,共3页Foundry

摘　　要：铝合金的液态充型能力是决定铝合金铸件力学性能、成形完整性和表面质量的关键因素。本研究采用自主设计的阿基米德螺旋线试验模具,对液态铝合金熔体在金属型中加压充型能力进行了试验研究。结果表明:液态铝合金充型能力随着充型压力和浇注温度的增大而增大,随着充型速度的增大而降低;在对充型能力的各个影响因素中,充型压力是最显著因素,浇注温度和充型速度次之,充型压力和充型速度的交互作用对充型能力的影响较小;充型压力对液态铝合金熔体充型能力的影响规律可以用线性增函数来描述。Filling capacity of liquid aluminum alloy was the key factor of mechanical properties, forming integrity and surface quality of aluminum alloy castings. In this paper, the experimental Archimedean spiral mold designed by author was adopted, by experimental study on pressurized filling capacity of liquid aluminum alloy, the results show that the filling capacity increased with increasing of filling pressure and pouring temperature, and the filling capacity decreased with filling speed increasing. Among all factors that had influence on the filling capacity, filling pressure was the most significant factor, followed by pouring temperature and filling speed and interaction of filling pressure and filling speed was much small. Influence of filling pressure on filling capacity could be described as linear increasing function.

关 键 词：A356铝合金 金属型 充型能力 工艺参数 

分 类 号：TG146.21[一般工业技术—材料科学与工程]