铝合金消失模铸造三单元浇注系统的试验研究

Three Unites Gating System of Aluminum Alloy Casting in Lost Foam Casting

试验研究了消失模铸造中浇注系统截面比对铝合金铸件质量的影响，确定了适宜的浇注系统截面比。试验结果表明，消失模铸造铝舍金铸件宜采用开放式浇注系统，对三单元浇注系统，合适的截面比是：∑F直：∑横：∑F内=1．00：（1．10～1．20）：（1．30～1．50）

Effects of section-ratio of the three gating system on the quality of aluminum alloy casting in lost foam casting were investigated. The proper section-ratio of the three gating system can be determined. The experimental results show that the aluminum alloy casting in lost foam casting should adopt open-gating system, For gating system with three unites, its section-ratio is summation Fdowngate ： summation Facrossgate ： summation F ingate= 1.00 ： （ 1.10～ 1.20） ： （ 1. 20～ 1.50）.