双腔铸造铝活塞毛坯壁厚差的模具改进技术  

Die Improvement Technology of Wall Thickness Difference of Aluminum Piston Blank in Double Cavity Casting

作　　者：朱荣华 Zhu Rong-hua(Huamin Nanping Automobile Fittings Group Co.LTD.,Nanping,Fujian 353000)

机构地区：[1]华闽南配集团股份有限公司,福建南平353000

出　　处：《内燃机与配件》2022年第20期56-58,共3页Internal Combustion Engine & Parts

摘　　要：一模双腔模具组件铸造铝活塞,其铸造效率是一模一腔的两倍,铝液的损耗是一模一腔的二分之一。所以一模双腔模具结构一直以来是行业中认可的优良结构。不足之处是所铸造铝活塞毛坯裙部径向最大厚度处与最小厚度处之间的厚度差大,满足不了行业中的高精度铸造的要求。针对双腔铸造铝活塞壁厚差难以解决的问题,深入研究铸造工艺与模具结构关系,多次实验和探索,获得了一种解决双腔铸造铝活塞毛坯壁厚差的模具改进技术。The casting efficiency of aluminum piston cast by the first mock examination double cavity mold assembly is twice that of the first mock examination one cavity, and the loss of aluminum liquid is half of that of the first mock examination one cavity. Therefore, the the first mock examination double cavity mold structure has always been an excellent structure recognized in the industry. The disadvantage is that the thickness difference between the radial maximum thickness and the minimum thickness of the cast aluminum piston blank skirt is large, which can not meet the requirements of high-precision casting in the industry. Aiming at the problem that the wall thickness difference of aluminum piston in double cavity casting is difficult to solve, the relationship between casting process and die structure is deeply studied. Through many experiments and exploration, a die improvement technology to solve the wall thickness difference of aluminum piston in double cavity casting is obtained.

关 键 词：双腔铸造 铝活塞 铸造毛坯壁厚差 技术改进 

分 类 号：U464.1331[机械工程—车辆工程]