砂型铸造和低压铸造对超长铝合金箱染组织与力学性能的影响  

Influence of Low Pressure Casting and Sand Casting on Microstructure and Mechanical Properties of Ultralong Aluminum Beam

作　　者：李玲玉 王翔 孙克山 高超[1] 张炳荣[1] LI Lingyu;WANG Xiang;SUN Keshan;GAO Chao;ZHANG Bingrong(School of Mechanical and Automotive Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Shandong Tailai Aluminum Foundry Tech.Co.,Ltd.,Jinan 270011,China)

机构地区：[1]齐鲁工业大学(山东省科学院)机械与汽车工程学院,山东济南250353 [2]山东泰来铸铝科技有限公司,山东济南270011

出　　处：《铸造技术》2022年第3期197-202,共6页Foundry Technology

基　　金：山东省重点研发计划项目(2019QYTPY057);山东省自然科学基金项目(ZR2021ME023)。

摘　　要：研究了低压金属型和砂型铸造的超长铝合金箱体的组织和性能。结果表明低压金属型铸造的铝合金箱体横梁和底座的性能均高于砂型铸造的,同样条件下,底座处的性能高于横梁处的。低压金属型铸造的晶粒比砂型铸造的细小,二次枝晶臂间距降低60%,组织更均匀,拉伸性能提高20%以上。The microstructure and properties of ultra-long aluminum alloy beam cast by low pressure die casting and sand casting were studied.The results show that the properties of the beam and the base of the beam cast by low pressure die casting are higher than those cast by sand casting.Under the same conditions,the properties of the base are higher than those of the beam.The grain size of low-pressure die casting is smaller than that of sand casting,the secondary dendrite arm spacing is reduced by 60%,the structure is more uniform,and the tensile properties are improved by more than 20%.

关 键 词：ZL 104铝合金 低压金属型铸造 砂型铸造 力学性能 微观组织 

分 类 号：TG292[金属学及工艺—铸造]