压铸工艺参数对半固态ZA43合金组织及力学性能影响  

Effects of Die Casting Process Parameters on Microstructures and Mechanical Properties of Semi-solid ZA43 Alloy

作　　者：曹风江[1] 张俊杰 谭建波[3] 李洁静[1] CAO Fengjiang;ZHANG Junjie;TAN Jianbo;LI Jiejing(Department of Mechanical Engineering,Cangzhou Vocational College of Technology,Cangzhou 061001,China;Xinxing Ductile iron Pipes Co.,Ltd.,Handan 056000,China;School of Material Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]沧州职业技术学院机械工程系,河北沧州061001 [2]新兴铸管股份有限公司,河北邯郸056000 [3]河北科技大学材料科学与工程学院,河北石家庄050018

出　　处：《铸造技术》2018年第9期2023-2027,共5页Foundry Technology

基　　金：河北省高等学校科学技术研究项目(ZD2015003)

摘　　要：采用电磁搅拌方法,通过正交试验研究压铸工艺参数与半固态ZA43合金力学性能之间关系,分析了显著影响因子对半固态ZA43合金组织及性能影响。结果表明,流变压铸压射比压为72 MPa,压射速度为2.5 m·s-1,半固态ZA43合金压铸试样组织呈球形或类球形,晶粒细小,分布均匀。压射比压和压射速度对半固态ZA43合金的力学性能影响较大,力学性能指标随压射比压的增大而提高,随压射速度的增大先提高后降低。The relationship between the die casting process parameters and the mechanical properties of semi-solid ZA43 alloy was studied by means of electromagnetic stirring and orthogonal test. The results show that the injection ratio of semi-solid ZA43 alloy is 72 MPa and the injection velocity is 2.5 m. s-1, the microstructure of semi-solid ZA43 alloy die casting sample is spherical or quasi-spherical, and the grain size is free and uniform distribution. The injection specific pressure and injection velocity have a great influence on the mechanical properties of semi-solid ZA43 alloy. The mechanical properties index increases with the increase of the injection specific pressure, and decreases with the increase of the iniection velocity.

关 键 词：半固态ZA43 流变压铸 压射比压 压射速度 

分 类 号：TG249.2[金属学及工艺—铸造] TG113