体育器材用Al-Si-Mg铝合金的压铸工艺优化  

Optimization of Die Casting Process of Al-Si-Mg Aluminum Alloy for Sportss Equipment

作　　者：王方雨[1] 张王京 WANG Fangyu;ZHANG Wangjing(Physical Education College,Yichun University,Yichun 336000,China;School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)

机构地区：[1]宜春学院体育学院,江西宜春336000 [2]河北科技大学材料科学与工程学院,河北石家庄050018

出　　处：《热加工工艺》2023年第13期75-78,84,共5页Hot Working Technology

基　　金：江西省教育规划课题(19YB216)。

摘　　要：分别采用不同的浇注温度、模具温度和充型速度对Al-Si-Mg铝合金体育器材试样进行生产,并对其进行了力学性能测试分析和X-ray无损检测分析。经过试验优化,最终结果为:在浇注温度从675℃升高至715℃、模具温度从100℃升高至300℃以及快充型速度从1.5 m/s升高至3.5 m/s的过程中,合金的强度总体上为先上升后下降。当浇注温度为695℃、模具温度为250℃及充型速度为2.0 m/s时,合金的抗拉强度得到最大值(287.11 MPa),屈服强度同样为最大值(190.53 MPa),伸长率3.66%。经过X-ray无损探伤并未观测到压铸合金有明显的卷气和缩孔等铸造缺陷,可以得到力学性能优异、组织致密的Al-Si-Mg压铸体育器材产品。Al-Si-Mg aluminum alloy sports equipment samples were produced with different pouring temperature,die temperature and filling speed respectively,and their mechanical properties were tested,and analyzed and X-ray nondestructive testing analysis was carried out.After experimental optimization,the final results are as follows:in the process of increasing the pouring temperature from 675℃to 715°C,the die temperature from 100℃to 300℃,and the fast filling speed from 1.5 m/s to 3.5 m/s,the strength of the alloy generally increases first and then decreases.When the pouring temperature is 695C,the die temperature is 250C and the flling speed is 2.0 m/s,the tensile strength of the alloy reaches the maximum value(287.11 MPa),the yield strength is also the maximum value(190.53 MPa),and the elongation is 3.66%.After X-ray non-destructive testing,no obvious casting defects such as air entrainment and shrinkage are observed in the die-casting alloy.Al-Si-Mg die-casting sports equipment products with excellent mechanical properties and dense structure can be obtained.

关 键 词：Al-Si-Mg铝合金 浇注温度 模具温度 充型速度 

分 类 号：TG249.28[金属学及工艺—铸造]