6061铝合金挤压环状条纹分析及挤压工艺对环状条纹的影响  

Analysis of Annular Stripe and Effect of Extrusion Process on Annular Stripe

作　　者：兰天虹[1] 卢刚[1] 黄飞 李振 韦祖祥 闫焱[1] Lan Tianhong;Lu Gang;Huang Fei;Li Zhen;Wei Zuxiang;Yan Yan(Guangxi Key Laboratory of Materials and Processes of Aluminum Alloys,Guangxi Nannan Aluminum Processing Co.,Ltd.)

机构地区：[1]广西南南铝加工有限公司,广西铝合金材料与加工重点实验室

出　　处：《特种铸造及有色合金》2023年第7期985-988,共4页Special Casting & Nonferrous Alloys

基　　金：2021年江南区科学研究与技术开发计划资助项目(2021111701)。

摘　　要：通过组织观察,结合力学性能试验和拉伸断口形貌分析等方法对环状条纹进行分析,采用正交试验方法研究挤压工艺对6061铝合金环状条纹的影响。结果表明,切尾长度为4m时,6061铝合金环状条纹组织连续未受破坏,力学性能满足标准要求,低倍组织的差异会影响其氧化效果;增加压余长度或降低铸锭温度能够有效减短环状条纹长度。The annular stripe was analyzed by structure observation,combining with mechanical property test and tensile fracture observation.Effects of extrusion process on 6061 aluminum alloy annular stripe were investigated by orthogonal testing method.The results indicate that the structure of annular stripe is continuous and undamaged with a cutting length of 4 m,and mechanical properties meet the standard requirements.The difference of low-magnification structure affects the oxidation effect,and the length of annular stripe can be reduced by increasing the length of discard or decreasing the temperature of ingot.

关 键 词：挤压圆棒 环状条纹 显微组织 挤压工艺 

分 类 号：TG146.21[一般工业技术—材料科学与工程]