摘要
通过接触式、水浸式超声波探伤和扫描电子显微镜分析、能谱分析,试验研究铝合金罐体封头板经过旋压后产生分层的原因。试验结果表明,板材中部含有片状密集排布的金属间化合物,它们将铝合金基体割裂,破坏了组织均匀性。探讨了金属内部缺陷的危害和通过提高金属纯净度降低内部缺陷含量的方法,以及超声波探伤和旋压自检对质量控制的作用。
Causes of vessel head layering of aluminum tanks after spinning are investigated with contact and immersion ultrasonic testing, SEM, and EDS. The results show that there are lamellate intermetallic compounds concentrated in the middle of the tank sheet. These defects separate the matrix and destroy the microstructural homogeneity. Discussion is con- ducted on the harm of internal defects, reduction of internal defects by improving alloy puri- ty, and the effect of ultrasonic testing and self-inspection by spinning on the quality control.
出处
《轻合金加工技术》
CAS
北大核心
2018年第3期21-25,共5页
Light Alloy Fabrication Technology
基金
国家国际科技合作专项项目(项目编号2014DFA50210)
南宁市技术创新项目(项目编号2015-1-1).
关键词
铝合金罐体封头
旋压
分层
内部缺陷
超声波探伤
vessel head of aluminum tank
spinning
layering
internal defect
ultrason- ic testing
作者简介
黄程毅（1987-），女，广西南宁人，工程师，从事铝合金材料加工工作。
