7050合金波音锻件用铸锭铸造工艺研究  

Study on Foundry Process of 7050Alloy Ingot Used for Boyin Forging

作　　者：段玉波 唐剑 黄平 杨荣东 刁文武 

机构地区：[1]西南铝业(集团)有限责任公司熔铸厂,重庆401326

出　　处：《铝加工》2001年第6期10-14,共5页Aluminium Fabrication

摘　　要：通过严格控制波音 70 5 0合金 5 5 0 m m铸锭的化学成分和熔铸工艺 ,解决了铸锭成型极易产生裂纹的问　　题 ,获得了小于一级晶粒度的细小晶粒和达到双一级要求的优良冶金质量 ,锻件探伤合格率为 10 0 % ,使波音 70 5 0合金锻坯生产实现国产化。With Control the composition and melting & casting process of Boyin 7050 alloy 550mm ingot strictly,Resolved the problem of form of ingot that crack easily in or after the casting process,The quality of ingot can be gained finally with crystal grain fineness which less than one grade and meritorious metallurgical quality up to double one grade, Percentage of acceptability detecting is up to 100%.It makes it homemade a reality that product the 7050 alloy ingot used for Boyin forging.

关 键 词：波音7050合金 φ550mm 成分控制 熔铸工艺 铸锭成型 冶金质量 

分 类 号：V261.31[航空宇航科学与技术—航空宇航制造工程]