摘要
介绍了双带快冷法制备金属带材新技术的基本原理和特点。针对1050纯铝带材的成形,从理论和实验两个方面分析了采用孔径为6mm的5孔喷嘴时,熔体射流的稳定性和冷却带线速度对带材质量的影响;考察了不同冷却带线速度条件下成形带材的组织和力学性能。发现冷却带线速度越高,所成形带材的组织越细小、力学性能越好;在本实验条件下,稳定制备1050纯铝带材的合理工艺参数是:浇注温度710℃,气体压力0.0075MPa,冷却带线速度2m/s。
The principle and characteristics of double cooling-strip rapid solidification technique for strip forming are introduced. Aiming at the forming of aluminum strip with jet nozzle having 5 holes of 6 mm in diameter, the effects of two main factors on the strip quality, the jet stability of melt metal and cooling-strip speed were discussed through both theory and experiment. The microstructure and mechanical properties at different cooling-strip speeds were examined ,and the results show that the microstructure is more fine and the mechanical properties are higher with increasing cooling-strip speed . The appropriate technology parameters for fabricating aluminum strip are: pouring temperature 710 ℃, gas pressure 0.007 5 MPa and cooling-strip speed 2 m/s.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2004年第11期1804-1809,共6页
The Chinese Journal of Nonferrous Metals
基金
国家杰出青年科学基金资助项目(50125415)
国家自然科学基金
上海宝钢集团公司联合资助项目(50171007)
关键词
快速凝固
双带快冷法
金属带材
铝
rapid solidification
double cooling-strip rapid solidification technique
metal strip
aluminum
