摘要
针对我国用传统工艺（铸造－挤压工艺）生产５６０ｍｍ×７０ｍｍ超大特厚９１９铝合金管出现的多种质量缺陷（如力学性能差，组织中存在光晶和花边等缺陷），提出了一种生产这类超大特厚管的新工艺（由快速铸造、高柱体自由冲扩孔、高温慢速润滑挤压、混合校直等不同种类的加工工艺组合而成），成功地生产出了合格产品。
Due to the limitation of equipment condition of our country, dia560 mm×70 mm extremely big and thick tubes produced by using conventional technology have a few kinds of failures in microstructure and poor mechanical properties. A new technology is presented in this research. The application of the new technology showed good effect on the production of the extremely big and thick high quality aluminium alloy tube.
出处
《中南工业大学学报》
CSCD
北大核心
1997年第2期178-181,共4页
Journal of Central South University of Technology(Natural Science)
基金
国防科工委基金
