4^#美标螺纹钢筋的负偏差轧制  

MINUS-DEVIATION ROLLING OF 4~# ASTM THREADED REINFORCING BAR

作　　者：丛培轩 

机构地区：[1]承德宏达股份有限公司,067002

出　　处：《轧钢》1997年第3期38-40,共3页Steel Rolling

摘　　要：通过4＃美标（ASTMA615－87ε1）螺纹钢筋优化孔型设计及负偏差轧制的生产实践，提出实行负偏差轧制时，尤其是精轧延伸孔型系统的选择十分重要，使其变形均匀是实现负偏差轧制的必要条件．本设计延伸孔型系统选择了六角一方孔型系统，夹角90°，其轧件变形均匀，从而实现了负偏差轧制，并收到较好效果。This paper puts forward a viewpoint that deforming uniformly is necessary for achieving minus-deviation rolling. The stretching pass system of finish rolling is very impoftant when carrting out minus-deviation rolling by the optimized pass design and production practice of minus-deviation rolling of 4# ASTMA615- 87ε1 threaded reinforcing bar. In the design, we selected hexagon-square pass system with 90° included angle as stratching passes. Workpieces are deformed uniformly. Thereby, minus-deviation rolling was achieved and good effect was received.

关 键 词：螺纹钢筋 孔型设计 负偏差轧制 

分 类 号：TG335.64[金属学及工艺—金属压力加工] TG332