Study on mould taper optimization for high speed billet continuous caster;
方坯高速连铸结晶器锥度优化研究
Research on copper plate taper of slab mold;
板坯结晶器铜板锥度的研究
The Development of Control System for Taper Wire Cutting Tool;
锥度线切割机床微机控制系统的开发
According to the requests of API connecting casing pole to connecting intensity and sealed capability,the paper analyzes the effect of taper tolerance of pipe external thread and coupling internal thread on using properties of casing pole.