A mandrel mill hydraulic screwdown control was successfully established at Wakayama Steel Works of Sumitomo Metal Industries, Ltd, in 1985.
一套连轧管机油压压下控制系统于1985年在日本住友金属公司和歌山钢铁厂使用成功。
2
Since the mandrel is the most critical thermal deformation operation tool for the retained mandrel pipe mill (MPM) process, its operation efficiency is decisive to steel tube operational cost.
芯棒是限动芯棒连轧钢管机组中最重要的热变形工具，其使用效果决定着钢管生产成本的高低。
3
A hydraulic limiter for the mandrel of a pipe mill relates to the hot rolling pipe mill of seamless steel pipe.