公开(公告)号：US20150298190A1

公开(公告)日：2015-10-22

申请号：US14650037

申请日：2013-11-20

Applicant: POSCO

Inventor： Choong-Yun LEE ,  Sang-Hyeon LEE ,  Sung-Lim LEE

IPC: B21C47/28 ,  B21C47/18

CPC classification number: B21C47/28 ,  B21C47/18 ,  B21C47/24 ,  B21C47/323 ,  B21C49/00

Abstract: A mandrel of a coil box comprises: a cylindrical mandrel body having a center shaft disposed therein and a slot into which a front end portion of a hot bar is inserted; and a guide part which is arranged towards the inside of the mandrel body from a peripheral wall of one side of the slot so as to prevent the cooling and plastic deformation of the front end portion of the bar inserted through the slot.

Abstract translation: 线圈箱的心轴包括：具有设置在其中的中心轴的圆筒形心轴体和插入热棒的前端部的狭槽; 以及引导部，其从所述槽的一侧的周壁朝向所述心轴主体的内侧配置，以防止通过所述槽插入的所述杆的前端部的冷却和塑性变形。