公开(公告)号：US20230234116A1

公开(公告)日：2023-07-27

申请号：US17998807

申请日：2021-05-19

Applicant: JFE STEEL CORPORATION

Inventor： Ryuichi SUEHIRO ,  Naoki WATANABE ,  Ryosuke WATANABE

IPC: B21C47/14 ,  B21C47/04 ,  B65H23/195 ,  C21D8/02 ,  C21D9/46

CPC classification number: B21C47/146 ,  B21C47/045 ,  B65H23/195 ,  C21D8/0242 ,  C21D9/46

Abstract: Provided are methods that can prevent either or both of kinking and collapsing of a steel sheet coiled in coil form regardless of the characteristics of the steel sheet. A method of determining a tension pattern of tension applied to a steel sheet to coil the steel sheet in coil form comprises calculating the tension pattern using an apparent elastic modulus in a radial direction of a coil.