Search International and National Patent Collections

1. (WO2018159370) COLD ROLLER AND COLD ROLLING METHOD

Pub. No.:    WO/2018/159370    International Application No.:    PCT/JP2018/005853
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Wed Feb 21 00:59:59 CET 2018
IPC: B21B 3/02
B21B 45/02
Applicants: JFE STEEL CORPORATION
JFEスチール株式会社
Inventors: FUKUSHIMA Tatsuhito
福島 達人
Title: COLD ROLLER AND COLD ROLLING METHOD
Abstract:
It is possible to roll hard-to-roll materials such as silicon steel sheets and stainless steel sheets without cracking the steel sheet edges or fracturing the steel sheet, even during slow rolling, by using a circulating-lubricant tandem cold roller which supplies coolant comprising a rolling oil and cooling water to each stand and continuously rolls a steel sheet, wherein edge heaters for heating both edges of the steel sheet to a temperature of at least 60°C on the roll bite entry side of the steel sheet are provided on the upstream side of the first stand of the cold roller, and equipment for spraying the surfaces of both edges of the steel sheet with a coolant having a higher concentration than the coolant supplied to the first stand is provided between the edge heater and the first stand.