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Hot Rolling Facility And Hot Rolling Method

Abstract: Provided is a hot rolling facility for hot-rolling a steel material containing Cu, the hot rolling facility comprising: a heating furnace for heating the steel material after casting to a predetermined temperature; a rough rolling device including a plurality of rolling mills for performing rough rolling of the steel material heated in the heating furnace; a finish rolling device for performing finish rolling of the steel material subjected to rough rolling by the rough rolling device; and a removal device for removing a target area that includes a crack caused by a Cu-enriched layer that is present on the top surface side of the steel material during the rough rolling or after the rough rolling and that has a higher concentration of Cu components than in a base material of the steel material, the removal device being provided on the downstream side, in a conveying direction of the steel material, of the rolling mill positioned on the most upstream side among the plurality of rolling mills of the rough rolling device and on the upstream side of the finish rolling device.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
24 September 2025
Publication Number
41/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. NIITANI, Hiroshi
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
2. AOKI, Toshikazu
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071
3. KIHARA, Yuki
c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

# Name Date
1 202517091445-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [24-09-2025(online)].pdf 2025-09-24
2 202517091445-STATEMENT OF UNDERTAKING (FORM 3) [24-09-2025(online)].pdf 2025-09-24
3 202517091445-REQUEST FOR EXAMINATION (FORM-18) [24-09-2025(online)].pdf 2025-09-24
4 202517091445-PROOF OF RIGHT [24-09-2025(online)].pdf 2025-09-24
5 202517091445-PRIORITY DOCUMENTS [24-09-2025(online)].pdf 2025-09-24
6 202517091445-POWER OF AUTHORITY [24-09-2025(online)].pdf 2025-09-24
7 202517091445-FORM 18 [24-09-2025(online)].pdf 2025-09-24
8 202517091445-FORM 1 [24-09-2025(online)].pdf 2025-09-24
9 202517091445-DRAWINGS [24-09-2025(online)].pdf 2025-09-24
10 202517091445-DECLARATION OF INVENTORSHIP (FORM 5) [24-09-2025(online)].pdf 2025-09-24
11 202517091445-COMPLETE SPECIFICATION [24-09-2025(online)].pdf 2025-09-24
12 202517091445-FORM 3 [29-10-2025(online)].pdf 2025-10-29