Title:
STEEL SHEET PRODUCTION METHOD, TRIMMING DEVICE, AND PRODUCTION APPARATUS, ROLLED STEEL SHEET, COILED MATERIAL, AND BLANK MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/170882
Kind Code:
A1
Abstract:
The present invention achieves further improvement in frequency of edge chipping and thereby increases yield in steel sheet production. In the present invention, lubricant oil is directly applied on a steel sheet (1) prior to trimming. As a result, the frequency of edge chipping of a trimmer is reduced, by eliminating shortage of supply of oil and reducing friction. Specifically, this method is for producing a steel sheet (1) and comprises a process for cutting edges of the steel sheet (1) by means of rotary blades (2). In the process for cutting the steel sheet (1) with the rotary blades (2), lubricant oil is adhered to, in the surfaces (1a, 1b) of the steel sheet (1) before being cut, locations to be cut by the rotary blades (2).
Inventors:
HIRANO YUICHIRO (JP)
IKEDA GOSUKE (JP)
YAMAMOTO KIYOSHI (JP)
TANAKA MIKIO (JP)
ONO YOSHIHIKO (JP)
IKEDA GOSUKE (JP)
YAMAMOTO KIYOSHI (JP)
TANAKA MIKIO (JP)
ONO YOSHIHIKO (JP)
Application Number:
PCT/JP2022/010686
Publication Date:
September 14, 2023
Filing Date:
March 10, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23D19/06; B23Q11/10
Domestic Patent References:
| WO2021153037A1 | 2021-08-05 |
Foreign References:
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Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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