Title:
圧延機、並びに圧延方法及びワークロールの運用方法
Document Type and Number:
Japanese Patent JP7313768
Kind Code:
B2
Abstract:
This four- to six-stage rolling mill comprises two work rolls vertically disposed with a plate passing line therebetween, the two work rolls each being provided with at least one backup roll, the rolling mill being characterized in that: the two work rolls have the same axial length and the same shapes of roll necks and are thus replaceable with each other; the two work rolls are configured so that one work roll, that is a first work roll, is not rotationally driven and the other work roll, that is a second work roll, is rotationally driven; and the ratio (L1/Dw1) of the trunk length L1 and the diameter Dw1 of the first work roll satisfies 4.0≤L1/Dw1≤7.0, and the ratio (L2/Dw2) of the trunk length L2 and the diameter Dw2 of the second work roll satisfies 4.0≤L2/Dw2≤7.0.
Inventors:
Tanehiro Yoshikawa
Masahiro Yanagi
Takahiro Toriumi
Hirokazu Watari
Masahiro Yanagi
Takahiro Toriumi
Hirokazu Watari
Application Number:
JP2019096637A
Publication Date:
July 25, 2023
Filing Date:
May 23, 2019
Export Citation:
Assignee:
Steel Plantech Co., Ltd.
International Classes:
B21B1/22; B21B13/14; B21B31/20; B21B35/00
Domestic Patent References:
| JP6031308A | ||||
| JP61193711A | ||||
| JP10085805A | ||||
| JP2001276904A | ||||
| JP6285510A | ||||
| JP2003010905A | ||||
| JP60187408A | ||||
| JP61020602A |
Foreign References:
| CN1426330A |
Attorney, Agent or Firm:
Patent Attorney Corporation Isshiki International Patent Office