Title:
EQUIPMENT FOR NOTCHING STEEL STRIP, METHOD FOR NOTCHING STEEL STRIP, COLD ROLLING EQUIPMENT, AND COLD ROLLING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/141616
Kind Code:
A1
Abstract:
Provided are equipment for notching a steel strip, a method for notching a steel strip, cold rolling equipment, and a cold rolling method, which enable cold rolling to be performed without causing joint fractures (weld fractures), even in the case of brittle materials/high alloy materials, such as silicon steel sheets or high tensile strength steel sheets, which have a high content of Si or Mn. This notching equipment forms notches in both widthwise edge portions of a steel strip, at the junction between the trailing edge of a preceding steel strip and the leading edge of a trailing steel strip, and is characterized by being provided with: a shearing means for forming first-stage notches by shearing both widthwise edge portions of the steel strip, including said junction; and a grinding means for forming second-stage notches by grinding, at said junction, the end faces of both widthwise edge portions of the steel strip.
Inventors:
MATSUBARA YUKIHIRO (JP)
NAGAI YUU (JP)
IWANAGA KAZUHISA (JP)
NAGAI YUU (JP)
IWANAGA KAZUHISA (JP)
Application Number:
PCT/JP2017/001844
Publication Date:
August 24, 2017
Filing Date:
January 20, 2017
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21B15/00; B21B1/22
Foreign References:
| JP2006341276A | 2006-12-21 | |||
| JP2000280093A | 2000-10-10 |
Other References:
See also references of EP 3395459A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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