Title:
CONTINUOUS WIDTH PRESSING METHOD OF HOT SLAB
Document Type and Number:
Japanese Patent JP3229542
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the slipping in a longitudinal direction and the development of flow in the edge parts of a sheet width by making a feeding pitch at longer than a component length in the longitudinal direction of a tapered part of a slab formed at the tapered part of dies, in a continuous width press.
SOLUTION: In the continuous width press for the hot slab using the dies having the parallel part and tapered part, the feeding pitch is made to longer than the component length in the longitudinal direction of the tapered part of the slab formed with the tapered part of the dies with the width press to prevent the development of the slipping. For example, plural dies having different shapes of the tapered part are prepared. In the case of pressing with the dies in the width press so that the component length in the longitudinal length of the tapered part of the slab formed with the tapered part of the die becomes shorter than the feeding pitch, the slipping is not developed. Further, the dies having mutually different tapered angles are used to a small range and a large range of the width rolling reduction rate, and the feeding pitch quantity is changed corresponding to the width rolling reduction rate in each range. Further, the parallel part is formed at the edge parts of the slab and this part is width- presses with the parallel part of the dies.
Inventors:
Michio Yamashita
Toshiki Hiruta
Shigefumi Katsura
Hiroshi Kuwako
Toshiki Hiruta
Shigefumi Katsura
Hiroshi Kuwako
Application Number:
JP6824796A
Publication Date:
November 19, 2001
Filing Date:
March 25, 1996
Export Citation:
Assignee:
Kawasaki Steel Co., Ltd.
International Classes:
B21B15/00; B21B1/02; B21J1/04; B21J13/06; B21J13/08; (IPC1-7): B21J1/04; B21B1/02; B21B15/00; B21J13/06
Domestic Patent References:
| JP4147701A | ||||
| JP62212034A | ||||
| JP4500174A |
Attorney, Agent or Firm:
Eiichi Kobayashi