Title:
METHOD FOR PRODUCING STEEL MATERIAL, APPARATUS FOR COOLING STEEL MATERIAL, AND STEEL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/181891
Kind Code:
A1
Abstract:
The present invention provides a method for producing a steel material that is uniform in material quality in the longitudinal direction, an apparatus for cooling a steel material and a steel material. The method for producing a steel material according to the present invention is characterized in that when a hot-worked or cooled and re-heated steel material is cooled with a cooling apparatus (2) comprising a plurality of cooling units (head-section cooling headers (21a) to (21c), foot-section cooling headers (22)) arranged in the longitudinal direction of the steel material, the steel material is transported in the cooling device (2) in the longitudinal direction of the steel material for a transport distance Lo(m) that satisfies formula (1) wherein Lo is the transport distance (m) of the steel material, m is a natural number, and Lh is the length (m) of the cooling units in the longitudinal direction of the steel material.
(m - 0.20) × Lh ≤ Lo ≤ (m + 0.20) × Lh ･･･ (1)
Inventors:
OKUSHIRO KENJI (JP)
FUKUDA HIROYUKI (JP)
KIJIMA HIDEO (JP)
YOSHIDA YOSHIKAZU (JP)
ISHIKAWA HIROSHI (JP)
NAKANO SADANORI (JP)
FUKUDA HIROYUKI (JP)
KIJIMA HIDEO (JP)
YOSHIDA YOSHIKAZU (JP)
ISHIKAWA HIROSHI (JP)
NAKANO SADANORI (JP)
Application Number:
PCT/JP2016/063603
Publication Date:
November 17, 2016
Filing Date:
May 02, 2016
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D1/00; B21B1/085; B21B45/02; C21D9/04; C22C38/00; C22C38/60
Foreign References:
| JP2003193126A | 2003-07-09 | |||
| JPH08260058A | 1996-10-08 | |||
| JPH01104721A | 1989-04-21 |
Other References:
See also references of EP 3296409A4
Attorney, Agent or Firm:
MORI Tetsuya et al. (JP)
Woods Tetsuya (JP)
Woods Tetsuya (JP)
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