Title:
鋼の連続鋳造方法及び連続鋳造用の圧下ロール
Document Type and Number:
Japanese Patent JP6973617
Kind Code:
B2
Abstract:
A continuous casting method for steel in which a slab at a position where the center solid phase rate of the slab is 0.8 or more and including after complete solidification is reduced by a reduction roll. The roll outer peripheral shape in a cross-section including a roll rotation axis convex shape overhanging outward in a region including a width-direction center position of the slab. The convex shape is a shape that does not have corner portions in a convex shape defining range with a total length of 0.80×W on both sides in the roll width direction from the width-direction center position. A reduction roll radius at the width-direction center position is greater by 0.005×t or more than a reduction roll radius at both ends of the convex shape defining range.
Inventors:
Kenichiro Izawa
Kenji Taguchi
Ryo Nishioka
Kenji Taguchi
Ryo Nishioka
Application Number:
JP2020505072A
Publication Date:
December 01, 2021
Filing Date:
March 06, 2019
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B22D11/128; B22D11/20
Domestic Patent References:
| JP2004058129A | ||||
| JP2000107844A |
Attorney, Agent or Firm:
Sumio Tanai
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi