Title:
CONTINUOUS CASTING METHOD FOR STEEL AND REDUCTION ROLL FOR CONTINUOUS CASTING
Document Type and Number:
WIPO Patent Application WO/2019/172302
Kind Code:
A1
Abstract:
A continuous casting method of the present invention is a method for continuous casting of steel whereby a slab at a position where the central solid phase rate of the slab is not less than 0.8 and including after complete solidification is subjected to reduction by means of a reduction roll. The roll outer peripheral shape in a cross section including a roll rotational axis has a convex shape extending outward in a region including a width direction center position of the slab. The convex shape is a shape that does not have angular 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. With respect to a reduction roll radius at both ends of the convex shape defining range, a reduction roll radius at the width direction center position is greater by 0.005 × t or more.
Inventors:
IZAWA KENICHIRO (JP)
TAGUCHI KENJI (JP)
NISHIOKA RYO (JP)
TAGUCHI KENJI (JP)
NISHIOKA RYO (JP)
Application Number:
PCT/JP2019/008806
Publication Date:
September 12, 2019
Filing Date:
March 06, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B22D11/128; B22D11/20
Foreign References:
| JP2004058129A | 2004-02-26 | |||
| JPH0256982B2 | 1990-12-03 | |||
| JP2000107844A | 2000-04-18 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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