Title:
SULFUR ADDITIVE FOR MOLTEN STEEL, AND METHOD FOR MANUFACTURING SULFUR-ADDED STEEL
Document Type and Number:
WIPO Patent Application WO/2018/087953
Kind Code:
A1
Abstract:
Through the present invention, when a sulfur additive is added to molten steel, the yield of sulfur in the molten steel is stabilized, and nozzle blockage due to impurities during continuous casting is prevented. Through the present invention, an Al-deoxidized sulfur-added steel including 0.012-0.100% by mass of S is produced using a sulfur additive used in molten steel characterized by including at least 85% by mass of pyrite particles having a particle diameter of 5.0-37.5 mm with respect to the overall mass% of the sulfur additive.
Inventors:
HASEGAWA HAJIME (JP)
KUDO SUSUMU (JP)
MATSUSHIMA MITSUHIRO (JP)
SEKIUCHI TETSURO (JP)
KUDO SUSUMU (JP)
MATSUSHIMA MITSUHIRO (JP)
SEKIUCHI TETSURO (JP)
Application Number:
PCT/JP2017/021869
Publication Date:
May 17, 2018
Filing Date:
June 13, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C22C38/00; C21C7/00; C22C38/60
Foreign References:
| JPH10102119A | 1998-04-21 | |||
| JP2014234543A | 2014-12-15 |
Other References:
See also references of EP 3540082A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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