Title:
REFRACTORY FOR LINING OF LADLE FOR PRODUCING HIGH CLEANNESS MOLTEN STEEL
Document Type and Number:
Japanese Patent JPH04308022
Kind Code:
A
Abstract:
PURPOSE: To manufacture a refractory for the linking of a ladle for producing a high cleanness Si deoxidizing steel having ≤0.002% sol.Al and requiring good wire drawability, fatigue strength or machinability.
CONSTITUTION: In the refractory for lining of the ladle for producing the Si deoxidized steel having ≤0.002% sol.Al, (1) Al2O3 content in the part being in contact with a molten steel is made to ≤8wt.% (2) Al2O3 content in the refractory being in contact with the molten steel except bottom part in the ladle is made to ≤4wt.% and (3) Al2O3 content in the slag line part of the refractory for lining of the ladle is made to ≤2wt.%.
Inventors:
YAMAGUCHI KOICHI
NAKAMURA YUKIO
TAKAHASHI HIROMI
FUJII KAZUHIKO
NAKAMURA YUKIO
TAKAHASHI HIROMI
FUJII KAZUHIKO
Application Number:
JP9618491A
Publication Date:
October 30, 1992
Filing Date:
April 03, 1991
Export Citation:
Assignee:
NIPPON STEEL CORP
KUROSAKI REFRACTORIES CO
KUROSAKI REFRACTORIES CO
International Classes:
C21C7/00; C04B35/16; (IPC1-7): C21C7/00
Attorney, Agent or Firm:
Yu Shiina (1 person outside)