Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1992-12-18
1994-04-19
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75510, 75512, C21C 702
Patent
active
053042310
ABSTRACT:
Disclosed is a method of refining of a high purity steel capable of effectively lowering impurities in molten steel into respective ultra-low ranges. In secondary refining for molten steel after a molten iron prerefining process and a converting process, a reducing agent and a flux are added on the bath surface within a ladle containing the molten steel decarburized in a converter so that the composition of slag on the bath surface is adjusted in such a manner that the total concentration of FeO and MnO becomes 5 wt % or less, and subsequently, impurities in the molten steel are effectively lowered into respective ultra-low ranges using a RH vacuum degassing unit.
REFERENCES:
patent: 4944798 (1990-07-01), Ototani
Fujii Tetsuya
Kato Yoshiei
Kirihara Tadasu
Omiya Shigeru
Suito Masahito
Kawasaki Steel Corporation
Miller Austin R.
Rosenberg Peter D.
LandOfFree
Method of refining of high purity steel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of refining of high purity steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of refining of high purity steel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-17429