Process for producing high cleanness extra low carbon steel

Details Process for producing high cleanness extra low carbon steel Process for producing high cleanness extra low carbon steel

1989-07-18

1991-02-19

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C21C 700

Patent

active

049941089

ABSTRACT:
A process of production of high cleanness extra low carbon steel includes steps of producing low carbon rimmed steel by means of a refining furnace, supplying a deoxidization agent to a slag in a laddle for adjusting iron concentration in slag at lower than or equal to 5%, subsequently performing vacuum degassing process with blowing oxygen to lower carbon content in the steel lower than or equal to 0.006%.

REFERENCES:
patent: 3575695 (1971-04-01), Miyashita
patent: 3925061 (1975-12-01), Carlsson
patent: 3971655 (1976-07-01), Takashima
patent: 4615511 (1986-10-01), Sherwood

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