Method and means for manufacturing a preformed metal product

Details Method and means for manufacturing a preformed metal product Method and means for manufacturing a preformed metal product

1985-02-11

1986-09-23

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

419 50, 419 69, C22B 512

Patent

active

046133640

ABSTRACT:
A method and a means for continuously producing a preformed metal product through direct reduction of a material containing ferric oxide in a shaft furnace and feeding the product manufactured in the shaft furnace via a gas lock into a hot preforming machine, the hot product obtained from the shaft furnace being kept at the temperature required for the subsequent hot preforming process, preferably at least about 550.degree. C., by means of hot, non-combustible gas consisting primarily of N.sub.2 and/or CO.sub.2 which has been heated by excess heat from the shaft furnace.

REFERENCES:
patent: 3710808 (1973-01-01), Celada et al.
patent: 4251267 (1981-02-01), Beggs et al.

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