Method and means for manufacturing a preformed metal product
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United States of America Patent
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Sep 23, 1986
Grant Date -
N/A
app pub date -
Feb 11, 1985
filing date -
Aug 2, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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