Apparatus and method for sequential removal of oxides from steel
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United States of America Patent
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Jun 18, 2002
Issued Date -
N/A
app pub date -
Jun 1, 2000
filing date -
Aug 31, 1998
priority date (Note) -
Expired
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Abstract
Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner. In a preferred version, the gas is passed through at least two reducing zones designed to maintain a higher concentration of reducing gas in at least one of them than would be the case in a single reducing zone. The oxide-bearing surface is heated at the beginning of the process.
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