Method for degreasing a cold rolled metallic band
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United States of America Patent
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Jun 20, 1989
Issued Date -
N/A
app pub date -
May 8, 1987
filing date -
Apr 5, 1984
priority date (Note) -
Expired
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Abstract
A method of degreasing a cold rolled metallic band, through the chemical effect of an atmosphere of a determined composition, according to which the heating and degreasing actions are separated, wherein the heating is carried out in an enclosure provided with means for applying heat by radiation, and the degreasing is obtained by the chemical effect of said atmosphere in the heating enclosure, said method being characterized in that said atmosphere is made of a mixture of nitrogen and hydrogen enriched with steam injected in the degreasing section of said enclosure.
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