Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1996-10-08
1998-11-03
Yee, Deborah
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148606, C21D 800
Patent
active
058302913
ABSTRACT:
A method for producing bright stainless steel whereby a hot mill band having a dull oxide-free surface is first formed. The hot mill band is cold reduced to form a full hard coil having a shiny surface. The coil is subjected to continuous annealing at a temperature of 1500.degree.-1950.degree. F. in an oxygen-containing atmosphere sufficient to form a protective FeCr.sub.2 O.sub.3 scale. The annealed coil is subjected to a mild non-etching pickling process to remove the black scale. The coil is then rolled on a temper mill having specially finished rolls to impart a surface pattern that replicates an abrasively polished surface.
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Denoi Anthony J.
McGuire Michael F.
Senzarin-Kulik Kelley L.
J&L Specialty Steel, Inc.
Yee Deborah
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