Method for galvanizing and galvannealing employing a bath of zinc and aluminum
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United States of America Patent
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Jan 23, 2001
Grant Date -
N/A
app pub date -
Nov 23, 1998
filing date -
Jan 29, 1998
priority date (Note) -
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Abstract
The present application discloses a method for hot-dip galvanizing and galvannealing which employs a bath of zinc and aluminum. Strips are immersed in the bath to produce substantially dross-free galvannealed and galvanized strips. The bath can have substantially the same effective aluminum concentration during galvannealing as during galvanizing, and the temperature set-point of the bath is at a temperature of about 440.degree. C. to about 450.degree. C.
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