Composition for controlling spangle size, a coated steel product, and a coating method
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United States of America Patent
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May 9, 2006
Issued Date -
N/A
app pub date -
Jan 7, 2004
filing date -
Oct 7, 1999
priority date (Note) -
Expired
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Abstract
A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to control the spangle facet size of the coated product, improve tension bend rust stain performance, and improve coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, andaluminides such as titanium aluminide. The method produces a coated steel product does not require temper rolling for painting.
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