Composition for controlling spangle size, a coated steel...

Details Composition for controlling spangle size, a coated steel... Composition for controlling spangle size, a coated steel...

2006-05-09

2006-05-09

Koehler, Robert R. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S659000, C428S411100, C428S939000

Reexamination Certificate

active

07041386

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.

REFERENCES:
patent: 3343930 (1967-09-01), Borzillo et al.
patent: 5049202 (1991-09-01), Willis et al.
patent: 5789089 (1998-08-01), Maki et al.
patent: H2-138451 (1990-05-01), None

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