Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1996-10-08
1999-11-09
Thibodeau, Paul
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428626, 428414, 428416, 428418, 428500, 427195, 427203, 427 35, 427384, 427386, 4273881, 427410, B21D 3900, B35B 2738, B05D 500, B05D 136
Patent
active
059810866
ABSTRACT:
High-tensile steel, particularly automotive coil springs formed of high-tensile steel, are coated first with an epoxy coating powder containing high levels of zinc and then with a poly(ethylene/acrylic acid copolymer) coating powder. Both coatings are applied and fused or fused and cured at temperatures of 325.degree. F. or below so as not to affect the metallurgic properties of the steel. The dual-coating protects the steel from pitting and corrosion.
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General Motors Published Test, Chip Resistance of Coating, GM 9508P, Jul. 1991.
General Motors Published Test, Scab Corrosion Creepback of Elpo Paint Systems on Metal Substrates, GM 9511P, Oct. 1986.
General Motors Published Test, CASS--Copper Accelerated Acetic Acid Salt Spray Test, GM 4476P, Nov. 1988.
Morton International Inc.
Nacker Wayne E.
Rickman Holly C.
Thibodeau Paul
White Gerald K.
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