Protected metal article and method of making

Details Protected metal article and method of making Protected metal article and method of making

B - Operations, Transporting

32

B

154/126, 61/36,

B32B 11/08 (2006.01) B32B 15/14 (2006.01) C23C 2/26 (2006.01) E01F 5/00 (2006.01) E03F 3/00 (2006.01)

Patent

CA 1266223

ABSTRACT A culvert having a corrosion resistant composite coating and amethod of producing the corrosion resistant composite coating. The coating method is for use in a conventional hot dip coating line of the type wherein a steel strip, having been appropriately pretreated so as to be at or above the coating temperature and have its surface free of oxides, is caused to pass through a bath of molten coating metal. A fibrous aramid paper is bonded to the surface of the steel strip by pressing the fibers into the molten coating layer immediately after the steel strip exits the coating bath. The steel strip may be fabricated into construction products such as culvert which may be further protected with bituminous type coatings.

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