Coil coating of sheet metal to provide localized corrosion prote

Details Coil coating of sheet metal to provide localized corrosion prote Coil coating of sheet metal to provide localized corrosion prote

1992-06-29

1993-12-21

Owens, Terry J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

29414, 118211, 118221, 427210, 427211, 427286, 427287, 470 34, B21G 326, B05D 128

Patent

active

052711447

ABSTRACT:
A method of providing localized corrosion protection to products manufactured of sheet metal wherein coils of sheet metal are passed through a coil coating line wherein one or more stripes of corrosion resistant material are applied to selected areas along both the upper and lower surfaces of the metal prior to the metal being cut, punched, or bent to form a product having predetermined portions of its surface area coated. In one embodiment, a selected corrosion resistant coating is applied to galvanized sheet metal prior to the metal being punched and formed into sheet metal fasteners having coated heads but uncoated shanks.

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