Armco Inc.

Armco Steel Company, L.p.

Douglas J Robbins

Alan F Gibson

Frederick Alan Myers

Timothy R Roberts

Cynthia A Gosselin

David M Smith

Zinc or zinc alloy plated steel sheet ready for deep drawing coated with 1-5 gm/m.sup.2 of a dry, tack free continuous thermoplastic acrylic coating. The coating is formed by inductively heating the sheet to a temperature of about 149.degree.-246.degree. C. for no more than 10 seconds after being roll coated with a continuous liquid film of an aqueous solution including an acrylic polymer. The acrylic coating forms a protective film that is impervious to moisture, oil, and dirt, is able to be welded and adhesively bonded and possesses sufficient toughness and lubricity to allow deformation of the sheet without additional external lubricant. A deep drawn article formed from the sheet has enhanced painting characteristics after the acrylic coating is removed and the article is coated with a phosphate coating.

Thermoplastic acrylic coated steel sheet

Producing one-side zinc electroplated strip having enhanced phosphating characteristics. Prior to electroplating, the non-electroplated side of the steel strip is cathodically pickled. Cathodic pickling minimizes staining and etching to the non-electroplated strip surface by the zinc electrolyte during electroplating of the opposite strip surface.

Apparatus for producing one-side electroplated steel strip with enhanced

Method and apparatus for producing one-side electroplated steel strip

Growing community of inventors

Hamilton, OH, United States of America

Douglas J Robbins