B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/113, 117/116
B05D 7/14 (2006.01) B05D 3/02 (2006.01) B05D 3/10 (2006.01) B05D 5/08 (2006.01) B21C 9/00 (2006.01) C10M 107/28 (2006.01) C10M 173/02 (2006.01) C23C 22/78 (2006.01)
Patent
CA 2035610
ABSTRACT OF THE DISCLOSURE Zinc or zinc alloy plated steel sheet ready for deep drawing coated with 1-5 gm/m2 of a dry, tack free continuous thermoplastic acrylic coating. The coating is formed by inductively heating the sheet to a temperature of about 149-246 °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 aprotective 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. 11
Gosselin Cynthia A.
Myers Frederick A.
Robbins Douglas J.
Ak Steel Corporation
Riches Mckenzie & Herbert Llp
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