Patent ID: 7291252
Filing Date: 2007-11-06
Classification: C25D,Y10T

Abstract:
1. Method of making an appliance cabinet preform comprising (a) providing a steel strip, said steel strip having a chromium coating and being substantially free of phosphate, (b) rinsing said steel strip in an alkaline solution, thereby stripping said steel of chromium oxide, (c) forming a portion of said steel strip into a desired three-dimensional shape which is at least part of an incipient appliance cabinet preform, (d) immersing said three-dimensional shape as a cathode into an electrolytic cell containing an aqueous coating bath comprising a cationic polymer (e) holding said three-dimensional shape in said electrolytic cell under coating conditions for a residence time sufficient to form an adherent coating on said three-dimensional shape, (f) removing said three-dimensional shape from said bath, and (g) baking said three-dimensional shape including said adherent coating.