Coating processes – Solid particles or fibers applied – Uniting particles to form continuous coating with...
Patent
1974-01-24
1976-06-08
Husack, Ralph
Coating processes
Solid particles or fibers applied
Uniting particles to form continuous coating with...
29194, 29195, 427226, 427229, 427376, 427419, C23C 304, C23D 500
Patent
active
039624900
ABSTRACT:
A process and product are disclosed relating to the preparation of a metallic substrate of a workpiece for a subsequent deposition of a ceramic coating, such as porcelain enamel, in which the metal of the substrate is one that is not sufficiently electrochemically active to be coated by electrophoresis, for example, stainless steel or those alloys containing principally nickel and/or chromium. In one form, the metallic substrate is first covered with an oxide, and preferably a thermally decomposable compound, of a transition metal selected from Groups IIIB through Group IIB of the Periodic Table of The Elements. The workpiece is then heated to alloy the transition metal with the substrate of the workpiece, after which a ceramic coat may be applied. When the transition metal is present as a thermally decomposable compound, the compound must decompose prior to reaching an alloying temperature.
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Ferro Corporation
Husack Ralph
Simmons Milton L.
Taylor Wesley B.
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