Powder metal and/or refractory coated ferrous metal

Details Powder metal and/or refractory coated ferrous metal Powder metal and/or refractory coated ferrous metal

B - Operations, Transporting

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B05D 3/02 (2006.01) B05D 7/16 (2006.01) C09D 5/10 (2006.01) C23C 10/30 (2006.01) C23C 24/08 (2006.01)

Patent

CA 1238825

"POWDER METAL AND/OR REFRACTORY COATED FERROUS METALS" ABSTRACT Coatings of a powdered protective metallic mate- rial or refractory material and mixtures thereof are formed on a ferrous metal strip as a wet film dispersion in a resin binder composition of a synthetic organic resin and a volatile organic solvent compatible with said resin, and the coated strip is heated to effect curing said resin binder and forming a flexible non-tacky dry film. The metal strip having the cured dry film con- taining powdered protective metallic material can be subjected to varying heat treatments to provide a wide range of protective coatings having improved surface properties, including iron-protective metal diffusion alloy coatings, such as iron-aluminum diffusion alloy coatings having a surface concentration of aluminum be- tween about 8 and about 10 wt. percent aluminum, which have improved high temperature oxidation resistance after being severely strained during fabrication at room temperature.

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