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US 2012/0070585 A1Published application
Manganese based coating for wear and corrosion resistance
AssigneeCaterpillar Inc.
InventorBeth Ann Sebright
Life of this patent
Estimating the term…
Abstract
A component is disclosed. The component includes a substrate made of a ferrous metal, and a coating on a surface of the substrate. The coating includes a compound having an empirical formula FexMnyOz, where x varies from about 0 to about 2, y varies from about 1 to about 4, and z varies from about 2 to about 8.
Claims22
1-9. (canceled)
A method of coating a component comprising:
- preparing a surface of the component for coating;
- dipping the component in a coating solution;
- and
- heat curing the dipped component at high temperature to produce a coating having an empirical formula FexMnyOz, where x varies from about 0 to about 2, y varies from about 1 to about 4, and z varies from about 2 to about 8.
1 more element
19-20. (canceled)
A method of coating a component comprising:
- applying a coating composition including a solution of a permanganate, an acidic metal phosphate, and water to a surface of a ferrous metal component;
- and
- heat curing the component to form the conversion coating on the surface, the conversion coating being a mixed oxide of iron and manganese.
A method of coating a component comprising:
- applying a coating composition to a surface of a ferrous metal component, the coating composition being a solution having a relative concentration of about 4-12 gms of potassium permanganate and about 1-5 ml of aluminum dihydrogen phosphate in about 150 ml of water;
- and
- maintaining the component at a temperature higher than or equal to about 540° C. for a time of about 1-10 minutes to form a conversion coating on the surface, the conversion coating being a mixed oxide of iron and manganese.
Dependencies are inferred from the claim text.