Claims
- 1. A method for forming an adherent rough coating on a receiving surface of an article to provide a slip resistant surface, the method comprising:
providing a first metallic wire electrode and a second metallic wire electrode wherein the first metallic wire electrode is different than the second metallic wire electrode; melting the first metallic wire electrode to form a first group of metallic droplets; melting the second metallic wire electrode to form a second group of metallic droplets; forming a first metallic spray from the first group of metallic droplets; forming a second metallic spray from the second group of metallic droplets, directing the first metallic spray and the second metallic spray onto the receiving surface of the article; and commingling the first and second metallic sprays to form an adherent rough coating defining a slip resistant surface.
- 2. The method of claim 1 wherein the slip resistant surface of has a hardness of between about 40 Rc to about 65 Rc.
- 3. The method of claim 1 wherein the first metallic wire electrode is a hollow cored wire having alloying constituents that melt to form a coating with a hard surface.
- 4. The process of claim 3 with said hollow cored wire includes fill materials further including grit particles.
- 5. The process of claim 4 wherein the grit particles are present in an amount from about 25% to about 50% by volume of the total amount of fill materials.
- 6. The method of claim 3 wherein the fill materials further include a metal selected from the group consisting of aluminum and iron.
- 7. The method of claim 1 wherein the steps of forming a first metallic spray from the first group of metallic droplets and forming a second metallic spray from the second group of metallic droplets are performed essentially simultaneously in a single spray head.
- 8. The method of claim 7 wherein the first group of metallic droplets and the second group of metallic droplets are directed towards the workpiece by the flow of a gas emerging from a nozzle in the spray head.
- 9. The process of claim 1 wherein the adherent rough coating covers from about 30% to about 100% of the area of the receiving surface.
- 10. The process of claim 1 wherein the an adherent rough coating is formed to a depth of at least about 0.010 inches.
- 11. The method of claim 1 wherein the first metal wire electrode is a solid wire and the second metal wire is a cored wire.
- 12. The method of claim 1 wherein the first metal wire electrode is aluminum wire.
- 13. The method of claim 1 wherein the first metal wire electrode is aluminum wire and the second metal wire electrode is copper wire.
- 14. The method of claim 1 wherein workpiece is metal or a metal alloy.
- 15. The method of claim 1 wherein workpiece is steel, stainless steel, or aluminum.
- 16. The method of claim 1 wherein the first and second wire electrodes are melted in the same spray gun.
- 17. The method of claim 1 wherein the first and second wire electrodes are melted in adjacent spray guns.
- 18. The method of claim 1 wherein the first metal wire electrode and the second metal wire electrode are feed into an arc spray guy at an appropriate relative feed rate so that a predetermined coating composition is formed.
- 19. A method for forming an adherent rough coating on a receiving surface of an article to provide a slip resistant surface for persons walking or working thereon, the method comprising:
providing a first metallic wire electrode and a second metallic wire electrode wherein the first metallic wire electrode is different than the second metallic wire electrode; melting the first metallic wire electrode to form a first group of metallic droplets; forming a first metallic spray from the first group of metallic droplets; directing the first metallic spray onto the receiving surface of the article to form a first coating on the substrate, melting the second metallic wire electrode to form a second group of metallic droplets; forming a second metallic spray from the second group of metallic droplets; directing the second metallic spray onto the first coating to form a adherent multi-layered rough coating defining a slip resistant surface for persons walking or working thereon.
- 20. The method of claim 19 wherein the first metal wire electrode is a solid wire and the second metal wire is a cored wire.
- 21. The method of claim 19 wherein the first metallic wire electrode is melted and formed into a spray in a first spray gun and the second metallic wire electrode is melted and formed into a spray in a second spray gun.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional Application Serial No. 60/363,678, filed Mar. 12, 2002.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60363678 |
Mar 2002 |
US |