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US 6,641,917 B2Granted
Spray powder and method for its production
AssigneeFujimi Incorporated
InventorsTsuyoshi Itsukaichi, Satoru Osawa
Life of this patent
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Abstract
A spray powder to be used for forming a coating, which comprises from 80 to 97 wt %, based on the total weight, of a cermet powder and from 3 to 20 wt %, based on the total weight, of a metal powder, wherein the metal powder comprises Cr and Ni in a total amount of at least 90 wt %, based on the total weight of the metal powder, and the content of Cr is from 0 to 55 wt %, based on the total weight of the metal powder.
Claims11
A spray powder for use in forming a coating, which comprises:
- from 80 to 97 wt %, based on the total weight, of a cermet powder and from 3 to 20 wt %, based on the total weight, of a metal powder, wherein the metal powder comprises Cr and Ni in a total amount of at least 90 wt %, based on the total weight of the metal powder, and the content of Cr ranges from 0 to 55 wt %, based on the total weight of the metal powder.
A method for producing a spray powder for use in forming a coating, which comprises:
- adding and mixing a cermet powder prepared by an agglomeration-sintering method, a sintering-crushing method or a fusion-crushing method, and a metal powder comprising Cr and Ni in a total amount of at least 90 wt %, based on the total weight of the metal powder, and the content of Cr ranging from 0 to 55 wt %, based on the total weight of the metal powder, so that their contents range from 80 to 97 wt % and from 3 to 20 wt %, respectively, based on the total weight of the spray powders.
Dependencies are inferred from the claim text.