Process for the production of a sprayed surface of defined...

Details Process for the production of a sprayed surface of defined... Process for the production of a sprayed surface of defined...

C - Chemistry, Metallurgy

23

C

117/58

C23C 4/10 (2006.01) B65H 5/06 (2006.01) C23C 4/06 (2006.01)

Patent

CA 1315613

ABSTRACT A process for the production of a sprayed surface of defined roughness on a workpiece is to be improved and a surface layer with a clearly defined degree of roughness is to be provided, by a comparatively simple procedure. For that purpose, a powder material is sprayed on the surface, the material comprising a mixture of a matrix on a Ni, Co and/or Fe-base alloy, and hard materials, as well as a grain-size distribution in respect of the hard materials with a maximum proportion between 25 and 150 µm, wherein the sprayed unsintered layer has a surface roughness in the range of Ra 10 to 100 µm of a defined roughness of Ra.x ? 20 µm, and x is a number of from 10 to 100 µm. The invention also embraces use of the process for the production of the surface of transport rollers or gripper fingers for paper or cardboard manufacture.

563978

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