Surface layer forming a cylinder barrel surface, a spraying...

Details Surface layer forming a cylinder barrel surface, a spraying... Surface layer forming a cylinder barrel surface, a spraying...

F - Mech Eng,Light,Heat,Weapons

02

F

F02F 1/00 (2006.01) C22C 1/05 (2006.01) C23C 4/06 (2006.01) C23C 4/08 (2006.01) C23C 4/16 (2006.01) F02F 1/24 (2006.01)

Patent

CA 2347980

A surface layer for forming a cylinder barrel wall of a combustion engine block is proposed. The surface layer has separate phases of components that are separated from the phase of the remaining materials. The surface layer is produced by plasma spraying an iron containing spraying powder, incorporating all components of the layer to be produced. Such a surface layer may be applied easily and shows a significantly improved behavior regarding the machining thereof, without negatively influencing other important characteristics of the layer material, like wear resistance and coefficient of friction vis-a-vis the material of the piston rings. Preferred components of the spraying powder are, besides Fe, Cr, MN, S and C. Moreover, the spraying powder can contain As, Te, Se, Sb and/or Bi.

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