The stainless steel, the high corrosion-resistant metal part which consists of the titanium or titanium alloy

摘要

Topic The machine part which possesses the metal coat which assures the corrosion-resistant improvement of the corrosion-resistant metal is offered.SolutionsThe stainless steel, to the backing material surface of the machine part which consists of the titanium or titanium alloy, the powder body which possesses the hardness above equality to the aforementioned backing material is injected above jet velocity 50m/sec or above injection pressure 0.29MPa, fine crystal formation of grain size of 1 millimicrons or less is formed on the aforementioned backing material surface, surface hardness is designated as HV250 - HV600. To the aforementioned backing material surface where fine crystal formation was formed, injecting the injection powder body which mixes the powder body of the titanium or titanium alloy and the powder body of the precious metal above jet velocity 80m/sec, or above injection pressure 0.29MPa the aforementioned precious metal and/or the oxide of the precious metal it makes the coat of the titanium oxide which supports on the surface of the aforementioned backing material, forms the high corrosion-resistant metal part. Choice figure Drawing 2