| 摘要 |
PURPOSE:To form a particle-dispersed surface coating layer having an excellent surface friction and wear characteristic to a member to be subjected to surface coating by irradiating high-density energy to the surface of said member to heat and melt the surface and projecting and injecting fine hard particles into the molten pool formed in such a manner. CONSTITUTION:The fine hard particles 4 are projected and injected by a thermal spraying method such as plasma spraying of a high particle speed of thermal spraying into the molten pool 3 formed by irradiating the high-density energy 2 such as laser beam, TIG arc, plasma arc or electron beam to the surface of the member 1 to be subjected to surface coating to heat and melt said surface. The member 1 is moved toward an arrow A direction simultaneously with the above-mentioned operation to cool the pool 3, by which the fine hard particles 5b are dispersed uniformly into the material 5a constituting the base structure with good bondability. The particle-dispersed surface coating layer 5 is thus formed. |
