RECYCLING METHOD OF THERMAL SPRAY POWDER AND RECYCLED THERMAL SPRAY POWDER

摘要

PROBLEM TO BE SOLVED: To provide a method for recycling a powder recovered from thermal spraying into a thermal spray powder capable of forming a sprayed coating excellent in adhesion, oxidation resistance and durability, and the recycled thermal spray powder.;SOLUTION: The method for recycling the thermal spray powder comprises: a dispersing step of adding a surfactant and water to the powder recovered from thermal spraying and stirring the same, thereby dispersing the recovered powder in water; a separation step of removing a small-sized powder from the recovered powder dispersed in water so that a grain size corresponding to 10% cumulative grain size of the recovered powder in water becomes equal to or larger than a grain size corresponding to 10% cumulative grain size of the thermal spray powder before thermal spraying; and a drying step of drying the recovered powder after the separation step.;COPYRIGHT: (C)2011,JPO&INPIT