Synthesis of nickel-diamond composite powders by electroless plating method

摘要

The invention according to the electroless nickel plating method-relates to a composite diamond powder production method, and its object is continuous and uniform and the composition required for the excellent adhesion of the abrasive coating has excellent wear resistance 40-60wt% nickel the diamond particles of nickel coated on the surface - to provide an electroless nickel plating method for establishing a diamond composite powder manufacturing technology ; configuration of the present invention are synthetic diamond particles according to the method for manufacturing the composite powder of the nickel coating, screen sensitive to the surface of the synthetic diamond particles used as a core with SnCl ₂ treatment on the surface, and PdCl ₂ and pretreatment steps to enable processing by, NiSO ₄ 6H ₂ O, Na acetate and Acetic the acid dissolves nickel sulfate salt solution which was charged with the pretreated diamond heated in the reaction vessel (reaction bath) to a predetermined temperature step in and, when it reaches the set reaction temperature Sodium hypophosphate and changes in the color of the solution by supplying a reducing agent containing Citric acid at a constant speed and through a reduction step of reacting hydrogen gas does not occur up to the point features a method such that the nickel particles coated on the surface of diamond.