Research on Electroless Nickel Plating Process and Performance of Diamond Powder Surface for Wire Saws
The performance of diamond powder is a critical factor in enhancing the efficiency of diamond wire saws.The electroless plating method is utilized to nickel plate the surface of diamond powder for wire saw applications.Through orthogonal experiments,the influences of diamond particle size,sodium hypophosphite concentration,plating solution pH value,and plating solution temperature on the deposition rate,coating density,and corrosion resistance of the electroless nickel plating are investigated.The results indicate that for three different particle sizes of diamond powder labeled as M1/2,M6/12,and M20/30,optimal process parameters vary for coating deposition rate,coating density,and corrosion resistance when the sodium hypophosphite concentration is 25～35g/L,the pH value of the electroless plating solution is 3～11,and the electroless plating temperature is 30℃～90℃.Under the same process conditions,diamond powder of different particle sizes exhibit variations in coating uniformity and density,with larger particle sizes resulting in more uniform and dense coat-ings.The interaction among various process parameters in electroless nickel plating collectively influences coating perform-ance.Different particle sizes of diamond powder have varying weights in the impact of different factors on coating perform-ance.Therefore,the diamond powder with different particle sizes and diverse coating performance requirements should un-dergo plating with distinct process parameters.
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