Studies on process and properties of electroless composite plating of Ni-P-SiO_2

The composite plating was carried out in basic liquid of electroless nickel plating by adding SiO2 particles.Process conditions of the electroless composite plating of Ni-P-SiO2 were investigated through experiments and related properties of the plating were measured,Process parameters of the electroless composite plating of Ni-PSiO2·Has been determined preliminarily,which were about pH of 4.6 and temperature of 90 ±1℃.Results of the property testing showed that the plating obtained by adding an amount of SiO2 particles to formula has obviously improved at the properties of wear resistance,corrosion resistance and so on,was relative to electroless composite plating of Ni-P.