Processing method of silver-tungsten composite electrical contact material

The invention provides a processing method of a silver-tungsten composite electrical contact material. The processing method comprises the following steps: S1, uniformly mixing silver powder and tungsten oxide powder in proportion to obtain silver-tungsten oxide mixed powder; s2, the silver and tungsten oxide mixed powder is placed in a reducing atmosphere to be reduced, and silver and tungsten reduced powder is obtained; s3, the silver-tungsten reduction powder is subjected to initial pressing forming and vacuum presintering, and a pressed blank is obtained; and S4, the pressed blank is subjected to infiltration treatment. Silver and tungsten oxide powder can be uniformly mixed through the ball milling process, tungsten oxide particles are more uniform and fine, through holes are formed in closed pores in an initial pressing forming blank through vacuum pre-sintering treatment on the initial pressing forming blank, gas is easily discharged during infiltration of a product, the physical bonding strength betwe