Preparation method of flaky silver tungsten carbide graphite copper-clad contact material

The invention discloses a preparation method of a flaky silver-tungsten carbide graphite copper-clad contact material, which comprises the following steps of: pressing and forming silver-tungsten carbide graphite mixed powder and copper-copper oxide mixed powder consisting of copper powder and copper oxide powder according to the weight ratio of (0.65-0.8): 1; then the blank is placed in a reducing atmosphere to be reduced, primary re-pressing is carried out, and a primary re-pressed blank is obtained; and the obtained primary re-pressed blank is sequentially subjected to secondary sintering, secondary re-pressing and annealing procedures, and the flaky silver tungsten carbide graphite copper-clad contact material is obtained. According to the method, the silver saving effect can be achieved, the bonding strength of the bonding interface of the obtained contact material can be guaranteed, and the method is simple in process, low in cost and high in practicability. 本发明公开了一种片状银碳化钨石墨覆铜触头材料的制备方法，该方法是将银碳化钨石墨混合粉与由铜