Processing technology of copper-bottom silver-tungsten coating contact and copper-bottom silver-tungsten coating contact

The invention discloses a processing technology of a copper-bottom silver-tungsten coating contact and the copper-bottom silver-tungsten coating contact, and the processing technology of the copper-bottom silver-tungsten coating contact comprises the following steps: carrying out sand blasting treatment on a contact copper core to obtain a primary treatment copper core; the primary treatment copper core is heated to 240-600 DEG C, and a secondary treatment copper core is obtained after annealing and cooling; silver-tungsten alloy powder is sprayed to the surface of the secondary treated copper core through a supersonic speed cold spraying method to form a silver-tungsten coating, a primary finished product is obtained, the silver-tungsten alloy coating is formed on the surface of the copper core through sand blasting treatment, high-temperature annealing and supersonic speed cold spraying, the silver-tungsten alloy powder is combined with the treated surface of the contact copper core more tightly, and the co