AgWCC contacts are prepared by powder solid sintering method with high silver content, low hardness and low contact resistance. The addition of the third phase graphite improves the welding resistance and lubricity of the materials. It is generally used as static contact material and applied in pairs with other materials.
The addable copper layer can form AgWCC/Cu contact with, and the cost can be saved by 15%-30% without affecting the service performance of the product.
（一）Structure and application