What are the material advantages of bimetal contact rivets

Bimetallic contact rivets have significant material advantages due to their unique bimetallic composite structure. The structure is mainly composed of a contact surface layer and a base metal layer. The contact surface layer usually uses highly conductive and corrosion-resistant silver alloy materials, such as silver-nickel alloy (AgNi), silver-cadmium alloy (AgCd) and silver-cadmium oxide alloy (AgCdO). These silver alloys show excellent conductivity and arc erosion resistance in electrical connections, ensuring the stable transmission of current at the connection point and significantly reducing material loss caused by arc discharge. In addition, the excellent oxidation resistance and corrosion resistance of silver alloys enable them to maintain stable connection performance for a long time in harsh electrical environments, thereby extending the service life of the connector.

The base metal layer uses high-strength and high-toughness materials, such as electrolytic copper or brass. These materials not only have good mechanical properties and can withstand large shear forces and pressures, but also show excellent thermal conductivity, effectively dispersing the heat generated at the connection point and improving the thermal stability of the connection. The relatively low cost of materials such as electrolytic copper also makes it possible to control the overall production cost, thereby improving the cost performance of the product.

The material advantage of bimetallic contact rivets also lies in their good processing performance and high customizability. Due to the characteristics of the bimetallic composite structure, the proportion and thickness of different metal materials can be flexibly adjusted according to the specific application requirements during the processing of the rivet. For example, in applications where higher conductivity is required, the thickness of the silver alloy layer can be increased; and in applications where higher mechanical strength is required, the base metal layer can be thickened. This customizability makes bimetallic contact rivets widely used in a variety of electrical connection scenarios, including key components such as relays, contactors, thermostats, timers and power switches.

In addition, the material advantages of bimetallic contact rivets are also reflected in their excellent weather resistance and long-term stability. The combination of highly corrosion-resistant silver alloy materials and high-strength base metal materials enables bimetallic contact rivets to maintain stable connection performance in harsh environments such as high temperature, high humidity and strong corrosion. This weather resistance and long-term stability make bimetallic contact rivets the preferred material for high-precision and high-reliability connections, especially in industries such as aerospace, automobile manufacturing, communication equipment and household appliances, where their application is particularly important.