Silver cadmium oxide has excellent resistance to fusion welding and can reach high life times on switches and relays
A silver-based alloy containing cadmium oxide. Silver and cadmium oxide are not mutually soluble.There are AgCdO5, AgCdO8, AgCdO10 and AgCdO15, etc.It has high conductivity, good resistance to electric wear and fusion welding, low and stable contact resistance, and arc extinguishing.Alloys can be made by oxidizing and pulverizing to obtain microfining and uniform distribution of cadmium oxide.Used as medium and high power electric contact material, used as ignition switch contacts for magnetic starter, high power relay, electric welding machine, aviation electrical contacts.
Silver - nickel alloy has excellent conductivity and resistance to weldability, and can be used under low contact pressure.Compared with silver-copper alloy, silver-nickel has lower and more stable contact resistance.The resistance to arc burning increased with the increase of nickel content, but the contact resistance also increased.The silver-Nickel alloy is manufactured by advanced powder sintering and extrusion process.The alloy has high density and uniform structure. The second group of elements in the silver base becomes fibrous. The direction of fiber arrangement is perpendicular to the surface of the electric contact, which greatly improves the physical and mechanical properties of the material and the electrical properties such as resistance to arc burning.Some special properties can be obtained by adding some elements to silver nickel, which is suitable for some special occasions.
Silver cadmium oxide is a contact material widely used in low-voltage electrical appliances. Due to the unique properties of CdO, it has a strong cooling effect on the arc. In the process of use, it has excellent arc burning resistance, resistance to welding, and low contact resistance from beginning to end, so it has been called "universal contact material".The increase of cadmium oxide content can improve the resistance to welding, but increase the contact resistance and temperature rise, and reduce the plasticity of the material.Our silver cadmium oxide adopts a unique alloying and oxidation process, CdO particles are evenly distributed, particles are between 0.8-2.5um, excellent processing and electrical properties.
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