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tri-metal electrical contact
AgCdO Features:
(1)AgCdO is a kind of most important contact material among silver metal-oxide materials, and it is widely used for low-voltage devices. (2)When the temperature is higher than 900oC, CdO is sublimated and the contact surface is cooled down in order to reduce and even extinguish the arc energy. This method can increase the resistance against welding. (3)Contact materials produced by powder sintering-extruding methods have higherdensity and low resistance rate. (4)It also has higher welding resistance and uniform arc erosion.
Material | Composition | Density g/cm3 | Resistivity μΩ.cm | Hardness HV(MPa) | |
Ag | CdO | ||||
AgCdO10 | 90 | 10 | >10.05 | <2.25 | >750 |
AgCdO12 | 88 | 12 | >10.0 | <2.3 | >800 |
AgCdO13 | 87 | 13 | >9.95 | <2.35 | >800 |
AgCdO15 | 85 | 15 | >9.90 | <2.4 | >800 |
tri-metal electrical contact