Tungsten Copper Contacts

Tungsten copper-based electrical contact material since its advent in 1935 has been widely used for automatic switching and universal circuit breakers, molded case circuit breakers. Electrical contacts are the instrumentation important components of high and low voltage electrical switches,  and it is responsible for the connected and disconnected of the circuit , while responsible for the task of corresponding circuit load current.  Mutual solid solution of tungsten and copper neither nor form an intermetallic compound phase by the two organizations are uniformly mixed monomers "false alloy" (pseudo-alloy). It kept a high temperature, high hardness, low coefficient of expansion of tungsten, while maintaining high electrical conductivity and good thermal conductivity of copper plastic.

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