Special copper alloy and manufacturing method thereof

Abstract

The invention relates to a novel high-strength high-conductivity copper-based alloy and preparation method thereof, which belongs to copper-based electrical material. The chemical compositions of the weight percentage of the copper-based electrical alloy are 0.01-5.0Eu, 0.01-5.0Gd, 0.01-5.0Er, 0.01-3.0C and Cu which holds the weight percentage. The process for preparing the copper-based alloy is to allocate Cu, Eu, Gd, and Er (mixed rare earth element) according to the composition proportion of the alloy design, melt the mixture in the vacuum medium-frequency and fuse the mixture in the powder-making device, fast solidify the inert gas to atomize, and then CuEuGdEr alloy powder is produced. The powder is mixed with C powder by mechanical alloying, and then the mixed powder is processed by the processing technique of isostatic cool pressing formation, sinter, extrusion and the like to achieve the production of pipe, rod or sheet. The alloy material is characterized by good heat and electrical conductivity, large strength of room temperature, high resoftening temperature and high conductive rate, which can be used as conducting bar, resistance welding electrode, blasting fuse frame, conducting bridge, commutator and the like in the industries of electric power, electrotechnology, electronics and electromechannics.

Description

Technical field [0001] The invention relates to a copper-based electrical alloy material, in particular to a novel high-strength and high-conductivity copper-based alloy and a preparation method thereof. Background technique [0002] High-strength and high-conductivity copper alloy refers to an alloy that has excellent electrical and thermal conductivity while taking into account high strength and excellent high-temperature performance. Its main requirement is to make the alloy strong without losing electrical conductivity and thermal conductivity. improve. Copper-based alloy materials are mainly used as resistance welding electrodes, lead frames, conductive bridges and other materials in automobiles, motorcycles, electrical engineering, electronics, electric power and other industries, and can also be used to replace toxic beryllium bronze, phosphor bronze, etc. to make relay supports and High and low voltage plug-in components, etc. At present, such alloys at home and abroad ar...

AI Technical Summary

Problems solved by technology

Although these methods have improved the performance and scope of use of copper-based alloy materials, there is almost no significant improvement in thermal properties such as electrical conductivity, high-temperature strength, high-temperature hardness, and softening temperature.

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