Device for preparing precipitation strengthened type high-strength and high-conductivity CuZr alloy

Abstract

The invention provides a device for preparing a precipitation strengthened type high-strength and high-conductivity CuZr alloy. The device comprises a lower-temperature rolling box body, a liquid nitrogen tank and a temperature sensor. An upper roller and a lower roller are arranged in the low-temperature rolling box body in a matched manner. A material inlet and a material outlet which are matched with the upper roller and the lower roller respectively are formed in the side wall of the low-temperature rolling box body. The material inlet and the material outlet are each provided with a sliding baffle. The material inlet and the material outlet can be opened and closed by sliding the sliding baffles. A plurality of spray nozzles are arranged on the inner wall of the low-temperature rolling box body and are communicated with the liquid nitrogen tank through a pipeline. A peristaltic pump is arranged on the pipeline between the spray nozzles and the liquid nitrogen tank. The temperature sensor is arranged on the side wall of the low-temperature rolling box body. The precipitation strengthened type high-strength and high-conductivity CuZr alloy prepared through the device has an excellent mechanical property and excellent conductivity.

Description

technical field [0001] The invention relates to material technology, in particular to a device for preparing a precipitation-strengthened high-strength and high-conductivity CuZr alloy. Background technique [0002] Due to their high strength and good electrical conductivity, copper and copper alloys are widely used in rail transit contact wires, integrated circuit lead frames, resistance welding electrodes and small electronic equipment. Solid solution atoms, crystal defects, grain size and other factors affect the conductivity of copper alloys. Among them, solid solution atoms cause large lattice distortions in the copper matrix, which greatly reduces the conductivity of copper alloys. Therefore, compared with solid-solution strengthened copper alloys, precipitation-strengthened copper alloys have become a hot spot for preparing high-strength and high-conductivity copper alloys. [0003] Strength and conductivity are a pair of contradictory properties, and improving mecha...

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Problems solved by technology

[0004] The object of the present invention is to propose a kind of equipment for preparing precipitation-strengthened high-strength and high-conductivity CuZr alloy for the above-mentioned existing CuZr alloy strength difficult to meet the problem of growing product demand. Excellent mechanical properties and electrical conductivity

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