Preparation method of material for high-strength and high-conductivity copper lead

A wire material and high-conductivity technology, applied in the direction of conductive materials, conductive materials, cable/conductor manufacturing, etc., can solve the problems of unsatisfactory, low conductivity and tensile strength of pure copper block materials, etc., to achieve increased strength and both Conductivity and tensile strength, low cost effect

Active Publication Date: 2015-04-29
ANHUI CHUJIANG HIGH TECH ELECTRIC WIRE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the conductivity and tensile strength of the pure copper blocks prepared by the above methods are still low, which cannot meet the needs of some special occasions.

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific embodiments.

[0022] A preparation method for a high-strength and high-conductivity pure copper wire material, comprising the following steps:

[0023] (1) The material for high-strength and high-conductivity pure copper wire is based on high-purity cathodic electrolytic copper with a purity of more than 99.957%;

[0024] (2) Strictly remove surface dirt and preheat to 80-100°C;

[0025] (3) Using a power frequency electromagnetic melting furnace for melting, integrating melting and electromagnetic stirring, and controlling the melting temperature within the range of 1150±10°C to ensure that the electrolytic copper is fully melted and mixed evenly;

[0026] (4) The molten copper that has been completely smelted by the power frequency electromagnetic melting furnace overflows from the power frequency electromagnetic melting furnace to the holding furnace through the middle transi...

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Abstract

The invention discloses a preparation method of a material for a high-strength and high-conductivity copper lead and belongs to the technical field of material processing. By taking high-purity electrolytic cathode copper as a base body, the lead is prepared by the following steps: mixing and preheating; smelting; insulating; pulling, wiredrawing and crystallizing; and annealing. The TR standard volume resistivity is less than or equal to 0.01707 ohm/cm<3> and the tensile strength reaches over 420MPa. The lead can better satisfy the performance requirement of leads in the electronic industrial field, can be further used for the field of high-conductivity and high-strength materials and has the advantages of simple process and low cost.

Description

technical field [0001] The invention belongs to the technical field of material processing, and more specifically relates to a preparation method of a high-strength and high-conductivity pure copper wire material. Background technique [0002] Pure copper has high electrical and thermal conductivity, high plastic deformation ability, and good corrosion resistance. It is widely used in industry as a good conductor. However, although pure copper has the advantage of high electrical conductivity, its tensile strength is extremely low, usually only 120-160MPa. In addition, pure copper has high plastic deformation ability, but it is easy to work harden due to its extremely low static recrystallization temperature, thereby inhibiting further plastic deformation. Therefore, pure copper materials are mostly used in wires, conductors and coolers, etc., and it is difficult to meet various application requirements as a structural material. Generally, the conductivity of pure copper ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08B21C1/00H01B1/02H01B5/02H01B13/00
CPCC22C1/02C22F1/08H01B1/026H01B5/02H01B13/00
Inventor 任结
Owner ANHUI CHUJIANG HIGH TECH ELECTRIC WIRE CO LTD
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