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High-strength high-conductivity electrical copper alloy and processing method thereof

A processing method and high-conductivity technology, applied in the direction of conductive materials, conductive materials, metal/alloy conductors, etc., can solve the problems of reduced conductivity and low strength, and achieve the effect of improving comprehensive performance and improving strength

Active Publication Date: 2017-01-04
安徽晋源铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main problem currently existing in copper is its low strength. It is necessary to greatly increase its strength by adding alloy elements. For example, although the strength of Cu-Ni-Si copper alloy materials developed in Japan has reached more than 550MPa, the alloy strengthening is often accompanied by A decrease in electrical conductivity, which is the most important performance indicator for copper conductors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of processing method of high-strength and high-conductivity copper alloy proposed by the present invention comprises the following steps:

[0024] S1. After mixing Mg 0.3%, Ag 0.1%, Te 0.1%, Y 0.06%, La 0.01%, B0.08%, Nb 0.01%, and the balance is oxygen-free copper with a purity ≥ 99.99% by weight For vacuum smelting, when the vacuum degree in the smelting furnace is ≤1×10 -2 Start heating at Pa, raise the temperature to 1290°C, keep warm until the melt is completely melted;

[0025] S2. Drain the melt flow obtained in S1 into a vacuum holding furnace, feed inert gas, control the temperature of the holding furnace to 1210°C, and perform horizontal electromagnetic continuous casting. The melt is cast in a horizontal electromagnetic continuous casting system to obtain For a rod blank with a diameter of 20mm, the electromagnetic field frequency is 20Hz, the magnetic field current is 100A, the casting speed is 220mm / min, and the circulating spray mold is used for mu...

Embodiment 2

[0030] A kind of processing method of high-strength and high-conductivity copper alloy proposed by the present invention comprises the following steps:

[0031] S1. After mixing Mg 0.4%, Ag 0.05%, Te 0.2%, Y 0.03%, La 0.03%, B0.04%, Nb 0.05%, and the balance is oxygen-free copper with a purity ≥ 99.99% by weight For vacuum smelting, when the vacuum degree in the smelting furnace is ≤1×10 -2 Start heating at Pa, raise the temperature to 1260°C, and keep warm until it melts completely to obtain a melt;

[0032] S2. Drain the melt stream obtained in S1 into a vacuum holding furnace, feed inert gas, control the temperature of the holding furnace to 1220°C, and perform horizontal electromagnetic continuous casting. The melt is cast in a horizontal electromagnetic continuous casting system to obtain For a rod blank with a diameter of 5mm, the electromagnetic field frequency is 60Hz, the magnetic field current is 30A, the casting speed is 380mm / min, and the circulating spray mold is...

Embodiment 3

[0037] A kind of processing method of high-strength and high-conductivity copper alloy proposed by the present invention comprises the following steps:

[0038] S1. After mixing Mg 0.35%, Ag 0.07%, Te 0.15%, Y 0.04%, La 0.02%, B0.06%, Nb 0.03%, and the balance is oxygen-free copper with a purity ≥ 99.99% by weight For vacuum smelting, when the vacuum degree in the smelting furnace is ≤1×10 -2 Start heating at Pa, raise the temperature to 1270°C, and keep warm until it melts completely to obtain a melt;

[0039] S2. Drain the melt flow obtained in S1 into a vacuum holding furnace, feed inert gas, control the temperature of the holding furnace to 1215°C, and perform horizontal electromagnetic continuous casting. The molten liquid is cast in a horizontal electromagnetic continuous casting system to obtain For rod blanks with a diameter of 10mm, the electromagnetic field frequency is 40Hz, the magnetic field current is 60A, the casting speed is 300mm / min, and the circulating spra...

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Abstract

The invention discloses a processing method of a high-strength high-conductivity electrical copper alloy. The method includes the steps that S1, 0.3%-0.4% of Mg, 0.05%-0.1% of Ag, 0.1%-0.2% of Te, 0.03%-0.06% of Y, 0.01%-0.03% of La, 0.04%-0.08% of B, 0.01%-0.05% of Nb and the balance oxygen-free copper are mixed and then subjected to vacuum melting to obtain molten liquid; S2, the molten liquid is subjected to horizontal electromagnetic continuous casting and pulling casting to obtain a rod billet; S3, the rod billet is subjected to hot rolling, cold rolling and then annealing treatment to obtain a wire billet; S4, the wire billet is subjected to solid solution treatment, and aging treatment is performed after water quenching; and S5, an obtained wire rod is subjected to multi-pass drawing, intermediate continuous annealing is performed between different passes of drawing, and the high-strength high-conductivity electrical copper alloy is obtained. According to the high-strength high-conductivity electrical copper alloy and the processing method thereof provided by the invention, the electrical copper alloy obtained through the processing method is high in conductivity and meanwhile good in strength and extension property.

Description

technical field [0001] The invention relates to the technical field of electrical copper alloys, in particular to a high-strength and high-conductivity copper alloy and a processing method thereof. Background technique [0002] With the development of the electrical industry, the market's demand for copper materials for cables, wires, switches, and power supply and distribution equipment has increased rapidly. The reason why copper can attract attention and be promoted is that it is inseparable from its high electrical conductivity and high thermal conductivity. With the development of integrated circuits in the direction of high density, multi-function, miniaturization, and low cost, especially the packaging form is changed from the traditional The ceramic package is changing to the plastic package, and the copper material that matches the plastic package will be very useful. [0003] The main problem currently existing in copper is its low strength. It is necessary to gre...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22F1/08H01B1/02
CPCC22C9/00C22F1/08H01B1/026
Inventor 潘加明
Owner 安徽晋源铜业有限公司
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