High-strength electro-conductive copper alloy wire and production method thereof

A conductive wire material and production method technology, applied in metal rolling, temperature control, metal rolling, etc., can solve problems such as low tensile strength and heat resistance, human body and environmental pollution, and large market demand, and achieve Effect of promoting dispersion, improving heat resistance, and good overall performance

Inactive Publication Date: 2006-07-19
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensile strength and heat resistance of the above-mentioned materials are low. While meeting the requirements of electrical conductivity, they cannot meet the requirements of large stress and high-temperature operations. Therefore, when cables or wires are required to be frequently Copper-cadmium (Cu-Cd) alloy wires with excellent comprehensive performance are used under severe conditions such as overheating, but the cadmium vapor generated during the casting production process of Cu-Cd alloy wires has serious pollution to the human body and the environment, so a large number of The use of Cu-Cd alloy wire will pose a great hazard to environmental protection
[0003] Due to the large market demand for Cu-Cd alloy wires, in order to completely solve the pollution problem of the production of this material, research on substitute materials for Cu-Cd alloy wires has been widely carried out in the field of material sci

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The composition produced by the aforementioned process is an alloy of Mg: 0.41%, Ni: 0.45%, Si: 0.12%, Zr: 0.09%, and copper as the balance. After the alloy is melted, it is continuously cast at a speed of 0.17m / min at a constant temperature of 1220°C to cast a Ф16mm wire billet, after peeling, annealing, cold drawing, solution treatment (Ф1.2mm, 850°C×0.5h), cold drawing, Aging treatment (Ф0.4mm, 450℃×1h) and cold drawing, the performance is σ at the finished size of Ф0.1mm b : 770MPa, δ 10 : 6.5%, %IACS: 63, one-way twist: 36 times;

Embodiment 2

[0026] The composition produced by the aforementioned process is an alloy of Mg: 0.45%, Ni: 0.43%, Si: 0.1%, Zr: 0.12%, and copper as the balance. After the alloy is melted, it is continuously casted at a speed of 0.16m / min at a constant temperature of 1200°C, with a wire billet of Ф16mm. After peeling, annealing, cold drawing, solution treatment (Ф1.2mm, 850°C×0.5h), cold drawing, Aging treatment (Ф0.4mm, 450℃×1h) and cold drawing, the performance is σ at the finished size of Ф0.1mm b : 760MPa, δ 10 : 5%, %IACS: 65, one-way twist: 35 times;

Embodiment 3

[0028] The composition produced by the aforementioned process is an alloy of Mg: 0.2%, Ni: 0.8%, Si: 0.2%, Zr: 0.15%, and copper as the balance. After the alloy is melted, the Ф40mm billet is continuously cast at a speed of 0.1m / min at a constant temperature of 1160°C. After rolling, peeling, annealing, cold drawing, solution treatment (Ф1.2mm, 850°C×0.5h), cold Drawing, aging treatment (Ф0.4mm, 450℃×1h) and cold drawing, the performance is σ when the finished product size is Ф0.1mm b : 790MPa, δ 10 : 5%, %IACS: 61, one-way twist: 30 times;

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Abstract

The special high-strength Cu alloy cable or wire as the alternate material for Cu-Cd alloy fit to drag, compact, kink and superheat frequently comprises: 0.2-0.6% Mg for solution strengthening, 0.4~0.8% Ni and 0.1~0.2% Si to form Ni2Si intermetallic compound for precipitation hardening, 0.08~0.2% Zr to fine base, promote dispersion, improve thermal resistance and stabilize Mg; and other as Cu, and is manufactured by dissolving, depositing and cold processing.

Description

technical field [0001] The invention belongs to the technical field of copper alloys, and relates to a high-strength copper alloy conductive wire material and a production method. Background technique [0002] Copper and copper alloys have good conductivity and are the main electrical carrier materials in the fields of electricity, electronics and communications. The materials usually used for wires or cables are mainly pure copper, such as T 2 、TU 1 、TU 2 And TUP, this kind of material has excellent electrical conductivity, can carry out plastic processing with large deformation under normal temperature conditions, and obtain the required size and performance. The tensile strength and heat resistance of the above-mentioned materials are low. While meeting the requirements of electrical conductivity, they cannot meet the requirements of large stress and high-temperature operations. Therefore, when cables or wires are required to be frequently Copper-cadmium (Cu-Cd) alloy ...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C1/02B22D11/16B21B37/16B21B37/74C22F1/08
Inventor 徐玉松张超吕伟刚
Owner JIANGSU UNIV OF SCI & TECH
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