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Copper alloy for high conductivity and high elongation wire and preparation method thereof

A high elongation, copper alloy technology, applied in the field of copper alloy preparation, can solve problems such as poor shaping, and achieve the effects of improving shaping, eliminating harmful effects, and improving strength and elongation.

Active Publication Date: 2017-01-04
南通海腾铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrical conductivity can reach 80-90%IACS, and the hard tensile strength is 520-620MPa. However, its disadvantage is that the shape is very poor, and the elongation is only about 2%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Weigh 0.04% lead, 0.6% iron, 0.06% cerium according to the weight percentage, and the rest is copper, mix the components and melt at 1200-1350°C, add cerium in the form of master alloy, and pour it into the ladle after melting , and then poured into the crystallization wheel from the ladle to form a slab, and the slab is hot-forged at a temperature of 800-950°C, and hot-rolled for 12 passes, with a reduction rate of 75%, to obtain a hot-rolled Material; solid solution treatment is carried out on the hot-rolled material, the temperature is 850-950°C, the holding time is 1-2h, and then quenched in water to obtain cold material; then the cold material is subjected to 20-40% cold rolling treatment, and finally Pickling is carried out to remove surface oxides, etc. That is, a copper alloy material for wire is obtained, the conductivity of which reaches 99% IACS, and the elongation is 15%.

Embodiment 2

[0026] Example 2: Weigh 0.05% lead, 0.7% iron, 0.06% cerium according to the weight percentage, and the rest is copper, mix the components and melt at 1200-1350°C, add cerium in the form of master alloy, and pour it into the ladle after melting , and then poured into the crystallization wheel from the ladle to form a slab, and the slab is hot-forged at a temperature of 800-950°C, and hot-rolled for 12 passes, with a reduction rate of 75%, to obtain a hot-rolled Material; solid solution treatment is carried out on the hot-rolled material, the temperature is 850-950°C, the holding time is 1-2h, and then quenched in water to obtain cold material; then the cold material is subjected to 20-40% cold rolling treatment, and finally Pickling is carried out to remove surface oxides, etc. That is to say, a copper alloy material for wire is obtained, the electrical conductivity reaches 102% IACS, and the elongation is 17%.

Embodiment 3

[0027] Example 3: Weigh 0.06% lead, 0.7% iron, 0.06% cerium according to the weight percentage, and the rest is copper, mix the components and melt at 1200-1350°C, add cerium in the form of master alloy, and pour it into the ladle after melting , and then poured into the crystallization wheel from the ladle to form a slab, and the slab is hot-forged at a temperature of 800-950°C, and hot-rolled for 12 passes, with a reduction rate of 75%, to obtain a hot-rolled Material; solid solution treatment is carried out on the hot-rolled material, the temperature is 850-950°C, the holding time is 1-2h, and then quenched in water to obtain cold material; then the cold material is subjected to 20-40% cold rolling treatment, and finally Pickling is carried out to remove surface oxides, etc. That is to say, a copper alloy material for wire is obtained, the electrical conductivity reaches 97% IACS, and the elongation is 19%.

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Abstract

The invention discloses a copper alloy for a wire with high conductivity and high elongation rate and a preparation method thereof, belonging to the technical field of copper alloy preparation. The copper alloy material for the wire contains 0.04-0.06% lead by weight, 0.6-0.7% iron, 0.06% cerium and the rest is copper. The preparation method is that the components in the above weight ratio are mixed and smelted, ingot-cast, hot-rolled, solutionized, cold-rolled and pickled. Its electrical conductivity is 97-102% IACS, and its elongation is 15-19%. It can better meet the performance requirements of copper alloy materials for wires in the field of electronics industry, and can also be used in the field of copper alloy materials that require high conductivity and high elongation. And it has the advantages of simple process and low cost.

Description

technical field [0001] The invention belongs to the technical field of copper alloy preparation, and more specifically relates to a copper alloy for high conductivity and high elongation wire and a preparation method thereof. Background technique [0002] Multi-component composite microalloying technology is a research hotspot of high-performance copper alloy materials. Copper wire alloy materials require high electrical conductivity, high strength requirements and good elongation. The Chinese patent application with the application number 02133772.1 discloses a copper alloy material for catenary wires. This copper alloy material contains tellurium, lithium and magnesium, which improves the strength of the copper alloy, but the conductivity is low, the highest is only It is 76%IACS. The Chinese patent application with the application number 200410022528.5 discloses an arc-resistant copper-tellurium-chromium alloy material. The composition of this alloy material is: 0.2-1.0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/02
Inventor 薛建咸会增周杰于云霞
Owner 南通海腾铜业有限公司
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