Copper alloy wire with excellent heat dissipation performance and application thereof

By using specific formula smelting, multi-stage cold drawing, argon protective annealing, nano-oxide coating and low friction stranding during the preparation process of copper alloy wires, multiple technical problems in copper alloy wires in high-speed drawing, annealing, coating and stranding are solved, and excellent heat dissipation performance and long-term stable conductivity are achieved.

CN119657686AActive Publication Date: 2025-03-21JIANGXI KAIQIANG NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202411836777.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-21
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

Copper alloy wires are prone to microcracks during high-speed drawing. During high-temperature annealing, the segregation of alloy elements leads to uneven grains and uneven surface coating. The wire is severely damaged during strands of twisting, and it is prone to oxidation and corrosion in high-temperature environments, resulting in a decrease in conductivity.

Method used

Copper and trace alloy elements are melted into a uniform alloy liquid through a specific formula, and multi-stage continuous cold drawing is performed to control material stress. Argon protection is used to accurately control the temperature to eliminate segregation during high-temperature annealing. The surface is coated with a nano-oxide stable coating, a low-friction coating is applied and twisted to reduce friction.

Benefits of technology

It effectively avoids the occurrence of microcracks, ensures the uniformity of grains, improves the uniformity and corrosion resistance of the surface coating, reduces wire damage, extends the service life of copper alloy wires in high temperature environments, and improves the conductive properties.

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Abstract

The invention provides a copper alloy wire with excellent heat dissipation performance and application thereof, and relates to the technical field of metal material processing. The preparation method of the copper alloy wire comprises the following steps: S1, preparing alloy liquid; s2, casting and cold drawing; s3, high-temperature annealing treatment; s4, surface coating treatment; and S5, stranding a plurality of strands. In the high-temperature annealing treatment, alloy element segregation is eliminated through accurate temperature control, uniform growth of crystal grains is guaranteed, alloy element segregation is effectively eliminated, uniform growth of the crystal grains is guaranteed, and therefore the overall performance of the copper alloy wire is improved. The surface of the copper alloy wire is coated with a nano oxide stable coating, so that the comprehensive performance of the copper alloy wire is improved. When the multi-strand copper alloy wire is pretreated, the low-friction coating is applied and the multi-strand copper alloy wire is stranded, so that the friction force between the wires is reduced, the wires are prevented from being damaged, the conductivity of the copper alloy wire in a high-temperature environment is effectively improved, and the service life of the copper alloy wire is prolonged.
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Citation Information

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