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Method for improving high-strength and high-conductivity performances of copper-based high-strength and high-conductivity material

A high-conductivity material and high-strength technology, applied in the field of alloy heat treatment, can solve problems such as complex research work, achieve good results, improve precipitation strengthening effect, and improve electrical conductivity.

Inactive Publication Date: 2013-10-30
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research work becomes more complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Taking the Cu-3.2Ni-0.7Si alloy of C70250 as an example, the operation steps of this method are as follows:

[0024] Copper Alloy Composition:

[0025] components

Ni

Si

Zn

Cu

Weight percentage (%)

3.2

0.7

0.32

Residual weight

[0026] Preparation method of copper alloy:

[0027] 1. Master alloy smelting: Under the protection of argon, put the above ingredients into the melting electric furnace and heat up to 1200 ℃ for smelting and keep it warm for 25 minutes to ensure that the alloy is melted and mixed evenly;

[0028] 2. Vacuum the furnace to 10 -2 After about Pa, the temperature is raised to 1450°C and kept for 20 minutes, then the furnace is cooled to 1150°C, which is a melt treatment cycle; then the temperature is raised to 1450°C again and kept for 20 minutes; then the temperature is lowered to 1150°C and then filled with argon and vented, which is Second melt processing cycle. After holding the heat for 1...

Embodiment 2

[0034] Taking Cu-0.4Cr-0.2Zr alloy as an example, the operation steps of this method are as follows:

[0035] Copper Alloy Composition:

[0036] components

Cr

Zr

Cu

Weight percentage (%)

0.4

0.2

Residual weight

[0037] Preparation method of copper alloy:

[0038] 1. Master alloy smelting: put the above ingredients into the induction melting electric furnace, and vacuum the electric furnace to 10 -2 After the temperature is below Pa, heat up to 1200°C for melting and hold for 25 minutes to ensure that the alloy is melted and mixed evenly;

[0039] 2. Melt treatment: continue to heat up the master alloy to 1500°C and keep it for 35 minutes, then cool it down to 1190°C in the furnace and keep it for 10 minutes, and finally fill it with argon and vent it, and cast it into a 10mm plate by semi-continuous casting (crystallizer + water cooling method).

[0040] 3. Heat the prepared copper sheet to 940°C under the protection of an ine...

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Abstract

The invention discloses a method for improving high-strength and high-conductivity performances of copper-based high-strength and high-conductivity material. The high-strength and high-conductivity performances are improved by carrying out melt overheating insulation treatment on the copper-based high-strength and high-conductivity alloy material under certain temperature. The method comprises the steps of alloy melting, overheating treatment, cooling and pouring. According to the invention, the melt overheating treatment is introduced into a smelting process of high-strength and high-conductivity copper alloy, and the method of melt overheating insulation treatment under high temperature is adopted to improve the structure of the alloy melt, thereby further influencing and enhancing alloy solidification structure and property. By adopting the method provided by the invention, under the premise of avoiding introducing heterogeneous elements which can lower the conductivity of the alloy, the high-strength and high-conductivity property of the copper alloy can be further improved, and other mechanical properties such as alloy plasticity can also be enhanced to certain degree.

Description

technical field [0001] The invention belongs to the technical field of alloy heat treatment, and in particular relates to a method for improving the high-strength and high-conductivity properties of copper-based high-strength and high-conductivity materials. Background technique [0002] With the development of science and technology, the requirement for conductive materials is not only the single performance of conductivity, but high-performance alloys with various comprehensive properties such as high strength, high conductivity and high wear resistance. For example, lead frames of large-scale integrated circuits, electrodes of various spot welding and seam welding machines, rotor wires of large high-speed turbine generators, contact materials, commutators of electric tools, overhead wires of large electric locomotives, high-voltage switches Reeds, microwave tubes, and components of aerospace vehicles all require materials to have higher strength while maintaining excellen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C9/00
Inventor 陈志浩黄仲佳
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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