High-performance audio transmission alloy wire and preparing method thereof

An alloy wire, high-performance technology, applied in the field of audio transmission alloy wire, can solve the problems of difficulty in being widely used in audio transmission wire, poor bending resistance, high price of pure gold, etc., to achieve strong hardness and oxidation resistance, and improved hardness , Conducive to the effect of high frequency transmission

Inactive Publication Date: 2019-11-19
SHANGHAI ELECTRIC CABLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor bending resistance of gold wires made of pure gold, micro-cracks are easily formed on the surface after a period of use, which has a great impact on audio signals, especially high-frequency signals.
In addition, because pure gold is expensive, it is often used in jewelry manufacturing, value investment and high-end electronic packaging, and it is difficult to be widely used in audio transmission lines.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The alloy wire for high-performance audio transmission in this embodiment and the preparation method thereof include the following steps:

[0036] 1) Using gold with a purity of 99.99% and 4N oxygen-free copper as raw materials, the proportion of copper is 30wt%, and the balance is gold;

[0037] 2) Prepare alloy ingots by using a vacuum melting furnace: Put gold and copper with a good ratio into the crucible of the melting furnace in turn, wherein the copper is located above the gold, and the vacuum is 8.0×10 -3 Start heating after Pa, stop vacuuming when the heating temperature reaches 500°C, and fill it with argon until the vacuum degree is 1.5×10 0 Pa, continue to heat until the copper is completely melted, after the temperature reaches 1120°C, stir and vibrate and then cast into ingots;

[0038] 3) Carry out solid solution treatment to the alloy ingot, heat it after argon protection, the heating and holding temperature is 660 ° C, the holding time is 4 hours, and ...

Embodiment 2

[0042] The alloy wire for high-performance audio transmission in this embodiment and the preparation method thereof include the following steps:

[0043] 1) Using gold with a purity of 99.99% and 4N oxygen-free copper as raw materials, the proportion of copper is 40wt%, and the balance is gold;

[0044] 2) Prepare alloy ingots by using a vacuum melting furnace: Put gold and copper with a good ratio into the crucible of the melting furnace in turn, wherein the copper is located above the gold, and the vacuum is evacuated to 6.0×10 -3 Start heating after Pa, stop vacuuming when the heating temperature reaches 500°C, and fill it with argon until the vacuum degree is 5×10 0 Pa, continue to heat until the copper is completely melted, after the temperature reaches 1150°C, stir and vibrate and then cast into ingots;

[0045] 3) Carry out solid solution treatment to the alloy ingot, heat it after argon protection, the heating and holding temperature is 700°C, the holding time is 2.5h...

Embodiment 3

[0049] The alloy wire for high-performance audio transmission in this embodiment and the preparation method thereof include the following steps:

[0050] 1) Using gold with a purity of 99.99% and 4N oxygen-free copper as raw materials, the proportion of copper is 28wt%, and the balance is gold;

[0051] 2) Prepare alloy ingots by using a vacuum melting furnace: Put gold and copper with a good ratio into the crucible of the melting furnace in turn, wherein the copper is located above the gold, and the vacuum is evacuated to 6.0×10 -3 Start heating after Pa, stop vacuuming when the heating temperature reaches 500°C, and fill it with argon until the vacuum degree is 5×10 0Pa, continue to heat until the copper is completely melted, after the temperature reaches 1080°C, stir and vibrate and then cast into ingots;

[0052] 3) Carry out solid solution treatment to the alloy ingot, heat it after argon protection, the heating and holding temperature is 650°C, and the holding time is 2...

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Abstract

The invention discloses a high-performance audio transmission alloy wire and a preparing method thereof. The preparing method includes the following steps that gold and copper are subjected to alloying smelting; alloy raw material copper covers alloy raw material gold, then smelting is conducted under the vacuum condition till the copper is completely melted, stirring and casting are conducted, and an alloy ingot is formed; solution treatment is conducted, wherein the alloy ingot is subjected to solution treatment under inert gas shielding conditions; aging treatment is conducted, wherein thealloy ingot obtained after solution treatment is subjected to aging treatment under the inertia gas shielding conditions; and wire drawing is conducted. The gold-copper alloy wire prepared through themethod has high strength, bending resisting performance, fatigue resisting performance, good electric performance and the like after cooperation of proper heat treatment; due to the fact that the tissue can be homogenized through heat treatment, an obtained gold-copper alloy can have the tone quality transmission characteristic similar to that of pure gold, and use of precious metal gold can be greatly reduced while the audio transmission performance of the alloy is not reduced.

Description

technical field [0001] The invention relates to the field of precious metal alloy smelting, in particular to an audio transmission alloy wire. Background technique [0002] The number of extranuclear electrons of gold is 50 more than that of copper, which is 2.7 times that of copper, and because the density of gold is 19.32g / cm 3 It is pure copper 8.89g / cm 3 2.17 times. Therefore, the free electron cloud density of the gold wire under the same volume is much higher than that of the copper wire, and this high-density electron cloud is the main carrier for transmitting signals. Therefore, utilizing the high-density electron cloud of gold wires for signal transmission would have great material fundamental advantages. [0003] Practice has shown that when pure gold wires are used for audio transmission, they are deeply loved by audio enthusiasts because of their natural and balanced timbre, clear and thorough analysis, and good separation of human voice and musical instrument...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/02C22C1/02C22F1/14C22F1/02
CPCC22C5/02C22C1/02C22F1/14C22F1/02
Inventor 张远望吴寅
Owner SHANGHAI ELECTRIC CABLE RES INST
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