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High-conductivity oxygen-free copper silver alloy rod and production technology thereof

A production process, copper-silver alloy technology, applied in the field of high-conductivity oxygen-free copper-silver alloy rod and its production process, can solve the problems of long process, large fluctuations in composition, unable to meet the urgent needs of the high-end market, etc., and achieve the effect of excellent performance

Inactive Publication Date: 2015-11-18
浙江力博实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] High-conductivity oxygen-free copper-silver alloys are mainly used in the fields of automobiles, electrified railways, electric contact switches, generators or aerospace. At present, the production of copper-silver alloy materials in China mainly relies on traditional casting processes for production, with high oxygen content. The composition fluctuates greatly, the performance stability is poor, and the traditional preparation and processing process is long, and the overall cost is high. As a result, the current domestic high-conductivity oxygen-free copper-silver alloy cannot meet the urgent needs of the high-end market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The production process of the high-conductivity oxygen-free copper-silver alloy rod in Example 1 includes the following steps: Melting is carried out by using an upwardly directed power frequency furnace, and the upwardly directed power frequency furnace includes a melting furnace and a holding furnace.

[0018] 1. Add copper and silver in proportion to the melting furnace. When preparing a 0.03% copper-silver alloy rod, add 200Kg copper and 60g silver in the melting furnace and melt it. The temperature of the melting furnace is 1165°C; add Charcoal is used for covering, and the thickness of charcoal is 50mm.

[0019] 2. Install a crystallizer in the holding furnace to lead up the copper-silver alloy rod. The temperature of the holding furnace is 1161°C, and the cooling water pressure of the crystallizer is 0.31MPa. The holding furnace is covered with graphite phosphorus powder, and the thickness of graphite phosphorus powder is 30mm.

[0020] The copper in Example 1 i...

Embodiment 2

[0023] The production process of the high-conductivity oxygen-free copper-silver alloy rod in this embodiment 2 includes the following steps: Melting is carried out by using an upwardly directed power frequency furnace, and the upwardly directed power frequency furnace includes a melting furnace and a holding furnace.

[0024] 1. Add copper and silver in proportion to the melting furnace. When preparing a 0.03% copper-silver alloy rod, add 200Kg copper and 60g silver in the melting furnace and melt it. The temperature of the melting furnace is 1169°C; add Charcoal is used for covering, and the thickness of charcoal is 200mm.

[0025] 2. Install a crystallizer in the holding furnace to lead up the copper-silver alloy rod. The temperature of the holding furnace is 1164°C, and the cooling water pressure of the crystallizer is 0.35MPa. The holding furnace is covered with graphite phosphorus powder, and the thickness of graphite phosphorus powder is 100mm.

[0026] The copper in E...

Embodiment 3

[0029] The production process of the high-conductivity oxygen-free copper-silver alloy rod in Example 3 includes the following steps: Melting is carried out by using an upwardly directed power frequency furnace, and the upwardly directed power frequency furnace includes a melting furnace and a holding furnace.

[0030] 1. Add copper and silver in proportion to the melting furnace. When preparing a 0.03% copper-silver alloy rod, add 200Kg copper and 60g silver in the melting furnace and melt it. The temperature of the melting furnace is 1167°C; add Charcoal is used for covering, and the thickness of charcoal is 125mm.

[0031] 2. Install a crystallizer in the holding furnace to lead up the copper-silver alloy rod. The temperature of the holding furnace is 1163°C, and the cooling water pressure of the crystallizer is 0.33MPa. The holding furnace is covered with graphite phosphorus powder, and the thickness of graphite phosphorus powder is 65mm.

[0032] The copper in Example 3 ...

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Abstract

The invention relates to a high-conductivity oxygen-free copper silver alloy rod and a production technology thereof. The alloy rod comprises the following components of silver, copper and oxygen, wherein the content of the silver is 0.03%-0.10%, a fluctuation range of the content of the silver is 10ppm, the content of the copper and the silver is higher than 99.99%, and the content of the oxygen is lower than 5ppm. The conductivity of the alloy rod is higher than 100%IACS, the tensile strength of the alloy rod is higher than 190MPa, the extension rate of the alloy rod is higher than 37%, the Brinell hardness of the alloy rod is HB66-75, and the dimensional tolerance of the alloy rod is smaller than 0.1mm. The production technology of the high-conductivity oxygen-free copper silver alloy rod disclosed by the invention adopts a high-efficiency energy-saving continuous production method, and properties are excellent.

Description

technical field [0001] The invention relates to a high-conductivity oxygen-free copper-silver alloy rod and its production process, which are mainly used in the fields of automobiles, electrified railways, electric contact switches, generators, aerospace and the like. Background technique [0002] Copper-silver alloy is a small amount of silver added to the copper matrix, which has little effect on the electrical conductivity and thermal conductivity of the copper matrix, and has little effect on its plasticity, but it can significantly increase the recrystallization temperature and high temperature creep of copper. strength. Therefore, the copper-silver alloy with a silver content of 0.03wt% to 0.30wt% is an electrical material with high practical value. [0003] High-conductivity oxygen-free copper-silver alloys are mainly used in the fields of automobiles, electrified railways, electric contact switches, generators or aerospace. At present, the production of copper-silve...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C1/02B22D11/00
Inventor 徐高磊
Owner 浙江力博实业股份有限公司
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