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Dispersion strengthened copper alloy, and preparing technical method

A technology for dispersion-strengthened copper and its preparation process, which is applied in the fields of integrated circuit lead frame materials, resistance welding electrodes, and microwave electron tubes, can solve the problems of long process flow, difficult quality control, and high labor intensity of dispersion-strengthened copper alloys, so as to improve the material quality. Strength and cold workability, avoid hydrogen expansion, good air tightness of materials

Inactive Publication Date: 2005-01-12
LUOYANG COPPER PROCESSING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional internal oxidation method to produce dispersion strengthened copper alloy has a long process, high cost, high labor intensity, and difficult to control the quality

Method used

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  • Dispersion strengthened copper alloy, and preparing technical method

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Embodiment 1

[0020] Take the production of TuMAI0.12 alloy for electric vacuum microwave tube as an example. The raw materials are high-purity oxygen-free electric copper, copper-30% aluminum master alloy, copper-13% phosphorus deoxidizer master alloy;

[0021] 1) Preparation of copper-aluminum alloy powder by nitrogen atomization: add high-purity electric copper into a 100Kw intermediate frequency melting furnace, melt for 15 minutes after melting, add 15 grams of copper-13% phosphorus master alloy for 1 minute, and then add copper - 30% aluminum master alloy melting for 5 minutes, then with 0.75N / mm 2 Nitrogen is atomized to make -40 mesh copper-aluminum alloy powder;

[0022] 2) Preparation of oxygen source: Take -100 mesh copper-aluminum alloy powder and heat it to 380°C in a resistance furnace, keep it warm for 50 hours, and then heat it at 840°C for 1.5 hours under the protection of nitrogen to make the required oxygen source;

[0023] 3) Mixing: Mix the prepared oxygen source and ...

Embodiment 2

[0030] Take the LCM115 alloy for the production of 110,000 high-voltage isolation switch conductive rods as an example, the raw materials are high-purity oxygen-free electric copper, copper-30% aluminum master alloy, copper-13% phosphorus deoxidizer master alloy;

[0031] 1) Preparation of copper-aluminum dispersion strengthened copper alloy powder by water atomization: add high-purity oxygen-free electric copper in a 100Kw intermediate frequency melting furnace, melt for 15 minutes after melting, then add 15 grams of copper-13% phosphorus master alloy for melting 1 minute, then add copper-30% aluminum master alloy for smelting for 5 minutes, and then use 8.5N / mm 2 High-pressure water is atomized to make -100 mesh copper-aluminum alloy powder;

[0032] 2) Production of oxygen source: Take -100 mesh copper-aluminum alloy powder and heat it in a resistance furnace to 380°C for 25 hours, then heat it at 840°C for 1.5 hours under the protection of nitrogen to make the required oxy...

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Abstract

A dispersion intensified copper alloy characterizes that the distribution ratio of the Al content is 0.05-0.6%, the rest is copper and the impurities are more than 0.5%, nitrogen or high pressure atomized water are utilized to prepare Cu-Al alloy powders by oxygen source preparation-materials mixing-cold isostatic pressure-comprehensive heat process-extrusion-cold process-performance test.

Description

Technical field: [0001] The invention relates to the technical field of microwave electron tubes, resistance welding electrodes, and integrated circuit lead frame materials, and relates to a dispersion-strengthened copper alloy and a preparation process thereof. technical background: [0002] With the rapid development of microwave electronic technology, the important role of microwave electron tubes in the modernization of weapons and equipment has become increasingly important. The development of new microwave electron tubes is the need for the realization of national defense modernization and the development of high technology. The microwave electron tube used for the key components of the 052 ship used to be made of oxygen-free copper material. Due to its low mechanical strength, especially after burning hydrogen at high temperature, the strength is even worse, so it cannot be used to process some key components such as the inner cavity of the magnetron and the tuning rin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/04C22C9/01
Inventor 宋厚启牛立业何伯恂曹先杰孟惠娟
Owner LUOYANG COPPER PROCESSING GROUP
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