High-conductivity copper alloy containing tellurium and nickel and preparation method thereof

A copper alloy and high-conductivity technology, applied in the field of high-conductivity copper alloy and its preparation, can solve the problems of high alloy strength and low plasticity, and achieve the effects of high purity, high raw material stability and good cutting performance

Active Publication Date: 2021-10-15
四川科派新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a high-conductivity copper alloy containing tellurium-nickel, adding nickel and iron elements in copper, nickel-iron solid solution expands the plasticity of iron in the alloy, and improves the strength of pure copper at the same time, overcoming the traditional Process copper-iron alloy has the disadvantages of high strength but low plasticity; the addition of tellurium improves the machinability of the alloy and the high conductivity of pure copper

Method used

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  • High-conductivity copper alloy containing tellurium and nickel and preparation method thereof

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Embodiment 1

[0043] A preparation method of a high-conductivity copper alloy containing tellurium-nickel, comprising the following steps:

[0044] S1. According to the composition of the raw materials, each component is weighed according to the weight percentage, and set aside;

[0045] S2. Preheat the melting furnace, add the weighed pure copper into the melting furnace and cover the graphite flakes, heat up and melt to a liquid state;

[0046] S3, after the pure copper is completely melted, add metal nickel to the copper liquid, and continue to stir slowly;

[0047] S4, after the metal nickel is completely melted, add phosphor-copper alloy and high-purity iron successively, and continue to stir slowly, the phosphorus in the phosphor-copper alloy accounts for 0.4% of the copper liquid weight;

[0048] S5. After slowly raising the temperature to completely melt the high-purity iron, add the pure hoof and continue to stir slowly. After the pure hoof is completely melted, the copper alloy liq...

Embodiment 2

[0062] A preparation method of a high-conductivity copper alloy containing tellurium-nickel, comprising the following steps:

[0063] Weigh 97% of copper, 0.7% of tellurium, 2% of nickel and 0.29% of iron in percentage by weight, and place them for later use; preheat the melting furnace to 500°C, add the weighed pure copper into the melting furnace and add it to its weight The 1% graphite flakes cover the copper layer evenly, and the temperature is raised to 1100°C at a heating rate of 50°C / min. After the pure copper is completely melted into copper liquid, add the weighed metallic nickel to the copper liquid, and continue to stir slowly for 2 minutes. Finally, stop stirring until the metal nickel is completely melted, add elemental phosphorus accounting for 0.1% of the weight of the copper liquid, and then add high-purity iron for about 30 minutes, then continue to stir slowly for 2 minutes; slowly raise the temperature to 1100 ° C, and wait until the high-purity iron is compl...

Embodiment 3

[0065] Different from Example 1, the content of each component in this example is calculated by weight percentage: copper 97.98%; tellurium 0.5%; nickel 1%; iron 0.5%; unavoidable impurities 0.02%.

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Abstract

The invention discloses a high-conductivity copper alloy containing tellurium and nickel and a preparation method thereof. Pure copper serves as a matrix, nickel, iron and tellurium are added to form a quaternary alloy, graphite flakes serve as a covering agent, phosphorus-copper alloy serves as a deoxidizing agent, all the components are sequentially added according to the melting point high absorption for melting, and the high-conductivity copper alloy is prepared through the casting technology. Nickel and iron elements and nickel-iron solid solution extend the plasticity of iron in the alloy, the strength of pure copper is improved, the defect that copper-iron alloy in a traditional process is high in strength but low in plasticity is overcome, the tellurium element improves the cutting machining performance of the alloy and the high conductivity of the pure copper, and the high-performance copper alloy which can maintain the mechanical property of the copper alloy and has high conductivity, high strength and good cutting performance is obtained.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a tellurium-nickel-containing high-conductivity copper alloy and a preparation method thereof. Background technique [0002] With the advancement of high-tech industries, new materials with high performance and high purity are the key to the development of high-tech fields. Copper alloy is an alloy composed of pure copper as the base and adding one or several elements. It has excellent electrical conductivity, thermal conductivity, ductility and heat resistance and has become an indispensable material for the development of our country. At present, the market is generally an alloy that adds at least one element such as lead, tin, magnesium, nickel, zinc, etc. to copper. Among them, lead can improve the cutting performance of copper alloy, but it is very harmful to human body, which is not in line with the development of modern industry. trend. In addition, due to the particularity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C9/06C22C1/02C22C1/03B22D18/02
CPCC22C9/00C22C9/06C22C1/02C22C1/03B22D18/02
Inventor 雷洋张磊何杰
Owner 四川科派新材料有限公司
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