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A high-conductivity copper alloy containing tellurium-nickel and its preparation method

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 high strength

Active Publication Date: 2022-06-07
四川科派新材料有限公司
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  • Summary
  • 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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  • A high-conductivity copper alloy containing tellurium-nickel and its preparation method

Examples

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Embodiment 1

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

[0044] S1, according to the composition of the raw material, take by weighing each component according to weight percentage, standby;

[0045] S2, preheating the furnace, adding the weighed pure copper into the furnace and covering the graphite flakes, heating up and melting to a liquid state;

[0046] S3. After all the pure copper is melted, add metallic nickel to the copper liquid, and continue to stir slowly;

[0047] S4. After the metal nickel is completely melted, add phosphorous copper alloy and high-purity iron in turn, and continue to stir slowly, the phosphorus in the phosphorous copper alloy accounts for 0.4% of the weight of the copper solution;

[0048] S5. After the high-purity iron is completely melted by slowly heating up, pure hoof is added, and stirring is continued slowly. After the pure hoof is completely melted, the copper alloy liqu...

Embodiment 2

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

[0063] Weigh 97% of copper, 0.7% of tellurium, 2% of nickel, and 0.29% of iron in weight percentages, respectively, and place them for later use; preheat the furnace to 500° C., add the weighed pure copper into the furnace and add its weight. The 1% graphite flakes are evenly covered with the copper layer, and the temperature is raised to 1100°C at a heating rate of 50°C / min. After the pure copper is completely melted into the copper liquid, the weighed metal nickel is added to the copper liquid, and the stirring is continued for 2min. Then, stop stirring and wait until the metal nickel is completely melted, add elemental phosphorus, which accounts for 0.1% of the weight of the copper solution, and add high-purity iron for about 30 minutes, then add high-purity iron, and continue to stir slowly for 2 minutes again; slowly heat up to 1100 ° C, and wait f...

Embodiment 3

[0065] Different from Example 1, the content of each component in this example is calculated as: 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-nickel and a preparation method thereof. A quaternary alloy is formed by adding nickel-iron-tellurium to pure copper, graphite flakes are used as a covering agent, and phosphor-copper alloy is used as a deoxidizer. According to the melting point and high suction, the materials are added sequentially for melting, and the high-conductivity copper alloy is prepared through the melting and casting process. Nickel, iron elements, solid solution of nickel and iron expands the plasticity of iron in the alloy, and at the same time increases the strength of pure copper, overcoming the shortcomings of high strength but low plasticity of copper-iron alloys in traditional technology, and the tellurium element improves the cutting performance of the alloy and pure copper A high-performance copper alloy that not only maintains the mechanical properties of the copper alloy, but also has high electrical conductivity, high strength and good cutting performance coexists.

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 progress of the high-tech industry, high-performance and high-purity new materials are the key to the development of the high-tech field. Copper alloy is an alloy composed of pure copper as the matrix and one or several elements added. 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, alloys with at least one element such as lead, tin, magnesium, nickel, zinc, etc. are generally added to copper on the market. Among them, lead can improve the cutting performance of copper alloys, but it is harmful to the human body, which is not in line with the development of modern industries. trend. In addition, due to the particulari...

Claims

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Application Information

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Patent Type & Authority Patents(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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