Copper-iron alloy material and preparation method and application thereof

A copper-iron alloy and raw material technology, applied in the field of copper-iron alloy materials and their preparation, can solve the problems of uneven composition, high equipment requirements, and high energy consumption, and achieve the effects of uniform tissue composition, lower melting temperature, and improved yield

Active Publication Date: 2020-10-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem to be solved: the present invention provides a copper-iron alloy material and its preparation method. The scheme 1) solves the problem of uneven composition and easy segregation in the smelting of copper-iron alloy; 2) due to copper (1089°C) and iron (1538 ℃) The difference in melting point is large. To directly produce copper-iron alloy materials, it needs to be heated to above 1550 ℃, which requires high equipment and consumes a lot of energy.

Method used

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  • Copper-iron alloy material and preparation method and application thereof
  • Copper-iron alloy material and preparation method and application thereof
  • Copper-iron alloy material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] 1. Ingredients: Proportion according to 5wt.% of Cu and 95wt.% of Fe, and weigh the corresponding raw materials, wherein Fe is high-purity iron powder, pellets or blocks with a purity of ≥99.99%, and Cu is electrolytic iron with a purity of ≥99.99%. copper;

[0023] 2. Vacuum arc smelting: put the raw materials weighed into the vacuum arc smelting furnace, control the arc gun to melt the metal raw materials, make the melt composition uniform through electromagnetic stirring, and then obtain the iron-copper master alloy ingot in the water-cooled mold; scan see photos figure 1 , EDS spectrum see Figure 4 , the measured chemical composition (wt.%) is Fe: 95.01%, Cu: 4.99%;

[0024] 3. Crucible furnace smelting: mix iron-copper master alloy ingots with electrolytic copper according to the weight percentage of 20wt.% Fe and 0.002wt.% La, place the ingredients in a graphite crucible, heat under vacuum conditions, and smelt The temperature is 1250°C, and mechanical stirrin...

Embodiment 2

[0029] 1. Ingredients: According to the ratio of 10wt.% Cu and 90wt.% Fe, the corresponding raw materials are weighed, wherein Fe is high-purity iron powder, pellets or lumps with a purity of ≥99.99%, and Cu is electrolytic iron with a purity of ≥99.99%. copper;

[0030] 2. Vacuum arc smelting: put the raw materials weighed into the vacuum arc smelting furnace, control the arc gun to melt the metal raw materials, make the melt composition uniform through electromagnetic stirring, and then obtain the iron-copper master alloy ingot in the water-cooled mold; scan see photos figure 2 , EDS spectrum see Figure 5 , its chemical composition (wt.%) is measured as Fe: 90.04%, Cu: 9.96%;

[0031] 3. Crucible furnace smelting: mix iron-copper intermediate alloy ingots with electrolytic copper according to the weight percentage of 10wt.% Fe, 0.05wt.% La, put the ingredients in a graphite crucible, heat under vacuum conditions, and smelt The temperature is 1230°C, apply mechanical sti...

Embodiment 3

[0036] 1. Ingredients: Proportioning according to Cu is 20wt.%, Fe is the balance, and the corresponding raw materials are weighed, wherein Fe is high-purity iron powder, grain or block with a purity of ≥99.99%, and Cu is electrolytic copper with a purity of ≥99.99% ;

[0037] 2. Electric vacuum arc smelting: Put the raw materials weighed into the vacuum arc smelting furnace, control the arc gun to melt the metal raw materials, make the melt composition uniform through electromagnetic stirring, and then obtain the iron-copper master alloy ingot in the water-cooled mold; Its scanned photo see image 3 , EDS spectrum see Figure 6 , the measured chemical composition (wt.%) is Fe: 79.99%, Cu: 20.01%;

[0038]3. Crucible furnace smelting: mix iron-copper master alloy ingot with electrolytic copper according to 5wt.% Fe, 0.02wt.% La, place in graphite crucible, heat under vacuum condition, melting temperature is 1200 ℃, apply mechanical Stir, stir evenly, keep warm for 5-20 minu...

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Abstract

The invention provides a copper-iron alloy material and a preparation method and application thereof. The copper-iron alloy material comprises, by weight, 5-20wt. % of iron, 0.002-0.05wt.% of RE and the balance copper. The copper-iron alloy material is easy to operate, the smelting temperature is greatly reduced, the smelting temperature in a crucible furnace is 1200-1250 DEG C, and compared withthe temperature of 1600 DEG C or above in a traditional method, energy consumption can be reduced; a vacuum smelting technology is adopted, oxidation in the high-temperature process can be avoided, the high purity of the material is guaranteed, and the oxygen element content can be lower than 150ppm; and the vacuum smelting technology is adopted, subsequent cold drawing deformation is combined, the structure components of a copper-iron alloy wire are uniform, the ductility of the copper-iron alloy wire can reach 24% or above, the wire breaking problem in electromagnetic shielding wire preparation can be reduced, the yield is increased, and the performance requirements for electric conduction and magnetic shielding of the electromagnetic shielding material can be met.

Description

technical field [0001] The invention belongs to the technical field of metal smelting and processing, and in particular relates to a copper-iron alloy material and its preparation method and application. Background technique [0002] With the rapid development of modern electronic information, more and more electronic and electrical equipment are put into use. At the same time, electromagnetic waves of different frequencies and energies generated by these electronic equipment are flooding people's lives as a new source of pollution. , The electromagnetic radiation hazards caused by electromagnetic waves mainly include three major aspects: negative effects on human health, effects on the natural environment, and interference on electronic equipment. [0003] Cu-Fe alloy has good prospects in large-scale industrial preparation and application due to its low cost, abundant raw materials, huge magnetoresistance effect and special physical properties. Copper-iron materials have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C22C1/03C22F1/08
CPCC22C9/00C22C1/02C22C1/03C22F1/08C22C2202/02
Inventor 方峰甘雨杨飞周雪峰蒋建清
Owner SOUTHEAST UNIV
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