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A kind of copper-iron alloy wire rod and preparation method thereof

A copper-iron alloy and wire technology, which is applied in the field of copper-iron alloy wire preparation, can solve the problems of high casting and processing cost, long process, high temperature annealing and the like, and achieves the effects of reducing production cost, uniform composition and high machinability

Active Publication Date: 2022-03-25
JINTIAN COPPER GROUP CORP NINGBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the smelting process needs to be filled with argon gas protection, and the drawing process needs multiple high-temperature annealing
For example, the patent mentions that from the Φ20mm upward blank to the Φ2mm wire, three times of annealing at 550°C for 2 hours are required, the cost of casting and processing is high, and the process is long

Method used

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  • A kind of copper-iron alloy wire rod and preparation method thereof
  • A kind of copper-iron alloy wire rod and preparation method thereof
  • A kind of copper-iron alloy wire rod and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1 and Example 5 were prepared by the method of the present invention, and the specific ingredients are shown in Table 1.

[0048] Example 1: Preparation of a copper-iron alloy wire rod with a diameter of 2mm and iron content of 5.12%. The process flow of the copper-iron alloy wire rod is: batching → melting and casting → slag removal converter → impurity removal, degassing → horizontal continuous casting → cold rolling → Annealing→drawing, specifically:

[0049] 1) Ingredients: Weigh the electrolytic copper plate, copper-iron master alloy according to the composition, Fe in the copper-iron master alloy: 48-52wt%;

[0050] 2) Smelting: adding the electrolytic copper plate and the copper-iron intermediate alloy into the smelting furnace to heat up and melt in sequence;

[0051] 3) Slag removal converter: After all the melts are melted, the melt temperature is controlled at 1300-1350°C, and then the slag cleaning agent is added in two times, and the oxide slag cle...

Embodiment 2

[0057] Example 2: Preparation of a copper-iron alloy wire rod with a diameter of 2mm and iron content of 8.45%. The process flow of the copper-iron alloy wire rod is: batching→melting and casting→slagging converter→removing impurities and degassing→horizontal continuous casting→cold rolling→ Annealing→drawing, specifically:

[0058] 1) Ingredients: Weigh the electrolytic copper plate, copper-iron master alloy according to the composition, Fe in the copper-iron master alloy: 48-52wt%;

[0059] 2) Smelting: adding the electrolytic copper plate and the copper-iron intermediate alloy into the smelting furnace to heat up and melt in sequence;

[0060] 3) Slag removal converter: After all the melts are melted, the melt temperature is controlled at 1380-1420°C, and then the slag cleaning agent is added in two times, and the oxide slag cleaning agent is added for the first time, and the addition amount is 0.4% of the total mass of the ingredients. Stir well from top to bottom after a...

Embodiment 3

[0066] Example 3: Preparation of a copper-iron alloy wire rod with a diameter of 2 mm and iron content of 10.21%. The process flow of the copper-iron alloy wire rod is: batching → melting and casting → slag removal converter → impurity removal, degassing → vertical continuous casting → cold rolling → Annealing→drawing, specifically:

[0067] 1) Ingredients: Weigh the electrolytic copper plate, copper-iron master alloy according to the composition, Fe in the copper-iron master alloy: 48-52wt%;

[0068] 2) Smelting: adding the electrolytic copper plate and the copper-iron intermediate alloy into the smelting furnace to heat up and melt in sequence;

[0069]3) Slag removal converter: After all the melts are melted, the melt temperature is controlled at 1380-1450°C, and then the slag cleaning agent is added in two times, and the oxide slag cleaning agent is added for the first time, and the addition amount is 0.4% of the total mass of the ingredients. Stir well from top to bottom...

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Abstract

The invention discloses a copper-iron alloy wire, which is characterized in that: the mass percentage of the copper-iron alloy is composed of 5.0-20.0wt% Fe, and the balance is Cu and unavoidable impurities; the microstructure of the copper-iron alloy contains direction of the fibrous Fe-rich phase, the fibrous Fe-rich phase accounts for more than 80% of the total area content of the Fe-rich phase. In the microstructure of the copper-iron alloy of the present invention, the fibrous Fe-rich phase accounts for more than 90% of the total area content of the Fe-rich phase, the fibrous Fe-rich phase is conducive to the balance of material strength and electrical conductivity, and the deviation of the iron content at the head and tail of the copper-iron alloy is ≤3 %.

Description

technical field [0001] The invention belongs to the technical field of copper alloys, in particular to a method for preparing copper-iron alloy wires. Background technique [0002] Copper-iron alloy has excellent properties, such as excellent electrical conductivity, wear resistance, electromagnetic shielding, resistance to high temperature softening and stress relaxation, and is a high-strength and high-conductivity EMC copper alloy. In addition, copper-iron alloys have good machinability, and can be processed into rods, wires, pipes, strips and foils according to needs, and have application prospects in electronic products, semiconductor manufacturing, auto parts, medical equipment and other industrial fields broad. [0003] However, the melting points and densities of copper and iron differ greatly, and at the peritectic temperature of 1094°C, the solid solubility of iron in copper is only 4%. With the increase of iron content, segregation is easy to occur during the sme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/03B21C37/04C22F1/08
CPCC22C9/00C22C1/03B21C37/04C22F1/08
Inventor 周涛郑良玉王永如傅杰巢国辉张宝赵玉刚何科科
Owner JINTIAN COPPER GROUP CORP NINGBO
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