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A kind of carbon microalloyed cu-fe series material and preparation method

A technology of alloying and cu-fe, which is applied in the field of carbon microalloying Cu-Fe series materials and its preparation, can solve the problems of low electrical conductivity, application limitations, slow diffusion speed, etc., and achieve high yield and simple preparation method , low cost effect

Active Publication Date: 2020-03-31
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the relatively high solid solubility of Fe in the Cu matrix at high temperature and the slow diffusion rate at low temperature, the content of solid-dissolved Fe in the Cu matrix at room temperature is much greater than the phase equilibrium concentration, and the conductivity of the solid-dissolved Fe atoms to the matrix The harmful effect of Cu-Fe series materials is very large, reaching 9.2μΩ·cm / wt%Fe. Therefore, compared with other series of high-strength and high-conductivity copper alloy materials, the conductivity of Cu-Fe series materials is low
How to simultaneously improve the conductivity and strength of Cu-Fe-based materials has always been a hot spot in the field of copper alloy material research. Some studies have improved the strength of Cu-Fe-based materials while improving the conductivity by adding Ag elements. However, because Ag is Precious metals will greatly increase the cost of materials, making the application of such materials limited

Method used

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  • A kind of carbon microalloyed cu-fe series material and preparation method

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Experimental program
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Effect test

Embodiment 1

[0022] (1) Ingredients: According to the requirements of chemical composition, 15% of the master alloy (Fe-5%C), 0.1% of pure silver, and electrolytic copper are used as the balance according to the mass percentage of the formula to obtain the ingredients;

[0023] (2) Smelting: Put the prepared ingredients into an intermediate frequency electromagnetic induction furnace, and melt for 25 minutes according to the conventional copper alloy smelting process;

[0024] (3) Casting: pouring molten metal into a graphite mold to obtain an ingot;

[0025] (4) Hot rolling: put the above-mentioned casting ingot into a heat treatment furnace, heat it to 850° C., keep it warm for 3 hours, and then hot-roll it on a conventional hot rolling mill to make it reach 40% deformation;

[0026] (5) Solution treatment: put the hot-rolled material into a heat treatment furnace, heat it to 950°C, keep it warm for 1 hour, and then quench it into cold water for rapid cooling;

[0027] (6) cold rolling:...

Embodiment 2

[0033] (1) Ingredients: According to the requirements of chemical composition, 2.5% of the master alloy (Fe-20%C), 0.25% of the master alloy (Cu-12%P) and electrolytic copper are used as the balance according to the mass percentage of the formula to obtain the ingredients;

[0034] (2) Smelting: Put the prepared ingredients into an intermediate frequency electromagnetic induction furnace, and melt for 25 minutes according to the conventional copper alloy smelting process;

[0035] (3) Continuous casting: continuous casting of molten metal to obtain continuous casting ingots;

[0036] (4) Hot rolling: the above-mentioned continuous casting ingot is hot rolled on a conventional hot rolling mill to make it reach 40% deformation;

[0037] (5) Solution treatment: put the hot-rolled material into a heat treatment furnace, heat it to 980°C, keep it warm for 1 hour, and then quench it into cold water for rapid cooling;

[0038] (6) cold rolling: the quenched material is subjected to ...

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Abstract

The invention discloses a carbon micro-alloyed Cu-Fe-based material and a preparation method thereof. According to the method, a trace amount of carbon elements are added into the Cu-Fe-based materialto refine grains and promote the precipitation of elements such as Fe from Cu matrix, so that the strength and the conductive heat conduction performance of the material are effectively improved. Cuis used as a matrix, Fe and other alloying elements and trace carbon elements are added, and smelting, casting or continuous casting, hot forging or hot rolling, solid solution treatment, cold rollingor cold drawing, aging and the like are carried out, so that the high-strength and high-conductivity copper alloy material is prepared. The prepared material has the advantages of being high in strength, good in electric conductivity and thermal conductivity, simple in preparation process and low in cost, and is widely applied to the fields of electronics, information, traffic, energy, metallurgy, electromechanical and the like.

Description

technical field [0001] The invention relates to a carbon microalloyed Cu-Fe series material and a preparation method thereof, belonging to the technical field of nonferrous metal materials. Background technique [0002] High-strength and high-conductivity copper alloy materials are indispensable key materials in the fields of electronics, information, transportation, energy, metallurgy, electromechanical, etc., and are widely used in the manufacture of integrated circuit lead frames, electrified railway contact wires, high-intensity magnetic field coils, motor rotor wires, resistors Welding electrodes etc. Cu-Fe series materials have the characteristics of good strength and electrical conductivity, simple processing technology, low production cost and environmental protection, and are widely used in the fields of electronics, electromechanical and transportation. However, due to the relatively high solid solubility of Fe in the Cu matrix at high temperature and the slow dif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22F1/08
CPCC22C9/00C22F1/08
Inventor 陆德平郭炜陆磊姜江付青峰周喆刘秋香邹晋
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI