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Cu-Fe in-situ composite with added boron, silver and rare earth elements and preparation method thereof

An in-situ composite material and rare earth element technology, applied in the field of non-ferrous metal materials, can solve the problems of high melting point, large immiscible gap, and restrictions on the preparation and application of new materials, and achieve high yield, improve strength and conductivity, and conduct electricity. The effect of performance improvement

Inactive Publication Date: 2011-01-12
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on deformed copper-based composite materials mainly focuses on Cu-Nb and Cu-Ag in-situ composite materials, but since Nb and Ag are both noble metals, and the melting point of Nb is as high as 2648 °C, there are large amounts of liquid Cu and Nb. immiscible gap, thus limiting the preparation and application of this class of new materials

Method used

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  • Cu-Fe in-situ composite with added boron, silver and rare earth elements and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Ingredients: According to the requirements of the chemical composition, 8% of pure iron, 0.05% of pure silver, 0.05% of boron-containing alloy, 0.01% of rare earth Ce, and electrolytic copper that meet the mass percentage of the formula are used as the balance to obtain the ingredients;

[0032] (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;

[0033] (3) Casting: pouring molten metal into a graphite mold to obtain an ingot;

[0034] (4) Hot rolling: put the above-mentioned casting ingot into a heat treatment furnace, heat it to 880° C., keep it warm for 3 hours, and then hot-roll it on a conventional hot rolling mill to make it reach 40% deformation;

[0035] (5) Solution treatment: put the hot-rolled alloy into a heat treatment furnace, heat it to 950°C, keep it warm for 1 hour, and then quench it into cold water for rap...

Embodiment 2

[0044] (1) Ingredients: According to the chemical composition requirements, 10% iron-containing alloy, 0.05% pure silver, 0.05% boron-containing alloy, 0.01% rare earth lanthanum, and electrolytic copper are used as the balance to obtain the ingredients according to the mass percentage of the formula;

[0045] (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;

[0046] (3) Casting: pouring molten metal into a graphite mold to obtain an ingot;

[0047] (4) Hot forging: Put the above-mentioned cast casting into a heat treatment furnace, heat it to 900°C, keep it warm for 3 hours, and then hot-roll it on a conventional hot rolling mill to achieve a deformation of 40%;

[0048] (5) Solution treatment: put the hot-rolled alloy into a heat treatment furnace, heat it to 980°C, keep it warm for 1 hour, and then quench it into cold water for rap...

Embodiment 3

[0057] (1) Ingredients: According to the chemical composition requirements, 15% of pure iron, 0.1% of silver-containing alloy, 0.05% of boron-containing alloy, 0.01% of rare earth yttrium, and electrolytic copper are used as the balance to obtain the ingredients according to the mass percentage of the formula;

[0058] (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;

[0059] (3) Casting: pouring molten metal into a water-cooled steel mold to obtain an ingot;

[0060](4) Hot forging: put the above-mentioned cast casting into a heat treatment furnace, heat it to 930°C, keep it warm for 3 hours, and then hot-roll it on a conventional hot rolling mill to achieve a deformation of 40%;

[0061] (5) Solution treatment: put the hot-rolled alloy into a heat treatment furnace, heat it to 1000°C, keep it warm for 1 hour, and then quench it into...

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Abstract

The invention discloses a Cu-Fe in-situ composite with boron, silver and rare earth elements added and a preparation method thereof. The invention is characterized by adopting multimode comprehensive strengthening technology such as multi-micro alloying, solid solution strengthening, aging strengthening, fine grain strengthening, distortion strengthening, fiber strengthening and the like, using Cu as the base and adding a little Fe and trace Ag and B, rare earth or rare earth compounds to prepare the high strength and high conductivity copper alloy material through smelting, casting, hot forging or hot rolling, solid solution treatment, cold rolling or cold drawing, aging and the like. The prepared material has the advantages of high strength, good electric and thermal conductivity, simple preparation process and low cost, thus realizing wide application in the fields such as electronics, information, transportation, energy, metallurgy, electromechanics and the like.

Description

technical field [0001] The invention relates to a Cu-Fe composite material added with boron, silver and rare earth elements 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. [0003] The conductivity and strength of copper alloy materials are a pair of contradictions that are difficult to balance, that is, good conductivity leads to poor strength, and the increase in strength leads to a decrease in conductivity. The deformation in-situ composite method to prepare high-strength and high-conductivity copper alloy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/08
Inventor 陆德平陈志宝刘克明陆磊邹晋杨艳玲谢仕芳魏仕勇
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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