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Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment

An in-situ composite material and magnetic field treatment technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve problems such as unseen copper alloys

Active Publication Date: 2010-07-14
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

However, there is no report on the use of magnetic field treatment of copper alloys during pouring or continuous casting solidification

Method used

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  • Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment
  • Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment
  • Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Ingredients: Material chemical composition (mass percentage): iron: 8, silver 0.05, boron 0.05, cerium 0.01, the rest is copper, raw materials use pure iron, pure silver, boron-copper alloy, metal cerium, electrolytic copper, according to The conventional alloy batching method calculates the addition amount of various raw materials to obtain the batching;

[0037] (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;

[0038] (3) pouring: the molten metal is poured into the graphite mold;

[0039] (4) Magnetic field controlled solidification: an AC magnetic field with a magnetic field strength of 0.2T is applied during the solidification process of the ingot;

[0040](5) Hot rolling: put the above-mentioned cast ingot into a heat treatment furnace, heat it to 880° C., keep it warm for 3 hours, and then hot-roll it on a conventi...

Embodiment 2

[0050] (1) Ingredients: material chemical composition (mass percentage): iron: 10, silver 0.08, boron 0.05, yttrium 0.05, the rest is copper, raw materials use pure iron, silver-containing alloy, boron-copper alloy, metal yttrium, electrolytic copper, Calculate the addition amount of various raw materials according to the conventional alloy batching method to obtain the batching;

[0051] (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;

[0052] (3) Pouring: pour the molten metal into the water-cooled steel mold;

[0053] (4) Magnetic field controlled solidification: an AC magnetic field with a magnetic field strength of 0.5T is applied during the solidification process of the ingot;

[0054] (5) Hot forging: Put the above-mentioned pouring casting into a heat treatment furnace, heat it to 900°C, keep it warm for 3 hours, and then ho...

Embodiment 3

[0064] (1) Ingredients: material chemical composition (mass percentage): iron: 12, silver 0.1, boron 0.1, lanthanum 0.08, and the rest is copper. Raw materials use iron-containing alloys, silver-containing alloys, boron-copper alloys, metal yttrium, and electrolytic copper. Calculate the addition amount of various raw materials according to the conventional alloy batching method to obtain the batching;

[0065] (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;

[0066] (3) pouring: the molten metal is poured into the graphite mold;

[0067] (4) Magnetic field controlled solidification: an AC magnetic field with a magnetic field strength of 0.8T is applied during the solidification process of the ingot;

[0068] (5) Hot forging: Put the above-mentioned cast casting into a heat treatment furnace, heat it to 930°C, keep it warm for 3 hou...

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Abstract

The invention provides a method for preparing a high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment, which is characterized in that the Cu-Fe deformation in-situ composite material in the method is finally prepared into a formed copper material through technical process flows of material proportioning, smelting, casting or continuous casting, magnetic field control solidification, hot forging or hot milling, solid solution treatment, cold milling, cold pulling and magnetic field ageing control. The magnetic field is exerted in the ingot casting solidification process, the solidification of the Cu-Fe deformation in-situ composite material is controlled, Fe dendritic crystals carry out extremely obvious thinning, and the Fe aliquation is reduced, so the material disperses and distributes the uniform and fine Fe fiber phase in a base body after the subsequent cold deformation processing, and the intensity of the material is greatly improved. The magnetic field is exerted in the ageing process treatment process for promoting the Fe separation, increasing the separation amount of Fe particles, reducing the separation phase dimension and promoting the separation phase dispersion distribution, so the conductivity of the material is greatly improved, and the intensity of the material is further improved. The preparation process is simple, and the cost is low. The invention is applicable to the preparation of the high-performance Cu-Fe deformation in-situ composite material or other similar materials.

Description

technical field [0001] The invention relates to a method for preparing Cu-Fe deformation in-situ composite material by using magnetic field treatment, which belongs to the technical field of non-ferrous metal materials. Background technique [0002] High-strength and high-conductivity copper alloy materials are structural functional materials with excellent comprehensive physical and mechanical properties, and are widely used in electronics, information, transportation, energy, metallurgy, electromechanical and other fields. With the development of science and technology and modern industry, higher requirements are put forward for the performance of copper and copper alloys. In the manufacture of large-scale integrated circuit lead frames, electrified railway contact wires, high-intensity magnetic field coils, high-voltage switch springs, microwave tubes, and components of aerospace vehicles, materials are required to maintain excellent electrical conductivity and have highe...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C1/02C22F3/02C22F1/08B21B37/16
Inventor 陆德平陆磊陈志宝邹晋刘克明康林萍付清峰万珍珍
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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