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Preparation method of fiber-reinforced Cu-Cr-Zr alloys

A technology of copper-chromium-zirconium and fiber, which is applied in the field of fiber-reinforced high-strength and high-conductivity copper-chromium-zirconium alloy preparation, which can solve complex problems and achieve the effect of simplifying fiber reinforcement, improving strength and shortening process steps

Inactive Publication Date: 2013-11-06
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current production and processing of copper-chromium-zirconium alloy wire adopts the traditional process of "melting-casting-heating-extrusion-air cooling-heating-solid solution-cold drawing-aging-cold drawing', which is relatively complicated.

Method used

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  • Preparation method of fiber-reinforced Cu-Cr-Zr alloys
  • Preparation method of fiber-reinforced Cu-Cr-Zr alloys

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Experimental program
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Effect test

Embodiment 1

[0031] The short-process energy-saving preparation method of fiber-reinforced high-strength and high-conductivity copper-chromium-zirconium alloy of the present invention comprises the following steps:

[0032] A. Vacuum melting

[0033] Put the copper and Cu-5%Cr master alloy directly into the vacuum furnace and heat it to above 1320°C. After the copper and Cu-5%Cr are completely dissolved, add sponge zirconium, let stand and dissolve;

[0034] B. Ingot

[0035] Casting the smelting liquid in molten state in step A into a casting mold to obtain an ingot;

[0036] C. heating

[0037] heating the ingot in step B, heating the ingot to 960-1000°C, and keeping it warm for 30min;

[0038] D. Water seal extrusion

[0039] The ingot in step C is water-sealed and extruded, the extrusion speed is 4mm / s, the overpressure is 42mm, and the extrusion force is 2300t;

[0040] E. cold drawn

[0041] Cold drawing of the ingot after water sealing extrusion;

[0042] F. Prescription

[...

Embodiment 2

[0048] The short-process energy-saving preparation method of fiber-reinforced high-strength and high-conductivity copper-chromium-zirconium alloy of the present invention comprises the following steps:

[0049] A. Vacuum melting

[0050] Add electrolytically refined copper with a purity of 99.96% and Cu-5% Cr master alloy directly into the vacuum furnace, heat to above 1860°C, after the copper and Cu-5% Cr are completely decomposed, add zirconium sponge, let stand and dissolve;

[0051] B. Ingot casting

[0052] Casting the smelting liquid in molten state in step A into a casting mold to obtain an ingot;

[0053] C. heating

[0054] The ingot in step B is heated by means of electromagnetic heating, first preheated for 5-10 minutes, and then heated for 1-2 minutes to heat the ingot to 960°C;

[0055] D. Water seal extrusion

[0056] Send the ingot in step C into the water-sealed tank at the die mouth for water-sealed extrusion, the extrusion speed is 4mm / s, the overpressure...

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Abstract

The invention discloses a preparation method of fiber-reinforced Cu-Cr-Zr alloys. The preparation method comprises the following steps: A, vacuum melting: directly adding copper and CU-5% Cr intermediate alloys into a vacuum furnace, heating to more than 1320 DEG C, adding sponge zirconium after copper and Cu-5% Cr are completely melted, standing and dissolving; B, ingot casting: casting a molten liquid in the molten state into a mold to obtain an ingot blank; C, heating: heating the above ingot blank to make the temperature of the ingot blank reach 960-1000 DEG C, and keeping warm for 30min; D, water seal extrusion: carrying out water seal extrusion on the above ingot blank; E, cold drawing: carrying out cold-drawing treatment on the ingot blank which has undergone water seal extrusion; F, aging: carrying out aging treatment on the ingot blank which has undergone cold drawing in the step E; and G, cold drawing: carrying out cold-drawing treatment on the ingot blank which has undergone aging treatment. The invention aims to provide the preparation method of the fiber-reinforced high-strength and high-conductivity Cu-Cr-Zr alloys which have advantages of simple technology, relatively low energy consumption, high tensile strength of the product and good conductivity.

Description

technical field [0001] The invention relates to a preparation method of a fiber-reinforced high-strength and high-conductivity copper-chromium-zirconium alloy. Background technique [0002] Copper-chromium-zirconium alloys are widely used in electrical, transportation and other industries due to their excellent properties of high strength and high conductivity. However, at present, the production and processing of copper-chromium-zirconium alloy wire adopts the traditional process of "melting-casting-heating-extrusion-air cooling-heating-solid solution-cold drawing-aging-cold drawing', which is relatively complicated. The new method reduces the process for the preparation and processing of materials, reduces the consumption of energy and labor, meets the national requirements for low-carbon energy conservation and environmental protection, and at the same time realizes the fiber reinforcement of the alloy and improves the tensile strength of the alloy. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08
Inventor 李强李雷黄国杰冀国良马彪木二珍
Owner HENAN POLYTECHNIC UNIV
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