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Rare earth copper alloy and its preparation method

A rare earth copper and alloy technology, applied in the field of rare earth copper alloy and its preparation, can solve the problem of high cost, achieve the effects of high softening resistance, ensure product quality and large economic benefits

Inactive Publication Date: 2006-02-08
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN1231343 relates to a Cu-Cr-Y copper-based alloy electrode material and its preparation method, which belongs to the alloy conductive material, which mainly uses powder metallurgy to prepare the material, and the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A rare-earth copper alloy, composed by weight percentage: 0.13% cerium, 0.15% silver, 0.09% zirconium, the rest is copper and impurity elements, and its preparation method is as follows:

[0033] (1) Smelting: Electrolytic copper, zirconium, silver, and cerium are used. The order of addition is to first add electrolytic copper by weight percentage, smelt for 20 minutes, and then add 0.13% by weight of cerium, 0.015% of silver, and 0.09% of zirconium , cast after 1.5 minutes of melting;

[0034] (2) Hot forging: heat the above cast alloy at 800°C for 2 hours, then forge it on a conventional air hammer to form a bar, and the forging deformation is 80%;

[0035] (3) Solution treatment: put the rod into a heat treatment furnace, keep it warm at 950°C for 35 minutes, so that the alloy elements can be fully dissolved into the copper matrix, and then perform quenching treatment;

[0036] (4) cold drawing: the quenched alloy is subjected to 36% deformation treatment;

[0037]...

Embodiment 2

[0041] A rare-earth copper alloy, composed by weight percentage: 0.08% iridium, 0.08% silver, 0.03% zirconium, the rest is copper and impurity elements, and its preparation method is as follows:

[0042] (1) Smelting: Electrolytic copper, zirconium, silver, and iridium are used, and the order of addition is to first add electrolytic copper by weight percentage, smelt for 22 minutes, and then add 0.08% iridium by weight, 0.08% silver, and 0.03% zirconium , cast after 2 minutes of melting;

[0043] (2) Hot forging: the above-mentioned casting alloy is kept at 820° C. for 3 hours, and then forged on a conventional air hammer to form a bar, with a forging deformation of 75%;

[0044] (3) Solution treatment: put the bar into a heat treatment furnace, keep it warm at 820°C for 45 minutes, so that the alloy elements can be fully dissolved into the copper matrix, and then perform quenching treatment;

[0045] (4) cold drawing: the quenched alloy is subjected to 75% deformation treatm...

Embodiment 3

[0050] A rare earth copper alloy is composed of 0.03% lanthanum, 0.04% silver, 0.06% zirconium, and the rest are copper and impurity elements by weight percentage. Its preparation method is as follows:

[0051] (1) Smelting: Electrolytic copper, zirconium, silver, and lanthanum are used. The order of addition is to first add electrolytic copper by weight percentage, smelt for 24 minutes, and then add 0.03% by weight of lanthanum, 0.04% of silver, and 0.06% of zirconium , cast after smelting for 3 minutes;

[0052] (2) hot forging: the above-mentioned casting alloy is kept at 830° C. for 3 hours, and then forged on a conventional air hammer to form a bar, with a forging deformation of 55%;

[0053] (3) Solution treatment: put the rod into a heat treatment furnace, keep it warm at 880°C for 60 minutes, so that the alloy elements can be fully dissolved into the copper matrix, and then perform quenching treatment;

[0054] (4) cold drawing: the quenched alloy is subjected to 80% ...

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Abstract

The invention discloses a rare earth copper alloy and its preparation method, which comprises charging electrolytic copper by weight percentage, smelting 20-30 minutes, then charging 0.03-0.1% of zirconium, 0.02-0.16% of silver, 0.02-0.155 of rare-earth elements, smelting 1-3 minutes and casting, subjecting the cast alloy to heat preservation 1-4 hours at 800-850 deg C, forming bar stock through processing, the forging deformation amount is 50-80%, loading the bar stock into heat treatment furnace, thermally insulating 30-60 minutes at 800-950 deg C, then carrying out quenching treatment, subjecting the quenched alloy to 30-80% deformation treatment, cold drawing the alloy, thermally insulating 1-8 hours at 440-520 deg C, carrying out 50-70% deformation treatment to the alloy undergone ageing treatment. The invention can achieve high-strength and high conductivity.

Description

technical field [0001] The invention relates to a copper-based alloy and its preparation technology, in particular to a rare earth copper alloy and its preparation method. Background technique [0002] Copper and its alloys have been widely used in the fields of electronics, electricity, machinery, and aerospace due to their good electrical and thermal conductivity, corrosion resistance, strength, fatigue properties, and ease of preparation, and have become important electronic metal materials. For copper alloy materials, it has always been the goal to have both high strength and high conductivity. However, for copper alloys, high strength and high conductivity are a pair of contradictory characteristics. [0003] At present, countries around the world are actively developing high-strength and high-conductivity copper alloys, such as C18040 (Cu-0.3Cr-0.25Sn-0.5Zn) and (Cu-0.3Cr-0.1Zr-0.05Mg-0.02Si), and have applied for many patents. , such as: US1658186, 1778668, 2185958, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C22F1/08
Inventor 刘平贾淑果任凤章刘勇田保红赵冬梅郑茂盛
Owner HENAN UNIV OF SCI & TECH
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