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High-conductivity copper alloy rotor and preparation method thereof

A copper alloy, high electrical conductivity technology, applied in the field of high electrical conductivity copper alloy rotor and its preparation, can solve the problems of poor electrical conductivity, easy wear and service life, and achieve the effects of improving electrical conductivity, increasing strength, and reducing production costs

Active Publication Date: 2020-08-07
四川华芯腾科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a high-conductivity copper alloy rotor and a preparation method thereof. The preparation method has a simple process and can reduce production costs. The obtained high-conductivity copper alloy rotor has good conductivity, high-temperature hardness and stability, fully meets the requirements of use, prolongs the service life, and effectively solves the problems of poor conductivity, easy wear and short service life in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-conductivity copper alloy rotor comprises the following raw materials in weight percentage: 0.1% of chromium, 0.1% of zirconium, 0.02% of lithium, 0.02% of manganese and 0.01% of lanthanum, and the balance is copper.

[0024] The preparation method of the above-mentioned high-conductivity copper alloy rotor comprises the following steps:

[0025] (1) Put copper in a vacuum induction melting furnace, keep it warm at 1100°C for 5 minutes, then add copper-10wt% chromium master alloy, copper-10wt% zirconium master alloy, copper-10wt% lithium master alloy, BMn40-1.5 For the manganese-copper alloy, heat it up to 1250°C for 10 minutes, then add Cu20La copper-lanthanum master alloy, keep the temperature constant, and keep it for 5 minutes to obtain a copper alloy smelting solution;

[0026] (2) Die-cast the copper alloy smelting solution obtained in step (1) under a pressure of 70 MPa, then heat it at 800° C. for 20 minutes, and cool it to room temperature to obtain a ca...

Embodiment 2

[0029] A high-conductivity copper alloy rotor comprises the following raw materials in weight percentage: 0.9% of chromium, 0.2% of zirconium, 0.02% of lithium, 0.02% of manganese and 0.02% of cerium, and the balance is copper.

[0030] The preparation method of the above-mentioned high-conductivity copper alloy rotor comprises the following steps:

[0031] (1) Put copper in a vacuum induction melting furnace, keep it warm at 1150°C for 8 minutes, then add copper-10wt% chromium master alloy, copper-10wt% zirconium master alloy, copper-10wt% lithium master alloy, BMn40-1.5 For the manganese-copper alloy, heat it up to 1300°C for 20 minutes, and finally add Cu20Ce copper-cerium intermediate alloy, keep the temperature constant, and keep it for 8 minutes again to obtain a copper alloy smelting solution;

[0032] (2) Die-cast the copper alloy smelting solution obtained in step (1) under a pressure of 75 MPa, then heat it at 850° C. for 30 minutes, and cool it to room temperature t...

Embodiment 3

[0035] A high-conductivity copper alloy rotor, including the following raw materials in weight percentage: 1.2% chromium, 0.3% zirconium, 0.02% lithium, 0.02% manganese and 0.03% rare earth metal (lanthanum and cerium are mixed in a mass ratio of 1:1), and the balance is copper.

[0036] The preparation method of the above-mentioned high-conductivity copper alloy rotor comprises the following steps:

[0037] (1) Put copper in a vacuum induction melting furnace, keep it warm at 1200°C for 10 minutes, then add copper-10wt% chromium master alloy, copper-10wt% zirconium master alloy, copper-10wt% lithium master alloy, BMn40-1.5 For the manganese-copper alloy, heat it up to 1300°C for 25 minutes, and finally add Cu20La copper-lanthanum master alloy and Cu20Ce copper-cerium master alloy, keep the temperature constant, and keep the temperature for 8 minutes again to obtain a copper alloy smelting solution;

[0038] (2) Die-cast the copper alloy smelting solution obtained in step (1)...

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Abstract

The invention discloses a high-conductivity copper alloy rotor and a preparation method thereof. The high-conductivity copper alloy rotor is prepared from the raw materials in percentage by weight: 0.1-2% of chromium, 0.1-0.6% of zirconium, 0.02-0.03% of lithium, 0.02-0.03% of manganese, 0.01-0.05% of rare earth metals, and the balance of copper. The invention also discloses a preparation method for the high-conductivity copper alloy rotor. The preparation method has a simple process and can reduce production costs. The obtained high-conductivity copper alloy rotor has good electrical conductivity, high-temperature hardness and stability, fully meets the requirements of use, prolongs the service life, and effectively solves the problems of poor electrical conductivity, easy wear and shortservice life in the prior art.

Description

technical field [0001] The invention relates to the technical field of motor rotor preparation, in particular to a high-conductivity copper alloy rotor and a preparation method thereof. Background technique [0002] As an industrial device that converts electrical energy into work, the motor is widely used in industrial, agricultural and commercial fields. The motor generally includes a stator, a rotor, a casing, and electromagnetic winding wires. When the electronic rotor is running at high speed, it is easy to generate thermal stress and electromagnetic stress, and the rotor will soften as the temperature rises, so the rotor needs to have a certain strength and high temperature resistance. Although the rotor prepared by the existing method has certain conductivity, its conductivity still cannot meet the requirements of use, and its high-temperature hardness and stability are poor, and it is easy to wear and tear during operation, shortening the service life; the preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03B22D17/00C22F1/08C22F1/02H02K17/16H02K15/00
CPCC22C9/00C22C1/03B22D17/00C22F1/08C22F1/02H02K17/165H02K15/0012
Inventor 郑巧郑好郑好巧妙
Owner 四川华芯腾科技有限责任公司
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