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Method for using copper-iron alloy material for motor rotor

A technology of copper-iron alloy and motor rotor, which is applied in the direction of electrical components, magnetic field/electric field shielding, etc., can solve the problems of reducing the conductivity and permeability of the alloy, increasing the starting current of the motor rotor, and reducing the performance of the motor, so as to reduce segregation, The effect of increasing the electromagnetic shielding performance of the alloy and increasing the cooling rate

Active Publication Date: 2021-04-09
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the increase of Fe content in the existing copper-iron alloy materials, the alloy easily forms a severely segregated structure during the solidification process, resulting in uneven distribution of the iron phase in the copper-iron alloy, reducing the electrical conductivity and magnetic permeability of the alloy, and causing the starting current of the motor rotor increase, the starting torque is small, which reduces the performance of the motor, and also causes unnecessary waste of energy

Method used

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  • Method for using copper-iron alloy material for motor rotor
  • Method for using copper-iron alloy material for motor rotor
  • Method for using copper-iron alloy material for motor rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 As shown, a method for using a copper-iron alloy material for a motor rotor mainly includes the following steps:

[0035] (1) Ingredients

[0036]The chemical composition of Cu-Fe alloy and its weight percentage are: 93% copper, 0.95% silicon, 0.8% manganese, 0.07% phosphorus, 0.04% silver, 0.02% sulfur, 0.02% aluminum, 0.1% carbon, 5% iron, wherein , Cu adopts electrolytic copper plate, iron adopts industrial pure iron, silicon adopts ferrosilicon, and manganese adopts ferromanganese;

[0037] (2) Vacuum induction melting

[0038] The electrolytic copper plate of the above-mentioned weight percentage is loaded into a vacuum induction furnace, and vacuumized. After the electrolytic copper plate is melted, ferromanganese is added to the vacuum induction furnace for deoxidation, and then industrial pure iron and ferrosilicon are added to the vacuum induction furnace respectively, and heated. The temperature is raised to 1500 °C for smelting, and then rare...

Embodiment 2

[0046] like figure 1 As shown, a method for using a copper-iron alloy material for a motor rotor mainly includes the following steps:

[0047] (1) Ingredients

[0048] The chemical composition of Cu-Fe alloy and its weight percentage are: 64% copper, 0.37% silicon, 0.5% manganese, 0.03% phosphorus, 0.02% silver, 0.015% sulfur, 0.015% aluminum, 0.05% carbon, 35% iron, wherein , Cu adopts electrolytic copper plate, iron adopts industrial pure iron, silicon adopts ferrosilicon, and manganese adopts ferromanganese;

[0049] (2) Vacuum induction melting

[0050] The electrolytic copper plate of the above-mentioned weight percentage is loaded into a vacuum induction furnace, and vacuumized. After the electrolytic copper plate is melted, ferromanganese is added to the vacuum induction furnace for deoxidation, and then industrial pure iron and ferrosilicon are added to the vacuum induction furnace respectively, and heated. The temperature is raised to 1600°C for smelting, and then ...

Embodiment 3

[0058] like figure 1 As shown, a method for using a copper-iron alloy material for a motor rotor mainly includes the following steps:

[0059] (1) Ingredients

[0060] The chemical composition of Cu-Fe alloy and its weight percentage are: 49% copper, 0.31% silicon, 0.5% manganese, 0.03% phosphorus, 0.02% silver, 0.02% sulfur, 0.02% aluminum, 0.1% carbon, 50% iron, wherein , Cu adopts electrolytic copper plate, iron adopts industrial pure iron, silicon adopts ferrosilicon, and manganese adopts ferromanganese;

[0061] (2) Vacuum induction melting

[0062] The electrolytic copper plate of the above-mentioned weight percentage is loaded into a vacuum induction furnace, and vacuumized. After the electrolytic copper plate is melted, ferromanganese is added to the vacuum induction furnace for deoxidation, and then industrial pure iron and ferrosilicon are added to the vacuum induction furnace respectively, and heated. The temperature is raised to 1800°C for smelting, and then rar...

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Abstract

The invention discloses a method for using a copper-iron alloy material for a motor rotor, and belongs to the technical field of nonferrous metal material manufacture. It mainly includes the following steps: (1) batching; (2) vacuum induction melting; (3) mechanical centrifugal atomization; (4) discharge plasma sintering; (5) aging treatment; the present invention selects high-purity Cu and Fe raw materials, And the added silver has good electrical conductivity. At the same time, the solid solubility of iron, silicon and copper is small, which has little effect on the electrical and thermal conductivity of the copper rod, and its solid solubility will not change with the change of temperature. Therefore, The alloy composed of Cu and Fe has high electrical conductivity; the Cu-Fe alloy is atomized into droplets by means of mechanical centrifugal atomization, and the atomized droplets are rapidly condensed by low-temperature high-purity argon, which can increase the density of the alloy droplets. The cooling rate can overcome the macro-segregation of the alloy, and further increase the electromagnetic shielding performance of the alloy.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal material manufacturing, and in particular relates to a method for a copper-iron alloy material for a motor rotor. Background technique [0002] With the rapid development of the economy, human beings are increasingly dependent on energy, and the demand for energy is also increasing. Therefore, there are also some unavoidable problems for human beings, such as energy waste, resource shortage and environmental pollution and many other problems. , a serious threat to the survival and development of human beings. At present, my country's industrial energy consumption accounts for about 70% of the total energy consumption, while the energy consumption caused by motors accounts for about 60-70% of the total industrial energy consumption, plus some other non-industrial motor energy consumption, The actual energy consumption of the motor accounts for more than 50% of the total energy consumption...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/04C22C9/00C22C33/02C22C38/02C22C38/04C22C38/16C22F1/08B22F3/105B22F9/10C21D6/00H05K9/00
CPCB22F3/105B22F9/10B22F2003/1051C21D6/005C21D6/008C22C1/0425C22C9/00C22C33/0278C22C38/02C22C38/04C22C38/16C22F1/08H05K9/0081
Inventor 武旭红王文斌王小军周斌梁建斌张石松
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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