Method of copper and iron alloy materials for novel motor rotors

A motor rotor, copper-iron alloy technology, 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: 2019-11-22
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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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 of copper and iron alloy materials for novel motor rotors
  • Method of copper and iron alloy materials for novel motor rotors

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown, a kind of method for the copper-iron alloy material of novel motor rotor mainly comprises the following steps:

[0035] (1) Ingredients

[0036]The chemical composition and weight percentage of Cu-Fe alloy 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, of which , Cu uses electrolytic copper plate, iron uses industrial pure iron, silicon uses ferrosilicon, and manganese uses ferromanganese;

[0037] (2) Vacuum induction melting

[0038] Put the electrolytic copper plate with the above weight percentage into the vacuum induction furnace, vacuumize, after the electrolytic copper plate is melted, add ferromanganese into the vacuum induction furnace for deoxidation, then add industrial pure iron and ferrosilicon respectively into the vacuum induction furnace, heat Raise the temperature to 1500°C for smelting, then add rare earths La and Ce and perform electromagnet...

Embodiment 2

[0046] Such as figure 1 Shown, a kind of method for the copper-iron alloy material of novel motor rotor mainly comprises the following steps:

[0047] (1) Ingredients

[0048] The chemical composition and weight percentage of Cu-Fe alloy 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, of which , Cu uses electrolytic copper plate, iron uses industrial pure iron, silicon uses ferrosilicon, and manganese uses ferromanganese;

[0049] (2) Vacuum induction melting

[0050] Put the electrolytic copper plate with the above weight percentage into the vacuum induction furnace, vacuumize, after the electrolytic copper plate is melted, add ferromanganese into the vacuum induction furnace for deoxidation, then add industrial pure iron and ferrosilicon respectively into the vacuum induction furnace, heat Raise the temperature to 1600°C for smelting, then add rare earths La and Ce and carry out electr...

Embodiment 3

[0058] Such as figure 1 Shown, a kind of method for the copper-iron alloy material of novel motor rotor mainly comprises the following steps:

[0059] (1) Ingredients

[0060] The chemical composition and weight percentage of Cu-Fe alloy 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, of which , Cu uses electrolytic copper plate, iron uses industrial pure iron, silicon uses ferrosilicon, and manganese uses ferromanganese;

[0061] (2) Vacuum induction melting

[0062] Put the electrolytic copper plate with the above weight percentage into the vacuum induction furnace, vacuumize, after the electrolytic copper plate is melted, add ferromanganese into the vacuum induction furnace for deoxidation, then add industrial pure iron and ferrosilicon respectively into the vacuum induction furnace, heat Raise the temperature to 1800°C for smelting, then add rare earths La and Ce and carry out electroma...

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Abstract

The invention discloses a method of copper and iron alloy materials for novel motor rotors, and belongs to the technical field of nonferrous metal material manufacturing. The method mainly comprises the steps of (1) burdening, (2) vacuum induction smelting, (3) mechanical centrifugal atomization, (4) discharge plasma sintering and (5) aging. Cu and Fe raw materials with higher purity are selected,fed silver is excellent in electric conductivity, and meanwhile, iron, silicon and copper are lower in solid solubility, so that the influence on electricity and heat conductivity of copper rods is lower, the solid solubility cannot be changed along with the temperature change, and alloys formed by Cu and Fe achieve higher electric conductivity; and through the mechanical centrifugal atomizationmode, Cu-Fe alloys are atomized as drops, and the drops are quickly condensed through low-temperature and high-purity argon, so that the cooling speed of the alloy drops can be accelerated, the macroscopic segregation of the alloys is overcome, and the electromagnetic shielding performance of the alloys is further improved.

Description

technical field [0001] The invention belongs to the technical field of manufacturing non-ferrous metal materials, and in particular relates to a method for a novel 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, some inevitable human problems have emerged, such as energy waste, resource shortage, and environmental pollution. , a serious threat to human survival and development. 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. Reducing the energy consumption of the mot...

Claims

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Application Information

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Patent Type & Authority Applications(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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