Cu-fe-ag-re magnetic copper alloy for energy-saving motor rotor and preparation method thereof

Abstract

The invention discloses a novel Cu-Fe-Ag-RE magnetic copper alloy for an energy-saving motor rotor. The magnetic copper alloy comprises the following chemical components in percentages by weight: 5-90% of Fe, 0.01-1.5% of Ag, 0.05-0.15% of RE and the balance of Cu. The method comprises the following steps: step one, proportioning; step two, smelting; and step three, casting. The alloy prepared bythe invention has the advantages of low cost, easiness in smelting and better strength and plasticity. The novel Cu-Fe-Ag-RE magnetic copper alloy has good electrical conductivity and magnetic conductivity, the starting torque in a starting process of a motor can be improved, the starting current is reduced, the performance of the motor is improved, and purposes of saving energy, reducing consumption and improving the energy utilization rate are achieved.

Description

technical field

[0001] The invention relates to the technical field of motor rotor material manufacturing, in particular to a novel Cu-Fe-Ag-RE magnetic copper alloy for energy-saving motor rotors and a preparation method thereof. Background technique

[0002] The motor is a system that converts the electrical energy absorbed from the electrical system to the mechanical energy output to the mechanical system based on the principle of electromagnetic induction. As the prime mover, the motor has become the main source of power for human life and production. In my country, its power consumption is as high as the total More than 60% of the electricity, especially small asynchronous motors consume the most energy. The advantages of asynchronous traction motors are simple structure, stable performance, convenient maintenance, cheap price, and simple manufacturing process, so asynchronous motors have been most widely used in industry.

[0003] Asynchronous motors are further divide...

Examples

Embodiment 1

[0033] Embodiment 1: A kind of preparation method of Cu-Fe-Ag-RE magnetic copper alloy for new energy-saving motor rotor, comprises the following steps:

[0034] Step 1: Ingredients

[0035] According to the material composition requirements of Fe: 5%, Ag: 0.15%, RE: 0.08%, and Cu: the balance, select and weigh the corresponding raw materials for the ratio of each alloy element; among them, Cu is added by electrolytic copper plate, and Fe is added by industrial Pure iron is added, Ag is added by chemical silver particles, and RE is added by La-Ce alloy;

[0036] Step 2: Smelting

[0037] Use non-vacuum intermediate frequency induction furnace for smelting, first add industrial pure iron, after the industrial pure iron melts, add electrolytic copper and keep it at 1300 ° C for 30 minutes, use quartz glass tube to stir evenly, then add silver particles and RE; after degassing and refining , and finally use charcoal to cover and keep warm for 30 minutes to prepare for casting; ...

Embodiment 2

[0041] Example 2: The difference from Example 1 is that the Cu-Fe-Ag-RE ingot obtained in step 3 is heated to 900°C for hot extrusion, and then the hot-extruded profile is cold drawn, and the cold deformation 50%; then carry out aging treatment, the aging treatment temperature is 400°C, and the holding time is 3 hours.

[0042] The material prepared by the above method has a conductivity of 65% IACS, a strength of 685MPa, and a certain magnetic permeability.

Embodiment 3

[0043] Embodiment 3: A kind of preparation method of Cu-Fe-Ag-RE magnetic copper alloy for new energy-saving motor rotor, comprises the following steps:

[0044] Step 1: Ingredients

[0045] According to the material composition requirements of Fe: 10%, Ag: 0.25%, RE: 0.08%, and Cu: the balance, select and weigh the corresponding raw materials for the ratio of each alloy element; among them, Cu is added by electrolytic copper plate, and Fe is added by industrial Pure iron is added, Ag is added by chemical silver particles, and RE is added by La-Ce alloy;

[0046] Step 2: Smelting

[0047] Use non-vacuum intermediate frequency induction furnace for smelting, first add industrial pure iron, after the industrial pure iron melts, add electrolytic copper and keep it at 1300 ° C for 30 minutes, use quartz glass tube to stir evenly, then add silver particles and RE; after degassing and refining , and finally use charcoal to cover and keep warm for 30 minutes to prepare for casting;...

technical field

[0001] The invention relates to the technical field of motor rotor material manufacturing, in particular to a novel Cu-Fe-Ag-RE magnetic copper alloy for energy-saving motor rotors and a preparation method thereof. Background technique

[0002] The motor is a system that converts the electrical energy absorbed from the electrical system to the mechanical energy output to the mechanical system based on the principle of electromagnetic induction. As the prime mover, the motor has become the main source of power for human life and production. In my country, its power consumption is as high as the total More than 60% of the electricity, especially small asynchronous motors consume the most energy. The advantages of asynchronous traction motors are simple structure, stable performance, convenient maintenance, cheap price, and simple manufacturing process, so asynchronous motors have been most widely used in industry.

[0003] Asynchronous motors are further divide...

Examples

Embodiment 1

[0033] Embodiment 1: A kind of preparation method of Cu-Fe-Ag-RE magnetic copper alloy for new energy-saving motor rotor, comprises the following steps:

[0034] Step 1: Ingredients

[0035] According to the material composition requirements of Fe: 5%, Ag: 0.15%, RE: 0.08%, and Cu: the balance, select and weigh the corresponding raw materials for the ratio of each alloy element; among them, Cu is added by electrolytic copper plate, and Fe is added by industrial Pure iron is added, Ag is added by chemical silver particles, and RE is added by La-Ce alloy;

[0036] Step 2: Smelting

[0037] Use non-vacuum intermediate frequency induction furnace for smelting, first add industrial pure iron, after the industrial pure iron melts, add electrolytic copper and keep it at 1300 ° C for 30 minutes, use quartz glass tube to stir evenly, then add silver particles and RE; after degassing and refining , and finally use charcoal to cover and keep warm for 30 minutes to prepare for casting; ...

Embodiment 2

[0041] Example 2: The difference from Example 1 is that the Cu-Fe-Ag-RE ingot obtained in step 3 is heated to 900°C for hot extrusion, and then the hot-extruded profile is cold drawn, and the cold deformation 50%; then carry out aging treatment, the aging treatment temperature is 400°C, and the holding time is 3 hours.

[0042] The material prepared by the above method has a conductivity of 65% IACS, a strength of 685MPa, and a certain magnetic permeability.

Embodiment 3

[0043] Embodiment 3: A kind of preparation method of Cu-Fe-Ag-RE magnetic copper alloy for new energy-saving motor rotor, comprises the following steps:

[0044] Step 1: Ingredients

[0045] According to the material composition requirements of Fe: 10%, Ag: 0.25%, RE: 0.08%, and Cu: the balance, select and weigh the corresponding raw materials for the ratio of each alloy element; among them, Cu is added by electrolytic copper plate, and Fe is added by industrial Pure iron is added, Ag is added by chemical silver particles, and RE is added by La-Ce alloy;

[0046] Step 2: Smelting

[0047] Use non-vacuum intermediate frequency induction furnace for smelting, first add industrial pure iron, after the industrial pure iron melts, add electrolytic copper and keep it at 1300 ° C for 30 minutes, use quartz glass tube to stir evenly, then add silver particles and RE; after degassing and refining , and finally use charcoal to cover and keep warm for 30 minutes to prepare for casting;...

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