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Al-Si-Fe series motor rotor alloy and preparation method and application thereof

An al-si-fe, motor rotor technology, applied in the field of new energy vehicle motor rotor materials, can solve the problems of rotor low-cycle fatigue, safety accidents, high harmonic components, etc., to improve high-temperature creep performance and strong operability , The effect of simple process

Active Publication Date: 2022-06-17
SHANDONG BOYUAN PRECISION MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Motors generally pursue positioning accuracy and torque output. The efficiency is relatively low, the current is generally relatively large, and the harmonic component is high. , it will cause low-cycle fatigue and creep loss of the rotor, and may even cause safety accidents

Method used

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  • Al-Si-Fe series motor rotor alloy and preparation method and application thereof
  • Al-Si-Fe series motor rotor alloy and preparation method and application thereof
  • Al-Si-Fe series motor rotor alloy and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An Al-Si-Fe-based motor rotor alloy, comprising the following components in mass percentage: Si: 0.4%, Fe: 0.2%, Cu: 0.5%, and the balance is Al.

[0029] The Al-Si-Fe series motor rotor alloy preparation method comprises the following steps:

[0030] (1) Add silicon-containing material, iron-containing material and aluminum-containing material to the melting furnace according to the composition ratio of the above-mentioned Al-Si-Fe-based motor rotor alloy, and smelt at 710° C. to obtain a molten liquid;

[0031] (2) Adding Cu element to the molten liquid in step (1), and then adding 1 wt% hexachloroethane of the melt mass to carry out melt refining treatment, the refining temperature is 720° C., and the treatment time is 30 minutes;

[0032] (3) Let the melt stand for more than 30 minutes, cast it at 720° C., and perform extrusion casting to obtain a casting;

[0033] (4) Carry out heat treatment to the casting in step (3), heat the casting to 500°C at a heating rate ...

Embodiment 2

[0035] An Al-Si-Fe-based motor rotor alloy, comprising the following components in mass percentage: Si: 0.2%, Fe: 0.3%, Cu: 0.8%, and the balance is Al.

[0036] The Al-Si-Fe series motor rotor alloy preparation method comprises the following steps:

[0037] (1) Add silicon-containing material, iron-containing material and aluminum-containing material to the melting furnace according to the composition ratio of the above-mentioned Al-Si-Fe-based motor rotor alloy, and smelt at 740°C to obtain a molten liquid;

[0038] (2) adding Cu element to the molten liquid in step (1), and then adding 0.5wt% nitrogen of the melt mass to carry out melt refining treatment, the refining temperature is 730° C., and the treatment time is 20 minutes;

[0039] (3) Let the melt stand for more than 30 minutes, cast it at 730° C., and perform extrusion casting to obtain a casting;

[0040] (4) Carry out heat treatment to the casting in step (3), heat the casting to 550°C at a heating rate of 200°C / ...

Embodiment 3

[0042] An Al-Si-Fe-based motor rotor alloy, comprising the following components in mass percentage: Si: 0.4%, Fe: 0.3%, Mg: 0.2%, and the balance is Al.

[0043] The Al-Si-Fe series motor rotor alloy preparation method comprises the following steps:

[0044] (1) Add silicon-containing material, iron-containing material and aluminum-containing material into the melting furnace according to the composition ratio of the above-mentioned Al-Si-Fe-based motor rotor alloy, and smelt at 750°C to obtain a molten liquid;

[0045] (2) Add Mg element to the molten liquid in step (1), and then add 0.8wt% argon to the melt mass to carry out melt refining treatment, the refining temperature is 740° C., and the treatment time is 20 minutes;

[0046] (3) Let the melt stand for more than 30 minutes, cast it at 720° C., and perform extrusion casting to obtain a casting;

[0047] (4) Carry out heat treatment to the casting in step (3), heat the casting to 500°C at a heating rate of 100°C / h, carr...

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Abstract

The invention discloses an Al-Si-Fe series motor rotor alloy and a preparation method and application thereof, and belongs to the technical field of new energy automobile motor rotor materials. The invention relates to an Al-Si-Fe series motor rotor alloy, which is characterized by comprising the following components in percentage by mass: 0.2 to 0.4 percent of Si, 0.1 to 0.3 percent of Fe, 0.2 to 1 percent of IIA or IB group elements and the balance of Al. The Al-Si-Fe series motor rotor alloy can effectively improve the high-temperature creep property of the new energy automobile motor rotor alloy, and has excellent conductivity and mechanical property.

Description

technical field [0001] The application relates to an Al-Si-Fe series motor rotor alloy and its preparation method and application, belonging to the technical field of new energy vehicle motor rotor materials. Background technique [0002] In recent years, the automobile industry has developed rapidly and has become an important part of my country's economic system. The proportion of new energy vehicles in the automotive industry is increasing, and the vigorous development of new energy vehicles has put forward higher requirements for the power and efficiency of vehicle motors. [0003] Motors generally pursue positioning accuracy and torque output. The efficiency is relatively low, the current is generally relatively large, and the harmonic component is high. , it will cause low-cycle fatigue and creep loss of the rotor, and may even cause safety accidents. Contents of the invention [0004] In order to solve the above problems, an Al-Si-Fe-based motor rotor alloy and it...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/08C22C21/14C22F1/00C22F1/05C22F1/057C22C21/00C22F1/04C22F1/043C22F1/047B22D18/02H02K15/02
CPCC22C21/02C22C21/08C22C21/14B22D18/02C22F1/002C22F1/057C22F1/05C22C21/00C22F1/04C22F1/043C22F1/047H02K15/02Y02T10/64
Inventor 郑广会赵培振郑世玉陆松
Owner SHANDONG BOYUAN PRECISION MASCH CO LTD