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Sapphire reinforced aluminum alloy motor shell for electric automobile and preparation method of sapphire reinforced aluminum alloy motor shell

A motor housing and electric vehicle technology, applied in electric vehicles, manufacturing motor generators, motors, etc., can solve problems such as high cost and complex mold design, and achieve the goals of improving density, stable processing quality, and reducing defect rate Effect

Active Publication Date: 2022-03-11
IKD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the mold design is complicated and the cost is high

Method used

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  • Sapphire reinforced aluminum alloy motor shell for electric automobile and preparation method of sapphire reinforced aluminum alloy motor shell
  • Sapphire reinforced aluminum alloy motor shell for electric automobile and preparation method of sapphire reinforced aluminum alloy motor shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the sapphire reinforced aluminum alloy motor casing for electric vehicles is composed of sapphire whiskers 4 coated with aluminum alloy film, sapphire fiber 2 coated with aluminum alloy film, nano-sapphire powder 3 coated with aluminum alloy film and aluminum alloy substrate 1 through the reinforcement process. The material is printed and prepared.

[0038] Such as figure 2 As shown, the sapphire reinforced aluminum alloy motor housing for electric vehicles is prepared by the following steps;

[0039] Step 1, mixing sapphire whiskers, sapphire fibers and nano-sapphire powder to obtain a multi-scale sapphire mixture.

[0040] The sapphire whiskers are 0.5-1 micron in length and 0.1-0.3 micron in diameter; the sapphire fibers are 5-30 micron in length and 1-5 micron in diameter; the nano-sapphire powder has a diameter of 50-500 nanometers.

[0041] Step 2: Use vacuum coating to coat the surface of the multi-scale sapphire mixture to obtain a...

Embodiment 2

[0066] In this embodiment, on the basis of the first embodiment, some process parameters for preparing the sapphire-reinforced aluminum alloy motor housing for electric vehicles are adjusted. Only the parameters for the different parts will be adjusted below, and the others that are the same as those in the first embodiment will not be repeated. stated.

[0067] The sapphire reinforced aluminum alloy motor housing for electric vehicles is prepared by the following method;

[0068] Step 1, mixing sapphire whiskers, sapphire fibers and nano-sapphire powder to obtain a multi-scale sapphire mixture.

[0069] The sapphire whiskers are 0.5-1 micron in length and 0.1-0.3 micron in diameter; the sapphire fibers are 5-30 micron in length and 1-5 micron in diameter; the nano-sapphire powder has a diameter of 50-500 nanometers.

[0070] Step 2: Use vacuum coating to coat the surface of the multi-scale sapphire mixture to obtain a multi-scale aluminum alloy coating composed of sapphire w...

Embodiment 3

[0076] In this embodiment, on the basis of the first embodiment, some process parameters for preparing the sapphire-reinforced aluminum alloy motor housing for electric vehicles are adjusted. Only the parameters for the different parts will be adjusted below, and the others that are the same as those in the first embodiment will not be repeated. stated.

[0077] The sapphire reinforced aluminum alloy motor housing for electric vehicles is prepared by the following method;

[0078] Step 1, mixing sapphire whiskers, sapphire fibers and nano-sapphire powder to obtain a multi-scale sapphire mixture.

[0079] The sapphire whiskers are 0.5-1 micron in length and 0.1-0.3 micron in diameter; the sapphire fibers are 5-30 micron in length and 1-5 micron in diameter; the nano-sapphire powder has a diameter of 50-500 nanometers.

[0080] Step 2: Use vacuum coating to coat the surface of the multi-scale sapphire mixture to obtain a multi-scale aluminum alloy coating composed of sapphire w...

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Abstract

The invention discloses a sapphire reinforced aluminum alloy motor shell for an electric vehicle and a preparation method, aluminum alloy is doped with a multi-scale sapphire material, and the multi-scale sapphire material mainly comprises sapphire whiskers, sapphire fibers and sapphire nano powder. The sapphire reinforced aluminum alloy motor shell for the electric automobile is directly prepared by fully utilizing vacuum coating and additive manufacturing technologies; the surface of the sapphire is modified, so that good metallurgical bonding is formed between the sapphire and the aluminum alloy, obvious gaps and defects do not exist, the problems of poor interface bonding force and the like of the aluminum alloy enhanced by a single ceramic material at present can be well solved, and the service life and the adaptability of the aluminum alloy motor shell are greatly prolonged and improved.

Description

technical field [0001] The invention relates to the technical field of motor casings for electric vehicles, in particular to a sapphire-reinforced aluminum alloy motor casing for electric vehicles and a preparation method thereof. Background technique [0002] In recent years, the number of pure electric vehicles in my country has increased rapidly, which has gradually become the trend of future development. Among the influencing factors restricting the development of pure electric vehicles, the increase in vehicle quality will have a greater impact on power and fuel economy. As an indispensable part in the drive system of electric vehicles, the electric motor has a relatively complex structure and generally large mass. According to data, if the curb quality of the car is reduced by one tenth, the cruising range of pure electric vehicles will be increased by 10% to 20%. Lightweight is regarded as the most economical and effective means to achieve energy saving and emission...

Claims

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Application Information

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IPC IPC(8): H02K5/02H02K15/14C22C47/14C22C49/06C22C49/14C22C47/04C25D11/04B22F10/20B22F10/366B22F10/62B33Y10/00B33Y70/10B33Y40/20B33Y80/00C22C101/04
CPCH02K5/02H02K15/14C22C47/14C22C49/06C22C49/14C22C47/04C25D11/026C25D11/04B22F10/20B22F10/366B22F10/62B33Y10/00B33Y70/10B33Y40/20B33Y80/00Y02P10/25Y02T10/64
Inventor 李建军范鹏朱恩光
Owner IKD CO LTD
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