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A kind of new energy vehicle motor rotor cast aluminum alloy and preparation method thereof

A technology for casting aluminum alloys and new energy vehicles. It is applied in the field of casting aluminum alloys for new energy vehicle motor rotors and its preparation. It can solve problems such as difficulty in synchronous performance improvement, and achieve the effects of increased strength, enhanced crystallization core, and enhanced precipitation strengthening effect.

Active Publication Date: 2022-07-15
SHANDONG BOYUAN PRECISION MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, parameters such as strength and elongation of aluminum alloys prepared by adding AlTiB additives still cannot meet the current needs. In order to minimize production and R&D costs, process adjustments are generally minimized, but in formula adjustments, the strength is often improved. However, parameters such as elongation and electrical conductivity are sacrificed, and it is difficult to improve the performance of all aspects simultaneously and are all within a good range.

Method used

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  • A kind of new energy vehicle motor rotor cast aluminum alloy and preparation method thereof
  • A kind of new energy vehicle motor rotor cast aluminum alloy and preparation method thereof
  • A kind of new energy vehicle motor rotor cast aluminum alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Example 1 Preparation of Aluminum Alloy 1#

[0024] The composition of aluminum alloy 1# is: titanium 0.05wt%, boron 0.05wt%, silicon 0.2wt%, iron 0.05wt%, copper 0.6wt%, magnesium 0.4wt%, zinc 0.1wt%, manganese 0.08wt%, and the rest are High-purity aluminum, high-purity aluminum is pure aluminum with a purity greater than 99.8%.

[0025] The preparation method is as follows: (1) melting the aluminum ingot at 720 DEG C, adding each element component, and stirring evenly;

[0026] (2) The rotor cavity was preheated to 700°C, and the motor rotor cast aluminum alloy 1# was prepared by conventional centrifugal casting process.

Embodiment 2

[0027] The preparation of embodiment 2 aluminum alloy 2#

[0028] The composition of aluminum alloy 2# is: titanium 0.05wt%, boron 0.04wt%, silicon 0.15wt%, iron 0.01wt%, copper 0.5wt%, magnesium 0.3wt%, zinc 0.05wt%, manganese 0.02wt%, and the rest are High-purity aluminum, high-purity aluminum is pure aluminum with a purity greater than 99.8%.

[0029] The preparation method is as follows: (1) melting the aluminum ingot at 700 DEG C, adding each element component, and stirring evenly;

[0030] (2) The rotor cavity was preheated to 680°C, and the motor rotor cast aluminum alloy 2# was obtained by conventional centrifugal casting process.

Embodiment 3

[0031] Example 3 Preparation of Aluminum Alloy 3#

[0032] The composition of aluminum alloy 3# is: titanium 0.06wt%, boron 0.06wt%, silicon 0.5wt%, iron 0.08wt%, copper 0.7wt%, magnesium 0.5wt%, zinc 0.2wt%, manganese 0.12wt%, and the rest are High-purity aluminum, high-purity aluminum is pure aluminum with a purity greater than 99.8%.

[0033] The preparation method is as follows: (1) melting the aluminum ingot at 760 DEG C, adding each element component, and stirring evenly;

[0034] (2) The rotor cavity was preheated to 720°C, and the motor rotor cast aluminum alloy 3# was obtained by the conventional centrifugal casting process.

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Abstract

The application discloses a new energy vehicle motor rotor cast aluminum alloy and a preparation method thereof, belonging to the technical field of new energy vehicle motors, including titanium 0.05wt%-0.06wt%, boron 0.04wt%-0.06wt%, silicon 0.15wt% ‑0.5wt%, Iron 0.01wt%‑0.08wt%, Copper 0.5wt%‑0.7wt%, Magnesium 0.3wt%‑0.5wt%, Zinc 0.01wt%‑0.2wt%, Manganese 0.02wt%‑0.12wt%, The rest is aluminum. By adding new elements and adjusting the ratio of each element, the strength of the cast aluminum alloy can be improved while maintaining excellent electrical conductivity.

Description

technical field [0001] The application relates to a new energy vehicle motor rotor cast aluminum alloy and a preparation method thereof, belonging to the technical field of new energy vehicle motors. Background technique [0002] With the intensification of the world's energy problems and environmental pollution problems, the development of new energy vehicles has gradually become the mainstream of modern car companies, and the motor rotors in new energy vehicles are generally made of pure aluminum casting, because aluminum has excellent electrical and thermal conductivity and low density. , in line with the requirements of lightweight. With the rapid development of new energy vehicles, the requirements for motor rotors are getting higher and higher. For example, cast aluminum alloys must have high strength and high elongation, and at the same time have good electrical conductivity. The requirements for parameters such as strength are updated and iteratively fast. Fast, a y...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/18C22C1/02
CPCC22C1/02C22C21/18
Inventor 赵培振郑金宇郑世育郑广会
Owner SHANDONG BOYUAN PRECISION MASCH CO LTD
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