New energy automobile motor rotor casting 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 synchronously improving performance, and achieve the effects of increasing strength, strengthening crystallization cores, and increasing titanium content.

Active Publication Date: 2022-04-12
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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  • New energy automobile motor rotor casting aluminum alloy and preparation method thereof
  • New energy automobile motor rotor casting aluminum alloy and preparation method thereof
  • New energy automobile motor rotor casting aluminum alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The preparation of embodiment 1 aluminum alloy 1#

[0024] The composition of aluminum alloy 1# is: 0.05wt% of titanium, 0.05wt% of boron, 0.2wt% of silicon, 0.05wt% of iron, 0.6wt% of copper, 0.4wt% of magnesium, 0.1wt% of zinc, 0.08wt% of manganese, and the rest is 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°C, adding various element components, and stirring evenly;

[0026] (2) The rotor cavity is preheated to 700°C, and the motor rotor cast aluminum alloy 1# is manufactured 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%, the rest is 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°C, adding various element components, and stirring evenly;

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

Embodiment 3

[0031] The preparation of embodiment 3 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%, the rest is 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°C, adding various element components, and stirring evenly;

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

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Abstract

The invention discloses a new energy automobile motor rotor casting aluminum alloy and a preparation method thereof, and belongs to the technical field of new energy automobile motors, the new energy automobile motor rotor casting aluminum alloy comprises 0.05 wt%-0.06 wt% of titanium, 0.04 wt%-0.06 wt% of boron, 0.15 wt%-0.5 wt% of silicon, 0.01 wt%-0.08 wt% of iron, 0.5 wt%-0.7 wt% of copper, 0.3 wt%-0.5 wt% of magnesium, 0.01 wt%-0.2 wt% of zinc, 0.02 wt%-0.12 wt% of manganese, and the balance aluminum. By adding new elements and adjusting the proportion of all the elements, the strength of the cast aluminum alloy is improved, and meanwhile excellent conductivity can be kept.

Description

technical field [0001] The application relates to a cast aluminum alloy for a new energy automobile motor rotor and a preparation method thereof, belonging to the technical field of new energy automobile motors. Background technique [0002] With the intensification of world 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 cast with pure aluminum because aluminum has excellent electrical and thermal conductivity and low density. , meeting 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, high elongation, and good electrical conductivity. However, the update iteration speed of requirements for parameters such as strength is very fast. Fast, a year or even half...

Claims

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Application Information

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Patent Type & Authority Applications(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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