Preparation method and application of an aluminum-based liquid-cooled heat dissipation structure

A liquid-cooled heat dissipation, aluminum-based technology, applied in cooling/ventilation/heating renovation, electrical equipment structural parts, electrical components, etc., can solve the problems of easy deformation and breakage, low strength, etc., achieve good heat dissipation capacity, and reduce preparation requirements , the effect of shortening the preparation cycle

Active Publication Date: 2022-06-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problem that the existing traditional foam material has low strength and is easily deformed and broken under high vibration and impact conditions, and provides a preparation method and application of an aluminum-based liquid-cooled heat dissipation structure

Method used

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  • Preparation method and application of an aluminum-based liquid-cooled heat dissipation structure

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specific Embodiment approach 1

[0025] Embodiment 1: This embodiment is a preparation method of an aluminum-based liquid-cooled heat dissipation structure, which is carried out according to the following steps:

[0026] 1. Preparation of foam aluminum structure:

[0027] 1. Add flux, particle reinforcing phase and gas-forming agent to the aluminum-based powder, and stir evenly to obtain a preform powder;

[0028] The mass ratio of the aluminum-based powder to the flux is 1:(0.01-1); the mass ratio of the aluminum-based powder to the particle reinforcing phase is 1:(0.01-1); the aluminum-based powder and the The mass ratio of the gas generating agent is 1:(0.01~1);

[0029] ②. Put the preform powder into the hot-pressing sintering mold, and pre-sinter for 5min-10h under the protective gas atmosphere, the temperature is 200℃~500℃ and the pressure is below 1GPa, to obtain the hot-pressing structure after pre-sintering ;

[0030] 3. Under the protective gas atmosphere, the temperature is 500 ℃~1500 ℃ and the ...

specific Embodiment approach 2

[0041] Embodiment 2: This embodiment is different from Embodiment 1 in that: the particle size of the aluminum-based powder described in step 1 ① is 10 mesh to 1000 mesh; the aluminum-based powder described in step 1 ① is Al powder or Al-Si alloy powder; the flux described in step 1① is KBr or QJ201; the particle reinforcing phase described in step 1① is SiC, TiO 2 Or AlN; the gas-forming agent described in step 1 ① is TiH 2 or CaCO 3 . Others are the same as the first embodiment.

specific Embodiment approach 3

[0042] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the protective gas atmosphere described in step 1 ② and ③ is vacuum, air, high-purity Ar gas and Ar / H 2 mixed gas. Others are the same as in the first or second embodiment.

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Abstract

A preparation method and application of an aluminum-based liquid-cooled heat dissipation structure, which relate to a preparation method and application of a heat dissipation structure. The invention aims to solve the problem that the existing traditional foam material has low strength and is easily deformed and broken under high vibration and impact working conditions. Preparation method: 1. Preparation of foamed aluminum structure; 2. Injection of liquid-cooled matrix. Application: Aluminum-based liquid-cooled heat dissipation structure is used for heat dissipation of electronic circuit system or battery system. The invention is used for the preparation and application of an aluminum-based liquid-cooled heat dissipation structure.

Description

technical field [0001] The invention relates to a preparation method and application of a heat dissipation structure. Background technique [0002] With the development of the times, in the fields of aviation, aerospace, vehicles, etc., people begin to pay more and more attention to the importance of lightweight. For example, on a commercial airliner, the price of aviation fuel is more than ten times that of traditional automobile fuel, and every bit of weight reduction can save a lot of economic consumption. In the field of fighter jets, the benefits of weight reduction can significantly improve the maneuverability and speed of fighter jets, enhance their ability to carry bombs, and then enhance their survivability and combat effectiveness. In the aerospace field, the payload can be increased to achieve further breakthroughs in carrying capacity. Many structures in these fields often use lightweight materials to increase the payload, but simply changing the composition of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/20B22F1/12B22F3/14
CPCH05K7/20272B22F3/14
Inventor 亓钧雷刘柏深闫耀天曹健冯吉才
Owner HARBIN INST OF TECH
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