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A kind of processing method of brazed soaking plate

A processing method and technology of soaking plate, applied in indirect heat exchangers, heat exchange equipment, heat exchanger shells, etc., can solve the problems of troublesome processing, heavy weight, high material and processing costs, and reduce the cost of materials and processing. The effect of cost, weight reduction, convenient processing method

Active Publication Date: 2021-02-05
常州恒创热管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of copper vapor chambers in the prior art, such as troublesome processing, complex process, high material and processing costs, and heavy weight, and propose a processing method for brazed vapor chambers. method

Method used

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  • A kind of processing method of brazed soaking plate
  • A kind of processing method of brazed soaking plate
  • A kind of processing method of brazed soaking plate

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Experimental program
Comparison scheme
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Embodiment 1

[0047] Please refer to image 3, in this embodiment, the two boards 1 are an aluminum board 11 and an aluminum-based composite board 12 , and the cladding layer 4 on the aluminum-based composite board 12 is located on the side close to the aluminum board 11 . The filler 2 is particulate matter, specifically copper powder and / or ceramic powder particles and / or hydrated aluminosilicate, the particle size of which is 25-100 mesh, and the matrix 3 in the aluminum matrix composite board 12 The melting point is 630-660°C, the melting point of the cladding layer 4 is 580-610°C, the melting point of the filler 2 in this embodiment is higher than 800°C, and the melting point of the cladding layer 4 is about 50°C lower than that of the substrate 3 . After the aluminum-based composite board 12 is stamped and the groove 5 is formed, the aluminum board 11 is placed above the aluminum-based composite board 12, the particles are put into the groove 5, and the aluminum board 11 and the alumin...

Embodiment 2

[0049] The difference between this embodiment and the first embodiment is that the filler 2 further includes an adhesive and / or a foaming agent, and the melting point of the particles is higher than the brazing temperature. Wherein the volume ratio of the binder and / or foaming agent to the filler 2 is 5-20%. After brazing, it is easier for the particles to cooperate with the adhesive and / or the foaming agent to form sintered particles attached to the inner surface of the closed cavity 6 , thereby forming the capillary structure 7 .

Embodiment 3

[0051] The difference between this embodiment and Embodiment 1 is that the filler 2 includes first particles and second particles, the melting point of the first particles is higher than the brazing temperature, and the melting point of the second particles is lower than the brazing temperature. soldering temperature. Specifically, the first particle is copper powder, alumina, silicon dioxide or a mixture thereof, the particle size of the first particle is 25-100 mesh, and the melting point is higher than 800°C. The second particle is an aluminum-silicon alloy particle, wherein the silicon content is 3-10%, the particle size of the second particle is 100-200 mesh, and the melting point is 580-620°C. The first particle and the second particle The volume ratio is 3:1-10:1. In this embodiment, the second particle with a smaller particle size and low melting point is mixed with the first particle with a larger particle size and a high melting point. After brazing, the second part...

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Abstract

The invention relates to the technical field of manufacturing of vapor chambers, and particularly discloses a processing method of a braze-welding type vapor chamber. The method comprises the following steps of 1, preparing materials, namely preparing two plate bodies and fillers, wherein at least one of the two plate bodies is an aluminum-based composite board; 2, bonding, namely bonding the twoplate bodies; 3, performing braze welding; and 4, filling a working medium. According to the processing method, at least one of the prepared two plate bodies is the aluminum-based composite board, wherein the aluminum-based composite plate comprises a base body and a coating layer, at least one of the two plate bodies is provided with a groove. After being subjected to bonding, braze welding and working medium filling, the two plate bodies are sealed to form a vapor chamber. In this way, the processing method is more convenient and high-efficiency, materials and processing cost are both reduced, and the weight of the vapor chamber is reduced as well.

Description

technical field [0001] The invention relates to the technical field of vapor chamber manufacturing, in particular to a processing method for a brazing type vapor chamber. Background technique [0002] The vapor chamber is a plate structure composed of two metal substrates, and there is a hollow airtight cavity between the two metal plates. The airtight cavity is in a negative pressure state, and the cavity is filled with a phase-change working medium, and a part of the cavity is also left. When working, the heat source transfers heat to the vapor chamber, and the liquid working medium in the closed cavity quickly evaporates into steam after being heated in a negative pressure environment, and quickly spreads to the entire closed cavity, passing through the surface of the vapor chamber or with the vapor chamber. The heat dissipation fins connected to the heat plate condense after heat dissipation, and the condensed liquid liquid flows back to the bottom for circulation to ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D15/04F28F9/18
CPCF28D15/046F28F9/18
Inventor 黄晓峰张尧范士刚
Owner 常州恒创热管理有限公司