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Furnace braze welding process of 6063 aluminum alloy micro-channel cooling plate

A process method and aluminum alloy technology, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve problems affecting the heat dissipation performance of cold plates and blocking microchannels, etc., and achieve low production costs, high production efficiency, and strong operability Effect

Active Publication Date: 2007-08-08
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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Problems solved by technology

However, there is such a problem in vacuum aluminum brazing. Due to the excellent vacuum brazing properties of 6063 aluminum alloy, during the brazing process, the brazing material near the microchannel weld can easily flow into the microchannel, thereby blocking the microchannel and affecting cooling. Thermal performance of the board

Method used

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  • Furnace braze welding process of 6063 aluminum alloy micro-channel cooling plate

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Embodiment Construction

[0010] The brazing process of the 6063 aluminum alloy microchannel cold brazing using Noclock non-corrosion flux furnace brazing according to the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0011] a) Use 0.3mm 3A21 aluminum alloy material as the brazing transition material in the brazing seam, and 0.1mm Al-Si eutectic solder.

[0012] b) Clean the parts to be welded, the transition material, and the solder, and brush the Noclock non-corrosive flux on the surface of the weld, the transition material, and the solder.

[0013] C) On the weld steps around the bottom plate 2 and at the end of the partition, place the prepared brazing filler metal, transition material, and brazing filler metal in sequence, cover the cover plate 1, and put it into the welding fixture.

[0014] d) Raise the temperature of the furnace to 640-650°C, open the furnace cover, hoist the workpiece loaded into the fixture into the furnace, ...

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Abstract

The braze welding of 6063 aluminum alloy uses traditional Nooclock non-corrosive braze agent protecting the channel cold plate, adding a layer of pure aluminum or 3A21 aluminum alloy into the welding seam. It is low in cost, high in efficiency, simple in process with low operation requirement.

Description

technical field [0001] The invention relates to a furnace brazing process method for a 6063 aluminum alloy microchannel cold plate. Background technique [0002] The micro-channel cold plate is composed of tiny channels of 0.1-0.6mm. The material is 6063 aluminum alloy with high strength, high thermal conductivity and brazable. It needs to be welded into a sealed cavity by brazing method. It is a kind of Efficient heat dissipation cold plate. [0003] According to the brazing characteristics of 6063 aluminum alloy, it is suitable for vacuum aluminum brazing. However, there is such a problem in vacuum aluminum brazing. Due to the excellent vacuum brazing properties of 6063 aluminum alloy, during the brazing process, the brazing material near the microchannel weld can easily flow into the microchannel, thereby blocking the microchannel and affecting cooling. thermal performance of the board. Contents of the invention [0004] The purpose of this invention is to provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/20B23K1/14B23K1/19
Inventor 赵仁祥
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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