A base for brazing aluminum alloy cold plate

A technology of aluminum alloy and cold plate, applied in the direction of welding equipment, metal processing equipment, welding/welding/cutting items, etc., to achieve the effect of avoiding mutual interference and small friction coefficient

Active Publication Date: 2021-05-07
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Description
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AI Technical Summary

Problems solved by technology

However, since the cold plate exerts a certain compressive force during welding, under the action of the compressive force, the friction between the bottom plate of the cold plate and the graphite base plate is relatively large, which will limit the deformation of the cold plate, and the larger the size of the cold plate Larger, the effect of this limitation is more obvious

Method used

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  • A base for brazing aluminum alloy cold plate
  • A base for brazing aluminum alloy cold plate

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 2 As shown, the grade of the aluminum alloy cold plate is 6063, which is composed of the lower bottom plate 2 with channel grooves and the upper cover plate 1 in the form of a flat plate, and the size of the aluminum alloy cold plate is 896×308×24mm. After the surface treatment of the aluminum alloy cold plate, brazing material is added to the welding surface 3, the upper cover plate 1 and the lower base plate 2 are positioned by positioning pins, placed on the base plate 4 and the support plate 5, and then placed in a stainless steel tooling frame and applied Reinforced tightness, using vacuum brazing welding. The method steps are as follows:

[0021] (1) Make graphite base plate 4 and support plate 5, and make 10 base plates 4, each with a size of 180×160×10mm (calculate the size of the junction according to the midline of the concave and c...

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Abstract

The invention relates to a base for brazing of an aluminum alloy cold plate, which is characterized in that: the base includes a base plate (4) and a support plate (5), and several base plates (4) are arranged at intervals on the support plate ( 5) above; when welding, place the upper cover plate (1) and lower base plate (2) of the aluminum alloy cold plate on the base, then put the stainless steel tooling frame and apply the tightening force, and then weld . The advantage of the present invention is that the overall technical path is to divide the base plate used in the traditional method of aluminum alloy cold plate brazing into parts, and design it into a form of multi-piece arrangement, so as to reduce the friction between the base plate and the lower bottom plate of the cold plate. The influence of welding can improve the quality of brazing.

Description

technical field [0001] The invention belongs to the technical field of avionics system manufacturing and relates to a base plate for brazing of an aluminum alloy cold plate. Background technique [0002] As the physical size of electronic equipment is getting smaller and smaller, the assembly density is getting higher and higher, and the working performance is getting stronger and stronger, resulting in increased heat generation of electronic equipment, and high temperature is extremely harmful to electronic products, which will make the electronic components inside electronic products Performance changes, causing various malfunctions. In the aerospace system, the performance of the electronic equipment determines the performance of the aircraft. In order to meet the complex combat needs of the contemporary era, the density of the avionics equipment is very high, and the heat dissipation is also very large. This puts forward more requirements for the cooling technology of av...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K3/08B23K1/008B23K103/10
CPCB23K1/008B23K3/08
Inventor 裴冲李思思张元伟任新宇
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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