Method for manufacturing vacuum brazing cooler

A manufacturing method and radiator technology are applied in the field of vacuum brazing aluminum or aluminum alloy radiators, which can solve the problems of high cost of aluminum-clad welding rods, high raw material costs, unsuitability for radiators, etc. The effect of low cost and high heat dissipation efficiency

Active Publication Date: 2014-08-06
ALNAN ALUMINIUM CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above aluminum or aluminum alloy manufacturing method are: 1. When several layers of strip-shaped blades are stacked with aluminum-clad electrodes, there will be a large error between the radiator layers, which is not suitable for radiators with strict dimensions; 2. Relying on fixture positioning, welding deformation is large, which affects the yield; 3. The cost of aluminum-clad electrodes is high, which is 2 to 3 times that of ordinary aluminum plates and aluminum materials, and the cost of raw materials is high

Method used

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  • Method for manufacturing vacuum brazing cooler
  • Method for manufacturing vacuum brazing cooler
  • Method for manufacturing vacuum brazing cooler

Examples

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Embodiment 1

[0031] The production process of a company's photovoltaic inverter vacuum brazing radiator.

[0032] (1) Melting and casting refining: put aluminum ingots into the melting furnace for smelting, and use online degassing to remove low-melting point light metals and non-metallic impurities, and use 1060 grade aluminum alloy to cast rods;

[0033] (2) Extrusion: the blades are extruded profiles, and the whole radiator is composed of three extruded profiles;

[0034] (3) Sawing: cutting the extruded profile into a certain length of aluminum substrate;

[0035] (4) Machining: The sawn aluminum base material is sequentially processed by shaping, stamping and other machining, and used as the blade of the radiator;

[0036] (5) Lamination: The processed aluminum blades are laminated and assembled, and the two ends of the aluminum blades are embedded with brazing material (brazing film) and then clamped with clamps;

[0037] (6) Vacuum brazing: Vacuum brazing of the workpiece clamped ...

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Abstract

The invention relates to a method for manufacturing a vacuum brazing cooler. The method is characterized by omitting the process that aluminum wrapped welding rods are arranged among aluminum or aluminum alloy sheets to perform separation, and forming aluminum profile or aluminum plate materials with two ends provided with matched bosses and grooves through extrusion or stamping; stacking the aluminum profile or aluminum plate materials in pieces to form a cooler blank, embedding thin films in two ends among the stacked materials, clamping the brazing thin films, and performing vacuum brazing on the clamped workpieces to form a closed body of the cooler; performing face milling, hole drilling, tapping, nut screwing and detection to obtain the cooler product. By means of the method, the obtained vacuum brazing cooler is compact in structure, high in cooling efficiency and yield, low in comprehensive cost and suitable for cooling high-power frequency converters and inverters.

Description

technical field [0001] The invention relates to the processing field of an aluminum or aluminum alloy radiator, in particular to a manufacturing method of a vacuum brazing aluminum or aluminum alloy radiator. Background technique [0002] The production method of traditional aluminum or aluminum alloy radiators is as follows: 1. Press the aluminum or aluminum alloy into a thin plate, 2. Make strip blades required by the radiator through machining; 3. Stack the ends of each layer of blades A short section of aluminum-clad welding rod; 4. Weld the stacked heat sink on the side to form a closed heat sink; 5. Mill the workpiece after vacuum brazing, drilling, tapping or other machine After the processing, the screw sleeve is installed, cleaned and dried, and the product is obtained through the process of inspection and packaging. [0003] The disadvantages of the above aluminum or aluminum alloy manufacturing method are: 1. When several layers of strip-shaped blades are stacked...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/26
CPCB23P15/26
Inventor 陈平张志军黄一展黄君庆雷素萍
Owner ALNAN ALUMINIUM CO LTD
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