Air cold plate sealing forming technology of aluminum alloy

A forming process, aluminum alloy technology, applied in metal processing equipment, manufacturing tools, workpiece edge parts, etc., can solve the problems of low production efficiency, poor brazing seam compactness, low joint strength, etc., to improve the ability of deep processing resistance, Guarantee the tightness requirements and improve the effect of welding yield
CN101007381AInactive Publication Date: 2007-08-01CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
Publication Date
2007-08-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

A aluminum alloy air-cooled freezing-plate sealing shaping process includes the following steps: 1. processing the appearance of freezing-plate, dissipating heat fins and cover plate parts according to structure design, the structure design of freezing-plate is flush type cavity structure, the two ends of freezing-plate shell is equipped with 2-3 soldering fabrication holes with diameter of 2-3mm; 2. welding the dissipating heat fins and freezing-plate shell, cover plate through the soldering method in nitrogen protection furnace; 3. milling out printed circuit board slots on the freezing-plate shell; welding the cover plate and shell vertical soldering seam through stirring friction welding; 5. mechanical processing the appearance and two end ventilators of freezing-plate according to the drawings requirements, processing the soldering fabrication holes into two end ventilators. The aluminum alloy freezing-plate using the art method of combination of soldering and stirring friction welding in the invention increases the resistant finely processed capacity of brazing seam surface, ensures the hermeticity requirement after finely process aluminum alloy freezing-plate and increases the welding yield rate of electronic structure cabinet.
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Description

technical field

[0001] The invention relates to the manufacture of an aluminum alloy air-cooled cold plate for an electronic equipment case. Background technique

[0002] The chassis widely used in sea, land and air is a sophisticated and complex structure that receives the heat of internal components and exports the heat to the surrounding environment. The chassis realizes the heat dissipation requirements of the internal structure by introducing a certain pressure of cold air. In order to prevent the humid cooling air from condensing in the working environment with alternating temperature and humidity, which will affect the normal operation of the electronic equipment in the case, the case must adopt a full metal seal design. Generally, the air duct and connection welds of the case for radar are required to be airtight. 3.5Kpa without leakage.

[0003] The geometric shape of the chassis is mostly a flat cuboid. Generally, the chassis is composed of a front frame, left and...

Claims

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