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Brazing device and process for interior of cooling plate sealing cavity under inert gas shielding environment

A technology of protecting the environment and inert gas, which is applied in the field of brazing equipment and technology in the closed cavity of the cooling plate to achieve the effects of improving production efficiency, increasing yield and reducing labor intensity

Pending Publication Date: 2020-04-03
山东海力同创散热制冷技术开发有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no good way to effectively solve the welding problem of high quality and high pass rate of aluminum cooling plate

Method used

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  • Brazing device and process for interior of cooling plate sealing cavity under inert gas shielding environment
  • Brazing device and process for interior of cooling plate sealing cavity under inert gas shielding environment
  • Brazing device and process for interior of cooling plate sealing cavity under inert gas shielding environment

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Experimental program
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Effect test

Embodiment

[0024] Described brazing equipment and process, brazing process is as follows:

[0025] 1. Preparation process: The pre-welding process of the aluminum heat dissipation cooling plate workpiece is as follows: evenly apply brazing flux and brazing material on the welding seam of the aluminum heat dissipation cooling plate workpiece;

[0026] 2. Drying and preheating process: place the aluminum heat dissipation cooling plate workpiece in the fixed slot on the chain conveyor, and send it to the drying preheating furnace for drying by the chain conveyor. The drying time is controlled within 5-8 minutes , the drying preheating temperature is controlled at 100-150°C;

[0027] 3. Nitrogen blowing and deoxygenation process: the workpiece of the aluminum heat dissipation cooling plate enters the brazing furnace after drying the preheating furnace, the nitrogen main pipe of the automatic nitrogen filling and deoxygenation mechanism is lowered by the lifting cylinder, and the nitrogen blo...

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Abstract

The invention provides a brazing device and process for the interior of a cooling plate sealing cavity under an inert gas shielding environment. The device structurally comprises a drying preheatmentfurnace, a brazing furnace, a cooling furnace, a chain conveyor and an automatic nitrogen charging and oxygen removal mechanism, wherein the drying preheatment furnace and the cooling furnace are arranged at the two ends of the brazing furnace. A to-be-welded aluminum heat-dissipation cooling plate workpiece is clamped and fixed on the chain conveyor, the chain conveyor passes through the drying preheatment furnace, the brazing furnace and the cooling furnace, the inlet and outlet of the drying preheatment furnace, the brazing furnace and the cooling furnace are provided with a heat insulationcurtain, the automatic nitrogen charging and oxygen removal mechanism is arranged on the two side faces of the chain conveyor, and nitrogen blowing jet nozzles of the automatic nitrogen charging andoxygen removal mechanism automatically follow the aluminum heat-dissipation cooling plate workpiece to move, and are aligned with the cavity inside the aluminum heat-dissipation cooling plate workpiece. The brazing device and process are high in automation degree, greatly increase the rate of finished products, and have a high popularization value.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to brazing equipment and technology in a closed cavity of a cooling plate under an inert gas protection environment. Background technique [0002] The closed cavity of the aluminum heat dissipation cooling plate is a heat exchanger for gas, water or other cooling medium fluids. The aluminum heat dissipation cooling plate has a structure with an extended surface, a cooling channel with a smaller equivalent diameter, and the use of which is conducive to enhancing convective heat transfer. The geometric shape features such as the rib surface make the heat transfer coefficient higher. As the executive element of the cooling system, the aluminum heat dissipation cooling plate can effectively realize the efficient cooling of power devices, printed board assemblies and electronic chassis. Therefore, the aluminum heat dissipation cooling plate has been widely used in the thermal control t...

Claims

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Application Information

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IPC IPC(8): B23K1/008B23K3/08
CPCB23K1/008B23K3/085
Inventor 李向征周栋梁杨宝张麒麟王政连于磊
Owner 山东海力同创散热制冷技术开发有限公司
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