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Ultra-large cold plate vacuum brazing method and a tool for vacuum brazing

A super-large, cold plate technology, used in welding equipment, metal processing, manufacturing tools, etc., can solve the problems of inability to guarantee large-area flatness, heavy tooling, and difficulty in furnace loading, reducing assembly and furnace loading. The effect of reducing the difficulty of post-weld correction, uniform flatness, and reducing the difficulty of post-weld correction

Active Publication Date: 2021-12-03
贵州永红换热冷却技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to provide a super-large cold plate vacuum brazing method and vacuum brazing tooling to solve the problems existing in the existing assembly tooling and vacuum brazing methods. The weight of the tooling is heavy, the furnace is difficult to install, the flatness of a large area cannot be guaranteed, and the energy consumption is too large, etc.

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  • Ultra-large cold plate vacuum brazing method and a tool for vacuum brazing

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Embodiment Construction

[0059] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the claims of the present invention is not limited to the content listed in this embodiment.

[0060] In this embodiment, a super-large cold plate whose size is 2489 x 950 x 60 mm is taken as an example to describe the vacuum brazing method and vacuum brazing tooling of the present invention in detail.

[0061] Vacuum brazing tooling in this embodiment The brazing tooling from top to bottom is the upper clamping plate 3, the upper tube 2, the upper backing plate 8 of the first layer, the elastic device 1, the middle backing plate 10 of the second layer, and the upper graphite paper 12 , lower graphite paper 9, one layer of lower backing plate 7, lower tube 4 and lower clamping plate 5, the elastic device 1 is composed of a plurality of independent cylindrical springs, the tooling is pressurized as a whole, and the middle back...

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Abstract

The invention provides an ultra-large cold plate vacuum brazing method and a tool for vacuum brazing. The tool sequentially comprises an upper clamping plate, an upper square pipe, an upper base plate, an elastic device, a middle base plate, upper graphite paper, lower graphite paper, a lower base plate, a lower square pipe and a lower clamping plate from top to bottom, the elastic device is formed by combining a plurality of independent cylindrical springs, and the tool is integrally pressurized. Existing vacuum equipment is used for welding an ultra-large cold plate, and brazing is conducted according to the route of the furnace temperature to 360 DEG C to 470 DEG C to 530 DEG C to 570 DEG C to 615 DEG C to 608 DEG C to 603 DEG C. According to the brazing tool, the assembly difficulty of the ultra-large cold plate is reduced, the welding quality of the large-area cold plate is improved, the welding technical problem of the ultra-large cold plate is solved through successful application of the brazing tool, and meanwhile the industry image of an enterprise is improved.

Description

technical field [0001] The invention relates to a brazing assembly tool and a vacuum brazing method for a cold plate, in particular to an assembly method and a tool for a super-large cold plate. Assembly work intensity. Background technique [0002] As a cold plate developed and produced for the radar array, the cold plate is mainly responsible for the heat transfer of the electronic components of the radar array. The cost of the radar system is high, and the reliability requirements for the cold plate are very high. The cold plate (made of aluminum alloy) The overall size is large, the length is greater than 2000mm, the width is greater than 900mm, and the thickness is greater than 50mm. The flow channel structure of the cold part is complex, and the welding quality requirements are high. And the virtual welding area that appears in the inspection cannot penetrate the runner. The brazing of large-area cold plates is prone to false welding, especially for cold plates of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/00B23K3/08
CPCB23K3/00B23K3/087B23K3/08
Inventor 朱单单冯学文沈鹏李祥姜发有
Owner 贵州永红换热冷却技术有限公司
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