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Vacuum nitrogen oven

A nitrogen and vacuum technology, used in drying, dryers, lighting and heating equipment, etc., can solve the problems of low baking efficiency and long cooling time, and achieve improved drying efficiency, good air tightness, and shortened drying time. The effect of the bake cycle

Inactive Publication Date: 2009-10-21
STATE GRID TIANJIN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vacuum nitrogen oven needs a long time to cool down after the baking is completed, resulting in low baking efficiency

Method used

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Embodiment Construction

[0011] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] figure 1 It is a cross-sectional view of the structure of the vacuum nitrogen oven provided in this embodiment, which includes: a box body 10 , an insulating outer wall 20 , a temperature control device 50 , a circulating air device 60 , a gas transfer device 70 and a cooling device 30 .

[0013] refer to figure 2 The box body 10 includes a first side wall 12 , a second side wall 16 and a third side wall 14 , and the first side wall 12 , the second side wall 16 and the third side wall 14 form a cavity.

[0014] The heat insulating outer wall 20 is arranged around the box body 10 and has a first side wall 22, a second side wall 26 and a first side wall 22 corresponding to the first side wall 12, the second side wall 16 and the third side wall 14 of the box body 10 respectively. The third side wall 24 . A cooling device 30 is provi...

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Abstract

A vacuum nitrogen oven comprises a case having a first side wall, a second side wall and a third side wall, a heat insulation outer wall surrounding the case and having a first side wall, a second side wall and a third side wall corresponding to the first side wall, the second side wall and the third side wall of the case, a gas transfer device communicated with the case, and temperature control equipment used for controlling the temperature in the case. The vacuum nitrogen oven which can quickly cool off also comprises a cooling device comprising a cooling jacket, at least one water inlet arranged on the cooling jacket, and at least two water outlets. The cooling jacket is positioned between the case and the heat insulation outer wall. The cooling jacket is provided with a first interlayer, a second interlayer and a third interlayer which are communicated with the first interlayer, are oppositely arranged, and surround a chamber with the first interlayer. The vacuum nitrogen oven which can quickly cool off has high efficiency and good air tightness.

Description

technical field [0001] The invention relates to a vacuum nitrogen oven, in particular to a rapidly cooling vacuum nitrogen oven. Background technique [0002] A printed circuit board is a substrate for assembling electronic components. In the production process of printed circuit boards, it is necessary to bake the semi-finished printed circuit boards many times, and then carry out subsequent processing. [0003] The baking process is to place the printed circuit board in a high-temperature environment and keep it for a period of time, which is usually performed in an aerobic environment. However, during the long-term baking process, the anti-oxidation layer on the surface of the copper foil of the copper-clad substrate decomposes at high temperature, causing the surface of the copper foil to be oxidized and discolored, which seriously affects the appearance quality of the printed circuit board. [0004] Using a vacuum nitrogen oven to bake the printed circuit board can so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B9/06F26B7/00F26B5/04F26B3/00
Inventor 黄庭总黄鼎舜涂成达林承贤
Owner STATE GRID TIANJIN ELECTRIC POWER
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