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Core tube positioning and extraction method in fiber sintered heat pipe manufacturing process

A manufacturing process and sintering technology, applied in the field of heat pipe manufacturing, can solve the problems of difficult extraction and difficult positioning of the core tube, and achieve the effects of reducing the output rate, reducing the yield rate of defective products and improving production efficiency.

Active Publication Date: 2019-04-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a core tube positioning and extraction method in the manufacturing process of fiber sintered heat pipes, which can effectively solve the problems of difficult core tube positioning and extraction

Method used

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  • Core tube positioning and extraction method in fiber sintered heat pipe manufacturing process

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with specific embodiments.

[0032] Such as figure 1 As shown, a core tube positioning and extraction method in the manufacturing process of a fiber sintered heat pipe includes steps:

[0033] 1) A removable positioning tube 2 is arranged between the heat pipe shell 1 and the core tube 3 and filled with metal fibers;

[0034] 2) Inject low-temperature medium into the sintered core tube 3 and pull out the core tube 3 .

[0035] Specifically, the step 1) specifically includes:

[0036] 11) Fix the heat pipe housing 1;

[0037] 12) Spray the release agent on the core tube 3, and then insert it into the heat pipe shell 1;

[0038] 13) Insert the positioning tube 2 between the heat pipe shell 1 and the core tube 3;

[0039] 14) Fill the space between the heat pipe shell 1 and the core tube 3 and above the positioning tube 2 with metal fibers;

[0040] 15) Take out the positioning tube 2, and...

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Abstract

The invention discloses a core pipe positioning and drawing-out method in a fiber sintering type heat pipe manufacturing process. The core pipe positioning and drawing-out method comprises the steps that firstly, a positioning pipe which can be taken out and metal fiber are arranged between a heat pipe shell and a core pipe; and secondly, a low-temperature medium is injected into the sintered corepipe, and the core pipe is drawn out. By means of the core positioning method, the coaxiality of a heat pipe sintering fiber liquid core and the heat pipe shell can be greatly increased, and interior-quality products are reduced; and by means of the core drawing-out method, the difficulty of drawing out the core pipe can be greatly lowered, and rejected products are reduced.

Description

technical field [0001] The invention relates to the field of heat pipe manufacturing, in particular to a core pipe positioning and extraction method in the fiber sintered heat pipe manufacturing process. Background technique [0002] The heat pipe has the characteristics of high thermal conductivity, good stability, excellent gravity resistance and no need for additional power. It has become an ideal heat conduction element used in the fields of electronics, metallurgy and chemical industry. The liquid-absorbing core is the core component of the heat pipe. The fiber sintered liquid-absorbing core has high permeability, strong capillary force, excellent comprehensive performance, and has excellent application prospects. However, it is difficult to manufacture, and the core tube is easy to eccentric and difficult to extract, resulting in a large proportion of defective and waste products, which hinders the application and promotion of fiber liquid-absorbent cores. Contents ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D15/04
Inventor 汤勇曹睿万珍平陈灿
Owner SOUTH CHINA UNIV OF TECH