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Flaring heat pipe and manufacturing method thereof

A manufacturing method and technology of heat pipes, applied in the field of heat pipes, can solve problems such as complicated procedures and increased production costs, and achieve the effects of obvious reflux cycle, improved heat transfer efficiency, and reduced production costs

Pending Publication Date: 2018-11-23
JIANGSU KAIWEIDI TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned heat pipes all adopt a composite capillary structure, and are mainly realized by using different structures or types of capillary materials, which can improve the heat conduction performance to a certain extent, but the process is relatively complicated and the production cost will also increase

Method used

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  • Flaring heat pipe and manufacturing method thereof
  • Flaring heat pipe and manufacturing method thereof
  • Flaring heat pipe and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as image 3 Shown, a kind of manufacture method of flared heat pipe, described manufacture method mainly comprises the following steps:

[0038] Step 1: Provide a circular hollow tube body, the length of which is L;

[0039] Step 2: Flare one end of the hollow tube body first, and the length of the flared section is L1; shrink the other end of the hollow tube body to half of the outer diameter of the hollow tube body (the tolerance is plus or minus 0.5mm); The outer diameter of the mouth section is 1.2 times the outer diameter of the hollow tube;

[0040] Step 3: Insert a stainless steel round rod of a certain size into the hollow tube body with a narrow mouth at one end;

[0041] Step 4: Fill metal powder into the hollow tube body inserted into the stainless steel round rod, and sinter at high temperature after the powder filling is completed;

[0042] Step 5: After the sintering is completed, pull out the stainless steel round rod in the hollow tube body; shri...

Embodiment 2

[0046] Such as image 3 Shown, a kind of manufacture method of flared heat pipe, described manufacture method mainly comprises the following steps:

[0047] Step 1: Provide a circular hollow tube body, the length of which is L;

[0048]Step 2: Flare one end of the hollow tube body first, and the length of the flared section is L1; shrink the other end of the hollow tube body to half of the outer diameter of the hollow tube body (the tolerance is plus or minus 0.5mm); The outer diameter of the mouth section is 1.3 times the outer diameter of the hollow tube;

[0049] Step 3: Insert a stainless steel round rod of a certain size into the hollow tube body with a narrow mouth at one end;

[0050] Step 4: Fill metal powder into the hollow tube body inserted into the stainless steel round rod, and sinter at high temperature after the powder filling is completed;

[0051] Step 5: After the sintering is completed, pull out the stainless steel round rod in the hollow tube body; shrin...

Embodiment 3

[0055] Such as image 3 Shown, a kind of manufacture method of flared heat pipe, described manufacture method mainly comprises the following steps:

[0056] Step 1: Provide a circular hollow tube body, the length of which is L;

[0057] Step 2: Flare one end of the hollow tube body first, and the length of the flared section is L1; shrink the other end of the hollow tube body to half of the outer diameter of the hollow tube body (the tolerance is plus or minus 0.5mm); The outer diameter of the mouth section is 1.4 times the outer diameter of the hollow tube;

[0058] Step 3: Insert a stainless steel round rod of a certain size into the hollow tube body with a narrow mouth at one end;

[0059] Step 4: Fill metal powder into the hollow tube body inserted into the stainless steel round rod, and sinter at high temperature after the powder filling is completed;

[0060] Step 5: After the sintering is completed, pull out the stainless steel round rod in the hollow tube body; shri...

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Abstract

The invention discloses a flaring heat pipe. The flaring heat pipe comprises a hollow pipe body, wherein both ends of the hollow pipe body are sealed, and working media are injected into the hollow pipe body; the hollow pipe body comprises a heating section, an insulating section and a cooling section; the inner diameters of the heating section, the insulating section and the cooling section are the same; the outer diameters of the insulating section and the cooling section are consistent, and the outer diameter of the heating section is greater than that of the insulating section and the cooling section; a first capillary structure is arranged on the inner wall of the heating section, and second capillary structures are arranged on the inner walls of the insulating section and the coolingsection; and the thickness of the first capillary structure is greater than that of the second capillary structures. The invention further discloses a manufacturing method of the flaring heat pipe. According to the flaring heat pipe provided by the invention, the thickness of the capillary structure of the heating section is large, so that the backflow circulating speed in a pipe cavity body is increased, and the heat transfer efficiency is greatly improved; a die cutting mode is adopted, a part of the necking position is hollow after being cut, and protective gas can enter the pipe when thetail end is welded, so that the welding position is prevented from being oxidized by high temperature, and annealing is not needed.

Description

technical field [0001] The invention relates to a heat pipe, in particular to a flared heat pipe and a manufacturing method thereof. Background technique [0002] At present, heat pipes have been widely used in electronic components with large heat generation due to their advantages of high heat transfer. When the heat pipe is working, the low-boiling-point working medium filled inside the tube absorbs the heat generated by the heating electronic components at the heating end and then evaporates and vaporizes. Thereby dissipating heat from electronic components. The liquefied working medium flows back to the evaporator under the action of the capillary structure on the inner wall of the heat pipe, and continues to evaporate, vaporize, liquefy and condense, so that the working medium circulates inside the heat pipe and continuously emits the heat generated by the electronic components. Generally, the movement of the driving working medium mainly depends on: the amount of he...

Claims

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Application Information

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IPC IPC(8): F28D15/04
CPCF28D15/046
Inventor 唐黎汤恒新何阳胡循亮
Owner JIANGSU KAIWEIDI TECHNOLOGY CO LTD
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