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Machining method of capillary wick and assembly method of capillary wick and pipe casing

A processing method and assembly method technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of complex processing, blockage, high cost, etc., and achieve the goal of increasing capillary suction, increasing heat exchange area, and improving heat exchange effect Effect

Active Publication Date: 2019-10-08
AT&M ENVIRONMENTAL ENG TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For this reason, the technical problem to be solved by the present invention is to provide a kind of processing method of capillary core, to solve the problem in the prior art that the pores on the surface of porous capillary core are blocked by processing debris and seriously affect the performance of capillary core;
[0009] The second technical problem to be solved by the present invention is to provide an assembly method of the capillary core and the shell to solve the dimensional accuracy requirements of the prior art for the porous capillary core and the shell, resulting in complicated processing and high cost

Method used

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  • Machining method of capillary wick and assembly method of capillary wick and pipe casing
  • Machining method of capillary wick and assembly method of capillary wick and pipe casing
  • Machining method of capillary wick and assembly method of capillary wick and pipe casing

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Embodiment 1

[0055] Such as figure 2 The schematic diagram of the product structure of the capillary core, the capillary core prepared in this embodiment is a 316L stainless steel capillary core with a length of 150 mm, an outer diameter of 10 mm, and an inner hole diameter of 5 mm.

[0056] The structure of the isostatic die used in the processing of the capillary core in this embodiment is as follows: figure 1 As shown, the material forming the capillary core is placed in the outer rubber sleeve 1 of the mold, and a hollow structure is formed at the position of the core rod 3. After the material is added, the rubber plug 2 is sealed tightly. The capillary core 4 can be obtained by pressing and molding.

[0057] The specific processing technology of capillary core described in the present embodiment comprises the following steps:

[0058] (1) According to the proportion of paraffin wax 2wt%, polyethylene glycol 2wt%, 316L powder (particle size: 25-30μm) 96wt%, take the binder and heat ...

Embodiment 2

[0068] Such as Figure 5 The schematic diagram of the product structure of the capillary core, the capillary core prepared in this embodiment is length × width × height: 100mm × 60mm × 5mm capillary core with a channel, which is assembled with a copper tube shell, and the specific processing steps are as follows:

[0069] (1) According to the ratio of 4wt% of polyvinyl alcohol and 96wt% of copper powder (particle size 50-60 μm), take the binder and heat it at 60-120° C. to melt and mix it with the metal powder. After mixing evenly, use 60 The mesh sieve separates the agglomerated powder and removes the agglomerated large particles;

[0070] (2) Weigh about 110g of mixed copper powder material, pour it evenly into the corresponding mold, seal it with a rubber stopper after shaking for 2 minutes, then put the mold into a cold isostatic press, control the pressure at 100MPa and carry out pressure holding treatment for 120s, The green body of the capillary core can be prepared, b...

Embodiment 3

[0079] Such as figure 2 The schematic diagram of the product structure of the capillary core. The capillary core prepared in this embodiment is a 304L stainless steel capillary core with a length of 150 mm, an outer diameter of 10 mm, and an inner hole diameter of 5 mm. The structure of the isostatic die used for processing the capillary core in this embodiment is as follows figure 1 shown.

[0080]The specific processing technology of capillary core described in the present embodiment comprises the following steps:

[0081] (1) According to the proportion of glycerol 1wt%, 304L powder (particle size 25-30μm) 99wt%, take the binder and heat it at 60-120°C until it melts, and mix it with the metal powder, and use it after mixing evenly A 60-mesh sieve separates the agglomerated powder and removes the agglomerated large particles;

[0082] (2) Weigh 80g of mixed metal powder material and pour it evenly into figure 1 In the mold shown, after vibrating for 6 minutes, seal it w...

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Abstract

The invention belongs to the technical field of evaporators of loop heat pipes, particularly relates to a machining method of a capillary wick and further discloses an assembly method of the capillarywick and a pipe casing. According to the machining method of the capillary wick, a binding agent is added to an existing metal powder material, a green body is prepared after isostatic compaction, channels are machined in the green body, and the capillary wick is prepared after sintering. According to the assembly method of the capillary wick and the pipe casing, the inner wall of the pipe casingis coated with paste containing the binding agent, so that an adhesive coating is formed; the capillary wick is inserted into the pipe casing, left to stay still until the capillary wick is dried andsintered at a high temperature, then the pipe casing and the capillary wick are closely adhered together, and the problem of high requirements for the accuracy of the overall size of the capillary wick in assembly manners in the prior art is solved; and additionally, the whole process has the advantages of simple machining manner, relatively short machining time and relatively low machining costs.

Description

technical field [0001] The invention belongs to the technical field of loop heat pipe evaporators, specifically relates to a processing method of a capillary core, and further discloses an assembly method of the capillary core and a tube shell. Background technique [0002] Loop heat pipes are widely used in the cooling and heat dissipation of heating components in the field of various high heat flux devices. A split heat pipe developed from the heat pipe. Compared with ordinary heat pipes, the loop heat pipe is different in that its capillary structure only exists in the evaporator, and the evaporator and condenser are separated from each other, so that the steam pipeline and liquid pipeline can be arranged arbitrarily, Loop heat pipes have a wider range of applications. In addition, the loop heat pipe has the advantages of strong heat transfer capacity, good isothermal performance, and long transmission distance, and is an ideal heat dissipation arrangement. [0003] Th...

Claims

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Application Information

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IPC IPC(8): B22F3/04B22F3/10B22F1/00B22F5/10B23P19/04F28D15/04
CPCB22F3/04B22F3/1007B22F5/10B22F3/1017F28D15/046B23P19/04B22F1/10
Inventor 郭辉进杨军军陆友俊刘冠颖张冠文王凡顾虎
Owner AT&M ENVIRONMENTAL ENG TECH CO LTD
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