Machining device and process for heat-pipe capillary structure

Abstract

The invention discloses a machining device and process for a heat-pipe capillary structure. The machining device for the heat-pipe capillary structure comprises a powder mixing mechanism, a shaping mechanism and a sintering mechanism. The powder mixing mechanism comprises at least two powder storage hoppers which are coaxially arranged in a nested mode. The sizes of the powder storage hoppers are gradually increased from inside to outside. The lower end of each powder storage hopper is correspondingly connected with a pipe body, and a spiral groove is formed in the inner wall of each pipe body. The shaping mechanism is connected to the lower ends of the pipe bodies. A through hole is formed in the shaping mechanism. A positioning shaft is arranged on the top of the sintering mechanism. The top of the positioning shaft penetrates through the through hole of the shaping mechanism. The machining device for the heat-pipe capillary structure is only provided with one central shaft, so that mixing, shaping and sintering of multiple layers of powder are achieved, and the multilayer heat-pipe capillary structure is obtained. In addition, the machining process for the heat-pipe capillary structure is simple and easy to operate.

Description

technical field [0001] The invention belongs to the field of heat pipes, and in particular relates to a processing device and process for capillary structures of heat pipes. Background technique [0002] Due to the characteristics of high thermal conductivity, fast heat transfer, high thermal conductivity, simple structure and multiple uses, heat pipes are widely demanded by the heat dissipation market. In addition, most of the heat pipes on the market have a capillary structure in the body, which facilitates the transmission of the working fluid in the heat pipe, and the capillary structure can be realized by sintering powder. [0003] The capillary structure of the heat pipe in the prior art generally includes processes such as central shaft insertion, powder filling, powder sintering, and central shaft extraction. The manufacturing process is complex and requires more personnel, equipment, and tools. Especially in the powder sintering process, a separate central shaft is...

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Problems solved by technology

[0003] In the prior art, the capillary structure of the heat pipe generally includes processes such as central shaft insertion, powder filling, powder sintering, and central shaft extraction. The manufacturing process is complicated, and there are many requirements for personnel, equipment, and tools.

Especially in the powder sintering process, a separate central shaft is required for each product produced, which is costly; and the sintered material is powder, which cannot realize the sintering of multi-layer powder, so it is impossible to make a multi-layer capillary structure through a central shaft. Heat pipe

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