Method for making integrated-formed flat heat pipe and heat pipe base material

Abstract

This invention relates to a manufacturing method for molding at one run flat heat conduction tubes including: a, taking a round backing, setting a capillary structure at the central position of the backing and injecting working fluid in a shell, sealing the two ends of the backing so as to form a heat conduction tube backing, b, pressing the backing to flat of necessary dimension, c, rolling the backing from one side to the other, d, cutting said backing to ordered dimensions and sealing them to form suitable heat conduction tubes. A heat conduction tube backing includes a round backing several times of the length of a product tube, in which, capillary structure is set in the round backing, working fluid is injected in a shell and both ends of the backing are sealed.

Description

technical field [0001] The invention relates to a manufacturing method of an integrally formed flat heat pipe and a base material of the heat pipe, especially a heat pipe that can be cut and sealed at one time according to the final application size of the product in the execution stage of product application, and can be used reliably. A convenient and flexible one-piece flat heat pipe manufacturing method and heat pipe base material. Background technique [0002] Such as figure 1 As shown, the general existing heat pipe 1 is manufactured by cutting the raw material length (about 2.4 meters long or longer) for the first time according to the final required length of the product, and the cut length is about It ranges from 1.3 to 1.5 times the required size of the finished product. The finished substrate is cut and subjected to heat pipe characteristic production processes such as sintering, mesh or groove. The number of processed base materials after raw material cutting i...

AI Technical Summary

Problems solved by technology

The number of processed base materials after raw material cutting is more than ten times that of the original material, and the processing time for necessary processes such as water injection, degassing and vacuuming also needs to be several times longer than that of the original material, and finally the length of the finished product is processed. At the same time, it is necessary to cut off the excess raw materials at the front end, which increases the process time and material cost loss

[0003] If it is desired to place the heat pipe 1 into a flat shape, usually after the circular heat pipe 1 is formed, an external force is applied through a tool to flatten the circular heat pipe 1 to the required specification, and the shape such as figure 2 The flat heat pipe 2 shown, but since the capillary structure and the working fluid of the heat pipe 1 have been arranged on the inner wall of the heat pipe 1 during manufacture, if an external force is applied, the adhesion of the capillary structure will be destroyed. And the porosity greatly reduces the efficiency of the heat pipe and reduces the process yield. Therefore, the application range of the general heat pipe is limited, and it cannot be applied to the needs of actual use.

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