Manufacturing method for heat pipe
A manufacturing method and heat pipe technology, which are applied in indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of dry burning at the evaporation end of the heat pipe, complex manufacturing processes, and easily damaged capillary structures, so as to avoid dry burning and manufacturing Simple process effect
Active Publication Date: 2013-09-25
宿迁广安建设工程有限公司
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Problems solved by technology
The pipe body of this heat pipe is not only complicated in manufacturing process, but also the capillary structure in the pipe body is easily destroyed when it is bent or flattened, so that the working liquid in the pipe body cannot return in time when the heat pipe is working, and then the evaporation end of the heat pipe will be damaged. Dry burning occurs
Method used
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[0019] figure 1 and figure 2 Shown is the heat pipe 10 manufactured by the heat pipe manufacturing method according to the first embodiment of the present invention. The heat pipe 10 includes a pipe body 11, a capillary structure layer 12 arranged on the inner wall surface of the pipe body 11, and filled in the pipe body 11 Working fluid.
[0020] The manufacturing method of the heat pipe includes the following steps:
[0021] First, prepare the raw materials, and mix an appropriate amount of metal powder and organic binder. The metal powder is selected from thermally conductive materials, such as metals, alloys and metal oxides, specifically such as: copper, aluminum, copper alloys, aluminum alloys, Fe-Ni alloys, stainless steel, titanium alloys, nickel-based super alloys, alumina, Zirconia, etc., the particle size is 0.5-20μm. The finer the particles of the powder, the larger the surface area, and it is easy to form and sinter. The metal powder has a better forming effect when...
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Abstract
A manufacturing method for a heat pipe comprises the following steps: 1) mixing organic adhesive with metal powder at the volume rate of 2:3 to 7: 3, then milling to obtain injection molding raw materials, wherein the metal powder is selected from metal, alloy, and metal oxide; the organic adhesive is rheological resin material, and does not reacts when mixing with the metal powder and not remain carbon when being removed from the metal powder; 2) pressing the injection molding raw materials through an injection molding machine to a precasted molding die to manufacture embryo pieces with a preset shape; 3) adopting a physical or a chemical method to remove the organic adhesive in the embryo pieces; 4) putting every two degreased embryo pieces together, and sintering in the preset temperature to eliminate pore spaces between metal powder particles, and allowing the two closed embryo pieces to combine mutually to form a pipe body, wherein one end of the pipe body is sealed and the other end is open; and 5) filling working fluid through the open end of the pipe body, and vacuumizing and sealing the pipe body.
Description
Technical field [0001] The invention relates to a heat pipe manufacturing method and a heat pipe. Background technique [0002] Heat pipes are widely used for heat dissipation of electronic components due to their fast heat transfer speed and quietness. [0003] The heat pipe usually includes a sealed tube body with a certain degree of vacuum, a capillary structure layer arranged in the tube body, and a working fluid filled in the tube body. One end of the heat pipe is the evaporation end and the other end is the condensation end. When the evaporating end of the heat pipe absorbs heat, the working liquid in the heat pipe evaporates and vaporizes. The steam flows to the condensing end under a small pressure difference, and then condenses into a liquid. The liquid flows back to the evaporating end of the heat pipe through the capillary pressure difference generated by the capillary structure layer. The heat is quickly transferred from the evaporation end of the heat pipe to the con...
Claims
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IPC IPC(8): B22F3/22B22F5/12F28D15/04
Inventor 钟明修郑年添
Owner 宿迁广安建设工程有限公司