Powder sintered stainless steel heat pipe and preparation method thereof
A stainless steel tube and stainless steel technology, applied in the field of phase change heat transfer, to achieve the effects of stable structure, convenient operation and stable performance
Active Publication Date: 2019-01-29
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
There is no stainless steel heat pipe in the prior art
Method used
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[0027] The present invention will be described in further detail below.
[0028] A powder sintered stainless steel heat pipe includes a stainless steel tube, a first stainless steel sheet, a second stainless steel sheet, a liquid-absorbing core, and a liquid working fluid. The first stainless steel sheet is welded and sealed at one end of the stainless steel tube, and the second stainless steel sheet with a suction port is welded and sealed at the other end of the stainless steel tube. The end of the suction port for filling liquid working fluid and vacuuming is sealed. sheet, the second stainless steel sheet, and stainless steel tube to form a vacuum chamber, and the inside is vacuumed; the liquid-absorbing core is a ring-shaped metal powder tube formed by solid-phase sintering, which is tightly attached to the inner wall of the stainless steel tube after solid-phase sintering; The substance is on the inside of the absorbent core.
[0029] The stainless steel pipe is a 304L ...
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Abstract
The invention relates to a powder sintered stainless steel heat tube. The stainless heat tube comprises a stainless steel tube, a first stainless steel sheet, a second stainless steel sheet, a liquid absorbing core and a liquid medium, wherein the first stainless steel sheet is welded at one end of the stainless steel tube, the second stainless steel sheet with a tap is welded at the other end of the stainless steel tube, the end of the tap for filling the liquid medium and extracting vacuum is sealed, and the first stainless steel sheet, the second stainless steel sheet and the stainless steel tube encircle a vacuum chamber; the liquid absorbing core is a solid-phase sintered circular metal power tube, and is tightly attached to the inner wall of the stainless steel tube by solid-phase sintering; and the liquid medium is located inside the liquid absorbing core. The invention further relates to a manufacturing method of the powder sintered stainless steel heat tube. The powder sintered stainless steel heat tube has the characteristics of high strength, stable performance, wide application range and the like, can be applied to special environments in the fields of nuclear power, aeronautical satellites, ocean exploration engineering and the like, and belongs to the technical field of phase change heat transfer in the radiation field.
Description
technical field [0001] The invention relates to a phase change heat transfer technology in the field of heat dissipation, in particular to a powder sintered stainless steel heat pipe and a preparation method thereof. Background technique [0002] Relying on the principle of phase change heat transfer, the heat pipe has the advantages of high thermal conductivity, good isothermal property, fast heat start, simple structure, and no additional electric drive. It has become an ideal component in the field of heat dissipation in various industries. [0003] The heat transfer performance of the heat pipe mainly depends on the performance of the wick. The structure of the liquid-absorbing core mainly includes four types: groove type, wire mesh type, fiber type and sintered type. [0004] The grooved liquid-absorbing core has the best permeability, the least flow resistance of the working fluid, but the smallest gross suction, poor anti-gravity working ability, and has high require...
Claims
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IPC IPC(8): F28D15/04B22F7/04B22F5/12
CPCB22F5/106B22F7/04F28D15/046
Inventor 汤勇陈灿曹睿林浪陈杰凌唐恒
Owner SOUTH CHINA UNIV OF TECH