| 摘要 |
PURPOSE: A heat pipe with metallic powder sintered wick structure having superior capillary phenomenon manufactured by injecting an operating fluid into the pipe and sealing the pipe under vacuum after covering and sintering metal powder on a metal plate to a certain thickness and forming the metal plate in a cylindrical pipe is provided. CONSTITUTION: The method for manufacturing a heat pipe(10) comprises the processes of covering metal powder with a particle size corresponding to a sieve size of 100 to 250 meshes on a metal plate to a certain thickness of 0.2 to 2 mm; sintering the metal powder covered metal plate in a vacuum furnace or a reduction environment furnace of a mixed gas of nitrogen and hydrogen, or hydrogen and argon gas at a temperature ranging from 700 to 1500 deg.C for 10 minutes to 3 hours; forming the sintered metal plate in a cylindrical shape; and injecting an operating fluid into the formed pipe with wick(12) structure, and forming a sealing part(18) by sealing both ends(11a,11b) of the operating fluid injected pipe with wick(12) structure under the vacuum state at the same time, wherein irregular grooves, V and U shaped fine grooves are formed on the metal pipe in a length direction of the pipe, the metal powder is covered and sintered on parts where irregular grooves, V and U shaped fine grooves are formed on the metal pipe in a length direction of the pipe, and the metal powder is copper powder, 1 to 10 % tin powder alloyed to copper and 1 to 10 % zinc powder mixed with copper are used in the copper powder to promote sintering.
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