KETEP 세계에너지시장정보

1. A method for manufacturing a heat pipe, comprising the steps of: forming a first wick structure on a portion of the inner surface of the heat pipe; and forming a second wick structure, wherein the step of forming the second wick structure includes: mixing a first material and a second material; heating the mixture of the first material and the second material to a temperature higher than the melting temperature of the first material and lower than the melting temperature of the second material to melt the first material; and forming the second wick structure by cooling the mixture of the first material and the second material to a temperature lower than the melting temperature of the first material to solidify the first material, and bonding a plurality of particles of the second material to each other to form a porous structure, wherein a portion of the second wick structure is formed on the first wick structure, and the other portion of the second wick structure is formed on the remaining portion of the inner surface of the heat pipe. The method wherein the second wick structure has finer porosity than the first wick structure such that the throughput of the working fluid flow is higher than that of the first wick structure.