Patent ID: 7895747
Filing Date: 2011-03-01
Classification: B23P,F21V,F28D,H01L,Y10T

Abstract:
1. A method for manufacturing a heat pipe with a planished end surface, the heat pipe comprising a pipe body having a sealed end and an open end said method comprising the steps of: providing a female mold having a flat bottom surface, the female mold also being adapted to receive the sealed end of the pipe body; providing a male mold having a flat top surface corresponding to the bottom surface of the female mold, the male mold also being adapted to be inserted into the pipe body from the open end of the pipe body; fixing the sealed end of the pipe body within the female mold; inserting the male mold into the pipe body; by use of the male mold, pressing the sealed end of the pipe body with respect to the female mold to form the planished end surface, for mounting an electronic device, at the sealed end of the pipe body; providing a central bar, wherein a diameter of the central bar is smaller than a diameter of the pipe body; placing a first metal powder into the pipe body, inserting the central bar into the pipe body from the open end of the pipe body and pressing the bar against the first metal powder; filling a second metal powder between the pipe body and the central bar, executing a sintering process to fuse the second powder with the first powder, and forming a porous capillary diversion layer at an inner wall of the metal pipe body; taking the central bar out from the pipe body; injecting a working fluid into the pipe body by using a tubule; and vacuuming the pipe body and sealing the open end of the pipe body, whereby after the heat pipe is manufactured, the electronic device is capable of being mounted on the planished end surface at the sealed end of the heat pipe.