Patent ID: 9689625
Date: 2017-06-27
CPC Classifications: F28D,Y10T

Claim:
1. A method for manufacturing a heat pipe comprising following steps: providing an elongated circular tube; providing an elongated rod, the rod comprising an upper portion and a lower portion, a cross section of each of the upper portion and the lower portion being semicircular, the upper portion having a radius less than that of the lower portion, the radius of the lower portion being equal to an inner radius of the circular tube; inserting the rod in the circular tube, a receiving portion being formed between an inner face of the tube and the upper portion of the rod; providing an amount of metal powder and filling the metal powder into the receiving portion; sintering the metal powder at a temperature to form a first wick structure adhered on the inner face of the tube and then drawing the rod out of the tube; injecting a working medium into the tube, labeling the position of the first wick structure at an exterior of the circular tube and sealing the tube to thereby form the heat pipe; and flattening the heat pipe under an outer force applied on the label on the exterior of the circular tube to thereby form a flat heat pipe.