MANUFACTURE OF HEAT PIPE HEAT TRANSFER PIPE

PURPOSE:To bring a capillary tube body into close contact with the inner wall of a heat transfer pipe whatever a sectional shape thereof is, by forming the capillary tube body by a method wherein solder or a waxy adhesive is melted on the inner wall of the heat transfer pipe by heating or non-heating, forcing fine powder and a fine fiber material to adhere to the melted portion, and solidifying the adhesive. CONSTITUTION:A heat transfer pipe manufacturing apparatus comprises a heat transfer pipe 1 adapted to be freely rotatable via a bearing 8, a heater 5 for heating the heat transfer pipe, and a blower 6 and a piping 7 mounted on opposite ends of the heat transfer pipe 1 for circulating a fine powder sample as a raw material of a capillary tube body and fine fibers 2. The piping is constructed in the form of a loop. Since on the inner wall of the heat transfer pipe an adhesive has been melted, scattered fine powder sample and fine fibers are forced to adhere to the adhesive. Thereupon, as heating by the heater 5 is interrupted to solidify the adhesive, the fine powder sample and fine fibers forced to strongly adhere to the inner wall for formation of the capillary tub body. With this method, chemical adhesives are available in addition to melted metal materials such as solder and wax.