초록 ▼

A new method for making a heat pipe wick and arteries includes drilling. Radial holes around the circumference of the heat pipe container at its ends and stringing monofilament polymer lines inside the container between corresponding holes. The container is rotated at a slow rate while a slurry of n

A new method for making a heat pipe wick and arteries includes drilling. Radial holes around the circumference of the heat pipe container at its ends and stringing monofilament polymer lines inside the container between corresponding holes. The container is rotated at a slow rate while a slurry of nickel powder mixed into a viscous binder of water, Polyox and Methocel is injected inside the container to cover the inside surface of the container and the lines. The rotational rate of the container is then increased to force the slurry to level out to an uniform depth set by the thickness of sleeves attached at each end of the container. Forced air is blown through the inside of the rotating pipe to dry the slurry and form a green wick. After stopping rotation of the pipe, it is then heated inside a sintering oven in a reducing atmosphere to disintegrate the binder and polymer lines and to leave a sintered metal wick having hollow longitudinal arteries.

대표청구항 ▼

A method for making arteries inside a heat pipe wick comprising the steps of: (a) securing at least one line at a preselected position generally within a volume to be occupied by the wick; (b) fabricating the wick so that it covers the secured line; and, (c) heating the wick to a temperature above t

A method for making arteries inside a heat pipe wick comprising the steps of: (a) securing at least one line at a preselected position generally within a volume to be occupied by the wick; (b) fabricating the wick so that it covers the secured line; and, (c) heating the wick to a temperature above the decomposition temperature of the line so that the line disintegrates leaving in its place an artery through the wick.