Patent ID: 6303191
Filing Date: 2001-10-16
Classification: C23C,F28D,Y10T

Abstract:
A process for the production of a heat pipe for transporting heat from an evaporation area to a condensation area, said heat pipe comprising a housing with housing walls, a capillary structure arranged in the housing and thermally coupled to a respective, corresponding housing wall in the evaporation area as well as in the condensation area, a vapor channel arranged in the housing and leading from the evaporation area to the condensation area, and a liquid heat transport medium contained in the housing, said process comprising the step of:producing the capillary structure as an open-pored capillary layer by way of high frequency plasma spraying of powder particles onto a surface, wherein the high frequency plasma spraying is carried out such that the powder particles are melted on their surface but maintain a solid core beneath their surface to form a molten layer which solidifies and extends over said maintained solid cores in the capillary layer and joins the maintained solid cores of the powder particles in a solidified state.