SU1193427A1 - Process of manufacturing thermal tube - Google Patents

Abstract

THE METHOD OF MANUFACTURING A HEAT PIPE by applying a layer of plastic material to the inner surface of the filling nozzle, filling the pipe with a dosed amount of heat carrier and then. sealing the pipe with a pinch of its filling nozzle, about the same, so that, in order to increase the operational quality of the pipe by using welding during sealing, it is necessary to clamp the filling one. the pipe is carried out at te fflepatax below the melting point of a layer of plastic material deposited on its inner surface, followed by welding. W С

Description

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The invention relates to heat engineering, in particular to methods for manufacturing heat pipes.

The purpose of the invention is to increase the operational reliability of the pipe by using welding in sealing.

Fig, 1 shows a heat pipe, the pipe of which is compressed with jaws clamp, section; Fig, 2 - charging nozzle after crimping, cross section.

The heat pipe 1 has a filling nozzle 2, on the inner surface of which a layer of ductile metal of copper is applied (3). Crimping the filling nozzle is carried out with clamping jaws 4 and 5.

A method of manufacturing a heat pipe is carried out as follows.

On the inner surface of the filling nozzle 2 of the heat pipe 1 a layer 3 of copper with a thickness of 10 μm is applied. After pumping out, fill the pipe 1 with dos.

the amount of heat carrier and sealed with a pinch of its filling nozzle 2, and clamping is carried out with clamp jaws 4 and 5 5 at temperatures below the melting temperature of layer 3, for example at room temperature, using a hand press with specially treated jaws no more than 20 mm thick. Then, the upper part of the filling nozzle is bitten off for a certain length and the remaining part of the filling nozzle 2 is welded to the cut, end surface.

The soft metal deposited on the inner surface of the filling nozzle significantly improves the surface quality and, in the course of the reduction process, contributes to sufficient sealing of the heat pipe before welding due to filling not only the surface defects of the material, but also filling the resulting microcracks.

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Claims (1)

METHOD FOR PRODUCING A HEAT PIPE by applying a layer of plastic material on the inner surface of the filling pipe, filling the pipe with a dosed amount of coolant and subsequent. pipe sealing with pinch of its filling pipe, about l And h and kg. and with the fact that, in order to increase the operational reliability of the pipe by using the sealing of welding, pinch the filling. the pipe is carried out at temperatures below the melting temperature of a layer of plastic Material deposited on its inner surface, followed by welding. C © co