SU1283881A1 - Method of manufacturing waveguide units - Google Patents

Abstract

This invention relates to a waveguide fabrication technique, by electroforming. The purpose of the invention is to reduce the time of manufacture of waveguide assemblies, which is achieved by heating a portion of the mandrel in contact with the solvent, to a temperature that exceeds the solvent. The device that implements this method consists of a bath 1 filled with solvent 2, through the hole in the wall of bath 1, the mandrel 3 is hermetically inserted into it, a conductive layer 4 is applied on the end of the mandrel 3 placed in the solvent 2, released from the conductive layer 4. At the other end of the mandrel 3 there is a heat-electron-heater 5. 5 Il. c (o

Description

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The invention relates to a technology for fabricating waveguide assemblies by electroforming. : Purpose of the Invention Reducing the time of manufacture of waveguide nodes. five

The drawing shows a device that implements the proposed method for dissolving the mandrel.

The device for dissolving the mandrel consists of a bath 1 filled with a solvent 2, a mandrel 3 is sealed through a hole in the wall of bath 1 into the bath, on which conductive layer 4 is applied. The end of mandrel 3 placed in solvent 2 is freed from of the conductive layer 4. On another tord of the mandrel 3, a heat-electric heater 5 is installed.

The method is carried out as follows.

A conductive layer 4 is applied onto the mandrel by electrolytic deposition. Then the conductive layer 4 is removed from one of the ends by mechanical means. The preform obtained in this way is placed with its own, free from conductive layer 4, inside the bath 1 through an opening in the wall of the bath 1. Extending beyond the bath 1, the end of the preform is heated by a heat electric heater 5. Bath 1 is filled with solvent 2. Due to the heater 5 section of the mandrel 3 in contact with

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The temperature exceeds the solvent temperature 2. In order to achieve the maximum dissolution rate, the temperature of the solvent layer 2, in contact with the heated mandrel 1, is brought to a boil. The remaining mass of solvent 2 at the same time has a temperature close to the ambient temperature. As a result of experiments, it was found that such dissolution conditions allow to obtain the maximum dissolution rate around the perimeter of the cross section of the mandrel 3 at the interface with the conductive layer 4, which leads to an increase in the interaction area of the solvent 2 with the mandrel material 3, etching the mandrel 3 to the full depth and precipitation the mandrel 3 to its complete dissolution, which explains the reduction of the time of dissolution and, consequently, the time of manufacture of waveguide assemblies.

Claims (2)

Invention Formula A method of manufacturing waveguide assemblies, which includes electrolytic deposition of a conductive layer on the mandrel, the subsequent dissolution of the mandrel and simultaneous heating, which is designed to reduce the production time, to heat the portion of the mandrel in contact with the solvent to a temperature. solvent 2, is heated to a temperature higher than 3.5 the solvent. temperature exceeding solvent temperature 2. In order to achieve the maximum dissolution rate, the temperature of the layer of solvent 2 in contact with the heated mandrel 1 is brought to a boil. The remaining mass of solvent 2 at the same time has a temperature close to the ambient temperature. As a result of experiments, it was found that such dissolution conditions allow to obtain the maximum dissolution rate around the perimeter of the cross section of the mandrel 3 at the interface with the conductive layer 4, which leads to an increase in the interaction area of the solvent 2 with the mandrel material 3, etching the mandrel 3 to the full depth and precipitation the mandrel 3 to its complete dissolution, which explains the reduction of the time of dissolution and, consequently, the time of manufacture of waveguide assemblies. Invention Formula A method of manufacturing waveguide assemblies, which includes electrolytic deposition of a conductive layer on the mandrel, the subsequent dissolution of the mandrel and simultaneous heating, which is designed to reduce the production time, to heat the portion of the mandrel in contact with the solvent to a temperature.