METHOD FOR SEALING A DOUBLE-WALLED GLASS TUBE IN A VACUUM-TIGHT MANNER

METHOD FOR SEALING A DOUBLE-WALLED GLASS TUBE IN A VACUUM-TIGHT MANNER

The invention relates to a method and a device (200, 300, 400) for closing a double-walled glass tube (206) in a vacuum-tight manner, in particular a production method for producing solar collectors. By means of a provided vacuum chamber, in which a retaining element is fastened and in which a heati...

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Hauptverfasser: PIRINGER, HELMUT, LAURE, STEFAN, STEINWANDEL, JUERGEN
Format: Patent
Sprache:eng ; fre
Schlagworte:
BLASTING
CHEMISTRY
GLASS
HEATING
LIGHTING
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MECHANICAL ENGINEERING
METALLURGY
MINERAL OR SLAG WOOL
RANGES
SOLAR HEAT COLLECTORS
SOLAR HEAT SYSTEMS
VENTILATING
WEAPONS
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creator PIRINGER, HELMUT
LAURE, STEFAN
STEINWANDEL, JUERGEN
description The invention relates to a method and a device (200, 300, 400) for closing a double-walled glass tube (206) in a vacuum-tight manner, in particular a production method for producing solar collectors. By means of a provided vacuum chamber, in which a retaining element is fastened and in which a heating conductor (202, 204, 301, 302, 401, 402) is arranged, electroconductive heating and subsequent deformation of the double-walled glass tube (206) can be achieved. No additional materials such as metal auxiliary elements or solders are needed. Simple installation in the vacuum chamber is possible and a minimal required vacuum feed-through for the current supply of a heating conductor is needed. The direct heat transfer to the double-walled glass tube (206) and the accordingly fast process control make it possible to securely close a double-walled glass tube (206) of a thermal solar collector under vacuum using simple means.
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subjects BLASTING
CHEMISTRY
GLASS
HEATING
LIGHTING
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MECHANICAL ENGINEERING
METALLURGY
MINERAL OR SLAG WOOL
RANGES
SOLAR HEAT COLLECTORS
SOLAR HEAT SYSTEMS
VENTILATING
WEAPONS
title METHOD FOR SEALING A DOUBLE-WALLED GLASS TUBE IN A VACUUM-TIGHT MANNER
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