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1. (WO2014202058) DEVICE AND METHOD FOR PRODUCING VACUUM TUBES

Pub. No.:    WO/2014/202058    International Application No.:    PCT/DE2014/100206
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Sat Jun 21 01:59:59 CEST 2014
IPC: C03B 23/045
C03B 23/13
C03B 23/207
B23B 31/117
C23C 14/56
Applicants: DR. LAURE PLASMATECHNOLOGIE GMBH
Inventors: LAURE, Stefan
Title: DEVICE AND METHOD FOR PRODUCING VACUUM TUBES
Abstract:
The invention proposes a device and a method for producing vacuum tubes for solar thermal installations. The device is equipped with a vacuum chamber (4), with a transportation device (6), with a rotatably mounted outer tube holding device (10, 10a, 110) which engages around the outside of and fixes an outer tube (2) in the final position, wherein the outer tube holding device (10) is mounted so as to be rotatable, with a rotatably mounted inner tube holding device (20) which holds the inner tube in its final position, with a rotation device (30, 40, 130) which drives the outer tube holding device (10, 10a, 110) and/or the inner tube holding device (20) for rotation about an axis of rotation (33, 133), and with at least one laser (70, 80), the laser beam of which is directed toward the open end of the outer tube (2) and the open end of the inner tube (3) in the final position and which fuses the material of the outer tube (2) and of the inner tube (3) at the open ends thereof and connects said outer tube and inner tube to one another.