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Verfahren und Vorrichtung zur Detektion von Porositaet erzeugenden Gasen in Schweissverbindungen

Process to detect the presence of gases emitted on welding.
 
: Ehrhardt, A.; Beersieck, J.; Behler, K.; Hausen, O.

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Frontpage ()

DE 1997-19743223 A1: 19970930
DE 1998-19808275 A: 19980227
DE 19808275 C2: 20030724
G01N0021
Deutsch
Patent, Elektronische Publikation
Fraunhofer ILT ()

Abstract
NOVELTY - A non-contact gas sensor is positioned close to the welding point, detecting the concentration of gases which cause porosity and are produced by the welding process. This concentration is compared with a target value. The sensor is positioned either immediately over the weld point to capture the welding flare and/or at the welding location in the steam capillary. USE - To detect the presence of gases emitted by a welding process. ADVANTAGE - The process enables a manufacturer to create an on-line record of the quality of each weld.

: http://publica.fraunhofer.de/dokumente/PX-38632.html