Fronius International Gmbh

Harald Langeder

Heribert Pauser

Manfred Bruckner

Markus Steinmaurer

Wolfgang Haberler

Walter Wimroither

Florian Silbermayr

Erich Eglseder

Max Stöger

Wilhelm Oeller

Michal Heinrich

Georg Binder

Wilhelm ÖLler

The invention relates to a cleaning apparatus () for cleaning welding torches (), comprising at least two coils () and an opening () in order to introduce the welding torch () for the electromagnetic cleaning thereof, a supply device () connected to the coils (), and optionally an apparatus for applying a cleaning fluid to the tip of the welding torch (), wherein preferably all components are disposed in a common housing () and regulated by a controller (), and to a corresponding method for cleaning welding torches (). In order to increase the cleaning quality and the cleaning range, according to the invention the coils () can be supplied independently of each other with electrical energy by the supply device () for the purpose of cleaning the welding torch (), and a cooling apparatus () is provided for cooling the coils ().

Apparatus and method for cleaning welding torches

The invention relates to a vapor plasma burner () comprising a burner handle () and a burner base (). Inside the burner base (), a liquid feed pipe (), a heating device (), a burner chamber (), a cathode (), connected to a cathode support (), and an anode () which is configured as a nozzle () and has an exit opening () are arranged. The invention also relates to a cathode () and to a nozzle () for such a vapor plasma burner (). The aim of the invention is to provide a vapor plasma burner () that can be optimally ignited and the wearing parts of which can be easily removed. For this purpose, the cathode support () is configured together with the cathode () as an axially displaceable piston and is connected to a spring element () in such a manner that the cathode (), in the rest position, is forced against the nozzle () and that the cathode support () communicates with the liquid feed line () in such a manner that during operation, the cathode () is lifted off the nozzle () when water is supplied so that an electric arc can be ignited between the cathode () and the anode ().

Vapor plasma burner

The invention relates to a steam cutting device (), comprising at least one container (), for a fluid (), a current source (), a controller () and a burner (), connected to the container (), by means of a supply line (), for generation of a steam jet exiting through a nozzle. According to the invention, such a steam cutting device (), in which no, or almost no fluid is found in the burner in stand-by mode or after switch-off of the steam cutting device such that post-evaporation can be avoided, may be achieved, whereby a relief line () is connected to the supply line (), for relieving the supply line () and/or the burner (), on or after the ending of the steam cutting process. A regulation valve () can be provided in the relief line, which can be connected to the controller () itself coupled to a sensor (), for determining the pressure in the burner ().

Steam cutting device

The invention relates to a protective cap for at least one contact pipe of a welding torch, the pipe or pipes having a respective bore for guiding and contacting a respective welding rod that is fed through the pipe or pipes. The cap comprises a housing consisting of or coated with a poor electrically conductive material, for receiving the contact pipe and a bore, which allows the welding rod to emerge. The aim of the invention is to increase the service life of a contact pipe or a welding torch comprising at least one contact pipe of this type. To achieve this, at least two openings are provided in the housing for receiving at least two contact pipes and each opening is connected to one respective bore in the housing for receiving at least two contact pipes and each opening is connected to one respective bore in the housing. Each bore is positioned in such a way that it corresponds with the course of the welding rod in the contact pipe, once the protective cap has been mounted. This permits a welding rod to be fed through the bores of each contact pipe and each bore of the protective cap and to emerge at a welding point.

Protective cap for a contact pipe in a welding torch in addition to a welding torch equipped with said cap

Growing community of inventors

Pettenbach, Austria

Harald Langeder