Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Christian Werner

Henning Hanebuth

Dirk Pohle

Philipp Last

Kira Berdien Wuestenberg

Kira Berdien Wüstenberg

A method for establishing a materially bonded current path connection in low-voltage, medium-voltage and/or high-voltage installations having long-term stability includes providing a first part and/or a second part of a current path with a nanomaterial at least in one region. The first part and the second part of the current path are force-lockingly or form-lockingly connected at least in the respective regions. A supply of a reaction energy together with the nanomaterial creates a conductive and bonded connection between the first part and the second part of the current path. A low-voltage installation, a medium-voltage installation and/or a high-voltage installation is also provided.

Low-, medium- and/or high-voltage installation with a bonded current path connection with long-term stability by means of nanomaterials, and method for producing said current path connection

A torch for tungsten inert gas welding is provided, in particular a narrow gap head for tungsten inert gas narrow-gap welding. In a housing made of metal, an electrode unit is retained by an electrode retainer and a cooling device for cooling the electrode unit is present. Liquid cooling medium can be conducted into the electrode retainer and back out of the electrode retainer through the cooling device. The cooling device includes at least one electrically conductive partition within a jacket of the electrode retainer for forming cooling channels, at least the at least one partition being electrically connected to the electrode unit. Furthermore, an outer surface of the electrode retainer is provided with an insulating layer at least in the area of the housing, which housing surrounds the electrode retainer.

Torch for tungsten inert gas welding

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Falkensee, Germany

Christian Werner