Ksb Aktiengesellschaft

Ksb Se & Co. Kgaa

Smr Patents Sarl

Bernd Schramm

Alexander Boehm

Helmut Piringer

Holger Rauner

Joachim Schullerer

Adrian Stein

Stephan Braun

Karl-Heinz Koefler

Alexander Puetterich

Stefan Laue

Gerd Ebelt

Bjoern Lindell

Alexander BÖHM

Karl-Heinz KÖFLER

Alexander PÜTTERICH

Björn Lindell

Ursula Kronfeld

Georg Herzing

Alexander Bohm

A method for producing components from a duplex steel, and a component formed by the method, are provided. A powder-type duplex steel starting material including an austenitic phase and a ferritic phase is laser melted in successive layers to form a component. The melted and re-solidified component is then subjected to heat treatment to obtain solution annealing of the austenitic phase at a temperature range of between 850&#xb0; C. and 1,100&#xb0; C. for a predetermined dwell time, after which the component is cooled and the component has a grain size and grain size number G of at least 9 according to ASTM. The grain size and the grain size number G of the austenitic phase are influenced by the selection of the respective maximum temperature and/or the dwell time of the maximum temperature.

Method for producing components from a duplex steel, and components produced using said method

A fluid conducting system with cathodic corrosion protection is provided for at least one device that influences and/or acts upon a flow rate, such as a pump and/or valve. The device includes at least one connection device such as a device connection flange. At least one flow rate guiding device such as a pipe includes a connection means such as a pipe connection flange. The system includes annular anodes arranged between the connection devices and connection means, where anodes are electrically connected by electrical conducting lines to a monitoring device. The internal diameter of the anodes is preferably equal to the internal diameter of the flow rate guiding device and/or the inner diameter of the inlet and/or outlet of flow influencing device.

Fluid-conducting system with cathodic corrosion protection

Growing community of inventors

Frankenthal, Germany

Bernd Schramm