Siemens Aktiengesellschaft

Siemens Mobility Gmbh

Manfred Ochsenkühn

Robert Greiner

Heinrich Zeininger

Maximilian Kunkel

Klaus Büttner

Matthias Warmuth

Steffen Lang

Lothar Schön

Peter Kummeth

Heinrich Kapitza

Peter Massek

Niels Müller

Marek Maleika

Florian Schemmel

Toni Kress

Marco Cerny

Cord Albrecht

Sonja Wolfrum

Jens Jähnicke

Cornelius Kühn

Sebastian Kallenberg

The invention relates generally to the field of insulating electrical conductors against partial discharge in the medium- and high-voltage ranges. In particular, the invention relates to an insulating system for an electric machine, in particular a rotating electric machine such as an electric motor and/or a generator. The invention provides for the first time a substitute for the conventionally used mica as a barrier material in an insulating system, such as the main insulation of rotating electric machines such as motors and/or generators. The substitute is based on a polyether-imide/siloxane copolymer, which can be processed two-dimensionally, for example by surface extrusion. In this way, sheets are produced and, after being processed in sheet form or as a laminate, can be used as planar insulating materials, or cut as strips, in insulating systems.

Insulating system made of solid insulating material and impregnating resin

Various embodiments of the teachings herein include a compound for use in the SLS process comprising: a semicrystalline plastic selected from the group consisting of: polyaryletherketones -PAEK-, polyetherketoneketone -PEKK-, polyetherketone -PEK-, polyetheretherketone -PEEK-; and an amorphous plastic selected from the group consisting of: polyetherimide -PEI-, polyethersulfone -PES-, polyphenylenesulfone -PPSU-, and polysulfone -PSU-. Both the semicrystalline plastic and the amorphous plastic be present as a mixture in the compound.

Material for processing in selective laser sintering method

Various embodiments may include a powder for processing in an SLS method comprising a blend of a first material and a second material. The first material comprises at least one of an amorphous high temperature-resistant thermoplastic or a liquid-crystalline polymer and the second material comprises a semicrystalline material. The blend exhibits a crystallization melting point.

Plastic-based materials for processing by means of additive manufacturing

The invention relates to a rotor () for a reluctance machine (E), wherein the rotor () has a laminate stack () with layers (), each of the layers having a plurality of flux-conducting portions () which are formed in each case by a magnetically conductive rotor lamination () and extend between two adjacent d-axes and transversely to a respective q-axis (), wherein the flux-conducting portions () are separated from each other by in each case a flux barrier () which is filled with a casting compound. The aim of the invention is to additionally provide a permanent magnetic excitation in the rotor () without degrading the reluctance of the rotor. To this end, the invention provides that the casting compound comprises permanently magnetic particles () in one or more or each of the flux barriers ().

Reluctance rotor having an additional inherent magnetization

The invention relates to a metal/plastic hybrid and to a shaped body produced therefrom. By combining metallic additives in plastic, it has been shown for the first time that specific volume resistances of less than 10&#x3a9;cm can be realized while the compounds have, at the same time, a good processability during the injection molding process.

Metal/plastic hybrid and shaped body produced therefrom

The invention relates to flexible compounds that are made of a thermoplastic elastomer and a filler having increased thermal conductivity, and to flexible heat-conducting tubes produced on the basis thereof that are especially useful as heating or cooling tubes. The inventive mixtures have a thermal conductivity in the range of from 0.5 to 2 W/mK.

Heat-conducting thermoplastic compounds and uses thereof

A method involves sheathing a superconductor with a thermoplastic insulation material on all sides. The conductor exits a guide channel that extends in the propulsion direction. A melt hose is extruded from the molten insulation material in the propulsion direction and through a nozzle that has an outlet which embraces the conductor, whereby a distance is kept on all sides. The melt hose is stretched via the propulsion of the conductor. The hose is drawn to the surface of the conductor and is compacted by cooling. The method can especially be used for sheathing band-shaped high-T-superconductors. Materials having processing temperatures between 200&#xb0; C. and 450&#xb0; C., are selected as thermoplastic insulation materials.

Method for insulating a high-tc-superconductor and the use of said method

A multi conductor (L) arrangement for transferring energy and/or data. The system contains a plurality of conductor elements () respectively comprising a conductor (A) which is surrounded by an insulation () and an insulating sleeve (), the conductor elements being mechanically connected to each other. Elements () for contacting the conductive elements are also provided. The system is provided with a flexible tubular or pipe-shaped support () made of an insulating material having a maximum thickness (D) of 1 mm, the conductive elements (I) are arranged on the inside wall of the support, and the insulating sleeves () of the conductive elements have a respective thickness (d) which is at the most equal to the thickness (D) of the support. A thermoplastic elastomer is preferably used as an insulating material.

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Berg, Germany

Manfred Ochsenkühn