Hoffmann & Co. Elektrokohle Gesellschaft Mbh

Hoffmann & Co Elektrokohle Ag

Schunk Kohlenstofftechnik Gmbh

Schunk Carbon Technology Gmbh

Schunk Hoffman Carbon Technology Ag

Hoffmann & Co., Electrokohle Ag

Hoffman & Co Elektrokohle Aktiengesellschaft

Hoffman & Co. Elektrokohle Gesellschaft M.b.h

Schunk Hoffmann Carbon Technology Ag

Klaus Reiser

Johann Hoell

Peter Hoffmann

Herbert Grabner

Hans Rastl

Stefan Schneweis

Florian Huber

Günter Rinn

Martin Ganzel

Johann Angerer

Conrad Reynvaan

Klaus Scheutz

Anton Gratzer

Klaus Dipl-Ing HÖLL

The invention relates to a method for producing a latent heat accumulator of expanded graphite by expanding a graphitic starting material. The invention is characterized in that the graphitic starting material is introduced into a mold which corresponds at least in sections to the negative mold of the latent heat accumulator, and that the graphitic starting material is subsequently expanded in the closed mold.

Method for producing a latent heat accumulator and latent heat accumulator

The invention relates to a method for producing a friction lining material as well as a friction lining material having a porous body, whose pores are filled with a filling material, said porous body being formed on the basis of petroleum coke.

Friction lining material and method for producing a friction lining material

The invention relates to a current collector strip () for a sliding contact device () which bears in a prestressed fashion against a contact wire (), in particular in order to supply current to rail vehicles, having a sliding strip () which is arranged on a sliding strip carrier () and which has a carbon molding () and at least one metallic conducting device () which is arranged in the carbon molding and has the purpose of bringing about locally increased conductivity, wherein the conducting device is formed as at least one disc-shaped conducting device which extends transversely to a sliding direction () and in the direction of a prestressing force in a plane and which is connected to the sliding strip carrier and extends in a slot (), formed in the carbon molding, as far as to a contact surface () of the sliding strip.

Current collector strip for a sliding contact device

A sliding strip and a method for producing a sliding strip for a sliding contact device which rests in a prestressed manner against an overhead wire includes a carbon molding and at least one metallic conduction device arranged in the carbon molding. The conduction device has at least one conduction layer extending on a plane transversely with respect to a sliding direction and in a direction of a prestressing force. The conduction device is formed by a layer of a metallic conductive material arranged on at least one flank of a slot which extends transversely with respect to the sliding direction in the carbon molding.

Sliding strip for a sliding contact device and method for producing a sliding strip

The embodiments of the invention relate to an electrode for electrolysis comprising an electrode substrate and a coating of the electrode substrate with a polycrystalline diamond material, that the electrode substrate consists of a base body of carbon material and at least one contact layer of the electrode substrate carrying the coating consists of a non-metallic, electrically conductive material.

Electrode for electrolysis

In order to impregnate a porous workpiece with a liquid impregnating agent, the pre-manufactured workpiece is arranged in an injection mould or diecasting mould and the liquid impregnating agent is introduced into the mould with the aid of a commercially available injection moulding or diecast moulding apparatus. To limit the need for post impregnation cleaning and/or shaping, the mould cavity is configured to closely fit the shape of the pre-manufactured workpiece. The impregnating agent may be a natural or synthetic lubricant, a plastic or, more commonly, a molten metal or metal alloy.

Method of impregnating porous workpieces

Carbon brush for collector

A collector shoe for a collector with a carbon brush and a support has, between the carbon brush and supporting element, a galvanically applied metallic layer. The galvanic layer anchors a head portion of a conductor member to the carbon brush. The conductor member has a shaft portion which projects through the support and secures the carbon brush to the support, as well as, establishes an electrical connection to the carbon brush.

Collector shoe for collector and process for producing it

Sliding strip for collector with rupture detection device

Growing community of inventors

Bad Ischl, Austria

Klaus Reiser