Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to a current collector strip (12) for a sliding contact device (10) which bears in a prestressed fashion against a contact wire (16), in particular in order to supply current to rail vehicles, having a sliding strip (14) which is arranged on a sliding strip carrier (13) and which has a carbon molding (18) and at least one metallic conducting device (23) 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 (19) 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 (22), formed in the carbon molding, as far as to a contact surface (21) of the sliding strip.

Abstract: 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.

Abstract: The invention relates to a current collector strip (12) for a sliding contact device (10) which bears in a prestressed fashion against a contact wire (16), in particular in order to supply current to rail vehicles, having a sliding strip (14) which is arranged on a sliding strip carrier (13) and which has a carbon molding (18) and at least one metallic conducting device (23) 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 (19) 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 (22), formed in the carbon molding, as far as to a contact surface (21) of the sliding strip.

Abstract: The invention relates to a sliding strip (12) and to a method for producing a sliding strip (12) for a sliding contact device (10) which rests in a prestressed manner against an overhead wire (15), in particular for supplying electrical power to rail vehicles, having a carbon moulding (17) and at least one metallic conduction device, that is arranged in the carbon moulding, in order to locally increase the electrical conductivity, wherein the conduction device has at least one conduction layer (23), which extends on a plane transversely with respect to the sliding direction (18) and in the direction of a prestressing force (19), and is formed by a layer of a metallic conductive material (21), which is arranged on at least one flank of a slot (20) which extends transversely with respect to the sliding direction in the carbon moulding.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A carbon brush for a collector has a recess which is filled with a layer of galvanically applied, copper plating, in which at least one longitudinal wire is provided as a connecting conductor, which is mechanically and electrically linked with the brush through being embedded in and completely surrounded by the copper layer.

Abstract: 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.

Abstract: A carbon sliding strip for a collector has a rupture control device, comprising a pressure line (9) incorporated directly in the carbon strip (1), a device (13) for producing increased pressure in the pressure line and a pressure detector (15), which detects the sudden drop in pressure which occurs if the channel begins to leak. Since at least part of pressure line wall is made directly from the carbon material, the pressure control device responds even to small cracks in the carbon and immediately shows wear and rupture.

Abstract: 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, which, at least at one end, either extends itself over the carbon brush at an angle, its extension which forms an angle being at least partially molded onto the supporting element or embedded into the latter and designed as an electrical connection element, or is linked with an electrical element which extends beyond the carbon brush, forms an angle and is similarly molded onto the supporting element or embedded in the latter. An advantageous process for producing said collector shoe consists producing the carbon brush with excess length, covering it in the metallic layer and then cutting it to length, and consequently bending the projecting metallic layer into the angular shape and embedding it in the directly molded-on supporting element of synthetic material.