The element (10) has a charcoal contact shoe (14) located on a carrier (12), where the carrier is made of aluminum. The carrier is formed in a single piece for receiving the charcoal contact shoe. The charcoal contact shoe is provided with a trough-shaped ...

Following mixing and before firing with hydrogen as a protective atmosphere, a compressed profile (1) is roller-compacted continuously. It comprises green (unfired) carbon material (pyrolytic carbon plus additives and binder) with thin metallic conductors ...

The composite material consists of a matrix of burnt carbon with heat-conducting bindings and layered thin electrical conductors within it. The material has a density of less than or equal to 2. 3g/cm3> and a mean specific electrical resistance parallel to...

An abrasive strip has two or more layers. The top layer (TL) is as high as the maximum permissible wear by friction. The whole thickness of the layer under the TL has a different color from the TL either completely or in single zones. In recesses from top ...

The device has a carbon sliding body (1), a bearer (3,3') and an electrical conductor (4). The bearer and electrical conductor are separate components, whereby the material of the bearer is selected from carbon-reinforced compound materials and metals and ...