Vae Gmbh

Bwg Butzbacher Weichenbau Gmbh

Bwg Gmbh & Co. Kg

Bwg Butzbacher Weichenbau Gesellschaft Mbh & Co. Kg

Walter Kunitz

Gerhard Ratz

Alfred Kais

Stefan Schmedders

Joachim Heilscher

A method for coating a surface of a track component with a coating containing aluminum by means of an arc spraying process. In order to form a coating that exhibits a high resistance to sliding and abrasive wear, aluminum and silicon are applied to the surface in a ratio of 3:2 &#x2266;Al:Si&#x2266;4:1 by an arc spraying process.

Method for coating a surface of a track component, in addition to a track component

The invention relates to a high-strength steel track element, and process of making the steel track element by rolling and heat treating. The steel comprises: 0.3-0.6% C, 0.8-1.5% Si, 0.7-1.0% Mn, 0.9-1.4% Cr, 0.6-1.0% Mo, balance iron and smelting-related impurities. The steel has a bainitic basic structure, a tensile strength of at least 1600 N/mm,and a technical yield strength of at least 1250 N/mm,.

Method for producing high-strength track element and track element thus obtained

A process for manufacture of a railroad track part, in particular a large points part, with rail parts such as a frog point and connecting rails, and the track part obtained. The track part is made of materials of differing composition, one of which is a carbon steel and one of which is an austenitic manganese steel, which are connected by welding and are subsequently subjected to a joint heat treatment. To permit joining of the materials without negative effects on their properties, the parts are joined directly by electron beam welding or indirectly via an intermediate layer comprising a nickel-based alloy, the joined parts then being heated to a temperature T and held over a time t such that for the austenitic manganese steel, solution annealing takes place, and for the carbon steel, austenitizing takes place. The railroad track part is partially quenched after the holding time t at temperature T, such that the austenitic manganese steel is provided in an sustenitic structure and the carbon steel is in a mixed structure with at least bainite and pearlite contents.

Process for producing a permanent way component and such a component

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Wildau, Germany

Walter Kunitz