Billet Casting at Severstal, Cherepovets, Russia

摘要

As part of a test campaign, Siemens replaced the existing electro-mechanical mold oscillator with a DynaFlex hydraulic oscillator on one of the strands, adapted the strand-containment system and modified the secondary-cooling system in order to demonstrate high-speed casting operations. The replacement of the electro-mechanical oscillator was necessary due to the limitations of this equipment unit at higher casting speeds with respect to increased vibrations and oscillation deviations, in addition to the inability to adjust the oscillation stroke of the unit during operations to satisfy the actual casting requirements. The casting tests were performed on a 100 X 100-mm billet and casting speeds in excess of seven meters per minute could be demonstrated - more than one meter per minute faster than during normal operations with the existing facility.