Patent Number: 8,788,084

Title: Control method for the meniscus of a continuous casting mold

Abstract: The inflow of liquid metal into a continuous casting mold is set by a closure device. A measured actual meniscus value is fed to a controller determining a closure device target position on the basis of the actual and a corresponding target value. The measured actual value is fed to a disturbance variable compensator. The target position/corrected target position or a corresponding actual value are further fed to the disturbance variable compensator which determines the disturbance variable compensation value. The disturbance variable compensator has a model of the continuous casting mold for determining an expected value. A number of oscillating compensators determine a frequency disturbance proportion. The sum of the frequency disturbance proportions corresponds to the disturbance variable compensation value. The disturbance variable compensator has a jump determiner, by which it determines the jump compensation value by integrating the difference.

Inventors: Niemann; Martin (Erlangen, DE), Weisshaar; Bernhard (Herzogenaurach, DE)

Assignee: Siemens Aktiengesellschaft

International Classification: B22D 11/00 (20060101); B22D 11/16 (20060101); B22D 11/14 (20060101)

Expiration Date: 2022-07-22 0:00:00