Title

MASTERING MOLD LEVEL CONTROL FOR ALL CONTINUOUS CASTERS USING ADVANCED CONTROLLER SOLUTIONS WITH A NOVEL TECHNOLOGICAL PACKAGE

MASTERING MOLD LEVEL CONTROL FOR ALL CONTINUOUS CASTERS USING ADVANCED CONTROLLER SOLUTIONS WITH A NOVEL TECHNOLOGICAL PACKAGE

Authorship

Mairhofer, Markus; Wieser, Philipp; Pitzer, Walter; Fröhlich, Christian

Mairhofer, Markus

I am this author

Wieser, Philipp

I am this author

Pitzer, Walter

I am this author

Fröhlich, Christian

I am this author

DOI

10.5151/2594-5300-22767

Downloads

Abstract

Nowadays the productivity and high quality products of continuous casting machines are major driving forces in the development of casting technology. A stable and reliable mold level control is one crucial part within the casting process. The latest caster solutions from Siemens Metals Technologies are answering these requirements in terms of mold level control with the technological package Simetal LevCon. Mastering the mold level control with utmost precision to ensure homogeneous shell growth is done by LevCon. The advanced controller has several process models implemented to overcome the different situations during casting. Improved auto-start, the clogging compensation model and the anti bulging model for slab casters are only a few models within. The powerful controller, designed with modern control theory, automatically adapts reliably and extremely quickly to any changing casting condition. Of course, the LevCon can operate with all major electromagnetic or radiometric mold level measurements systems. Furthermore the actuation of the stopper is done precisely by a very compact, fast and accurate inline attached electromechanical linear servo actuator, controlled via LevCon. Moreover, the inline attached drive provides best force transmission as well as being operator friendly during handling, due to the actuator weight of only 9 kg and its ergonomic position. In addition the tundish stopper control mechanism is improved with reduced weight (down to 40%) by higher stiffness compared to former generations.

Nowadays the productivity and high quality products of continuous casting machines are major driving forces in the development of casting technology. A stable and reliable mold level control is one crucial part within the casting process. The latest caster solutions from Siemens Metals Technologies are answering these requirements in terms of mold level control with the technological package Simetal LevCon. Mastering the mold level control with utmost precision to ensure homogeneous shell growth is done by LevCon. The advanced controller has several process models implemented to overcome the different situations during casting. Improved auto-start, the clogging compensation model and the anti bulging model for slab casters are only a few models within. The powerful controller, designed with modern control theory, automatically adapts reliably and extremely quickly to any changing casting condition. Of course, the LevCon can operate with all major electromagnetic or radiometric mold level measurements systems. Furthermore the actuation of the stopper is done precisely by a very compact, fast and accurate inline attached electromechanical linear servo actuator, controlled via LevCon. Moreover, the inline attached drive provides best force transmission as well as being operator friendly during handling, due to the actuator weight of only 9 kg and its ergonomic position. In addition the tundish stopper control mechanism is improved with reduced weight (down to 40%) by higher stiffness compared to former generations.

Keywords

Mold level control; Anti bulging; Model based controller; Electromechanical linear servo actuator; Tundish stopper control mechanism.

Mold level control; Anti bulging; Model based controller; Electromechanical linear servo actuator; Tundish stopper control mechanism.