Laboratory Investigation of Tomography-Controlled Continuous Steel Casting

Ivan Glavinić, Imamul Muttakin, Shereen Abouelazayem, Artem Blishchik, Frank Stefani, Sven Eckert, Manuchehr Soleimani, Iheb Saidani, Saša Kenjereš, More Authors

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)
45 Downloads (Pure)

Abstract

More than 96% of steel in the world is produced via the method of continuous casting. The flow condition in the mould, where the initial solidification occurs, has a significant impact on the quality of steel products. It is important to have timely, and perhaps automated, control of the flow during casting. This work presents a new concept of using contactless inductive flow tomography (CIFT) as a sensor for a novel controller, which alters the strength of an electromagnetic brake (EMBr) of ruler type based on the reconstructed flow structure in the mould. The method was developed for the small-scale Liquid Metal Model for Continuous Casting (mini-LIMMCAST) facility available at the Helmholtz-Zentrum Dresden-Rossendorf. As an example of an undesired flow condition, clogging of the submerged entry nozzle (SEN) was modelled by partly closing one of the side ports of the SEN; in combination with an active EMBr, the jet penetrates deeper into the mould than when the EMBr is switched off. Corresponding flow patterns are detected by extracting the impingement position of the jets at the narrow faces of the mould from the CIFT reconstruction. The controller is designed to detect to undesired flow condition and switch off the EMBr. The temporal resolution of CIFT is 0.5 s.

Original languageEnglish
Article number2195
Number of pages15
JournalSensors (Basel, Switzerland)
Volume22
Issue number6
DOIs
Publication statusPublished - 2022

Keywords

  • clogging
  • contactless inductive flow tomography
  • continuous casting
  • EMBr
  • flow control
  • inductive measurements
  • mini-LIMMCAST

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