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- Title
Development of indices for quantification of nozzle clogging during continuous slab casting.
- Authors
Girase, N. U.; Basu, S.; Choudhary, S. K.
- Abstract
Deposition of alumina inclusions inside the submerge entry nozzle is a long standing problem in continuous casting of aluminium killed steel. Clogging of the casting nozzle severely affects productivity and also causes degradation of product quality. Unfortunately, very few numerical tools are available for precise quantification of the magnitude of clogging. Tools for quantifying the extent of clogging were developed during the present work and have been integrated with the control system of a running continuous slab casting shop. Reasonable match has been observed between the estimation from the developed program and the actual observations in the casting shop and subsequent products. In addition to process control, the tools were also found useful for comparing the castability of different steel grades. This feature has been utilised to study nozzle clogging during casting of steel grades that are commonly believed to have poor castability.
- Subjects
NOZZLES; ALUMINUM oxide; PRODUCT quality; PRODUCTION control; CHEMICAL molding
- Publication
Ironmaking & Steelmaking, 2007, Vol 34, Issue 6, p506
- ISSN
0301-9233
- Publication type
Article
- DOI
10.1179/174328107X168075