Publication detail

A Complex Approach for Secondary Cooling Improvements Using Sophisticated Spray Nozzle Analyses in Various ArcelorMittal USA Casters

Moravec, R. Blazek, K. Yin, H. Gregurich, N. Horsky, J.

Original Title

A Complex Approach for Secondary Cooling Improvements Using Sophisticated Spray Nozzle Analyses in Various ArcelorMittal USA Casters

Type

journal article in Scopus

Language

English

Original Abstract

ArcelorMittal USA operates various continuous casters that produce a wide spectrum of steel grades. These casters were built in the 1980s or earlier when the knowledge of the effects of specific nozzle designs on the resulting slab surface temperature in the secondary cooling zone was not as sophisticated as today. Today, procedures such as off-line nozzle testing using an impact pressure measurement for spray footprint analysis, heat transfer coefficient (HTC) measurement with realistic casting conditions, and off-line and on-line slab surface temperatures calculations with implementation of directly measured HTCs are the most important steps in the process of analyzing the effect of nozzles used for secondary cooling at ArcelorMittal USA. The results of these types of analyses achieved by close cooperation within R&D, Operations, Quality and Operation Technology departments produce slabs with improved surface quality. This type of analysis can determine which sprays are performing poorly and lead to significant improvements in slab quality. Examples of this complex approach for Indiana Harbor and Burns Harbor casters will be discussed to show improvements in secondary cooling efficiency and slab quality.

Keywords

continius castng, secondary cooling, spray nozzle

Authors

Moravec, R.; Blazek, K.; Yin, H.; Gregurich, N.; Horsky, J.

Released

16. 8. 2018

Publisher

Association for Iron & Steel Technology

ISBN

1547-0423

Periodical

Iron and Steel Technology

Year of study

15

Number

9

State

United States of America

Pages from

44

Pages to

50

Pages count

7

BibTex

@article{BUT149450,
  author="Moravec, R. and Blazek, K. and Yin, H. and Gregurich, N. and Horsky, J.",
  title="A Complex Approach for Secondary Cooling Improvements Using Sophisticated Spray Nozzle Analyses in Various ArcelorMittal USA Casters",
  journal="Iron and Steel Technology",
  year="2018",
  volume="15",
  number="9",
  pages="44--50",
  issn="1547-0423"
}