Detail publikace

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.

Originální název

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

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

continius castng, secondary cooling, spray nozzle

Autoři

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

Vydáno

16. 8. 2018

Nakladatel

Association for Iron & Steel Technology

ISSN

1547-0423

Periodikum

Iron and Steel Technology

Ročník

15

Číslo

9

Stát

Spojené státy americké

Strany od

44

Strany do

50

Strany počet

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"
}