PRODUCTS FOR IMPROVING THE EFFICIENCY OF THE CONTINUOUS CASTING PROCESS

STEEL

NON FERROUS ALLOYS

EMS

ELECTROMAGNETIC STIRRER

M-EMS (Mould Electromagnetic Stirrers)
S-EMS (Strand Electromagnetic Stirrers)
F-EMS (Final Electromagnetic Stirrers)

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The electromagnetic stirrers are used in the continuous casting process to improve the product quality and to increase the steel production. According to the position along the casting strand and metallurgical effects, stirrers can be classified mould, strand and final stirrers. The benefits obtained using one or more EMS in combination include surface and sub-surface quality, internal and central soundness as segregation, porosity and central cracks.

NEEDS

  • Cast product metallurgical enhancement
  • Production increase
  • New steel grade production
  • Production rejection reduction

ADVANTAGES

  • Surface and sub-surface quality enhancement
  • Solidification structure improvement
  • Central soundness enhancement
  • Stirrer custom design on new and existing CCM
  • Energy saving design

Benefits

The benefits obtained using one or more EMS in combination are summarized in the table.

EMS type & combination M-EMS M+F-EMS M+S+F-EMS M+S-EMS S-EMS S+F-EMS
Pinhole & blowhole +++ +++ +++ +++ — —
Surface & subsurface cracks +++ +++ +++ +++ — —
Break-out reduction +++ +++ +++ +++ +* +*
Solidification structure & internal crack ++ ++ +++ +++ ++ ++
Centerline segregation, center porosity ++ +++ +++ ++ ++ ++
V segregation — +++ ++ + +** ++

* With S-EMS in high position. ** With S-EMS in low position.

 

Some references

Acciaierie
Valbruna
Acciaierie
Venete spa
Arcelor
Mittal
BGH
Edelstahl
Celsa
Group
Cogne Acciai speciali spa
Dalmine Tenaris Group
Deutsche
Edelstahlwerke
Feralpi
Group
Ferriere Nord e Acciaierie di Verona - Gruppo Pittini
Georgsmarienhütte
Gerdau
Sa
Hyundai Steel
Company
Inteco TBR
Casting Technologies Gmbh
Ovako
AB
Primetals
Riva
Group
Sarralle
Tata
Steel
Ugitech
SAMA