EMS

ELECTROMAGNETIC STIRRER

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

Products

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

CVS

Dalmine Tenaris Group

Deutsche
Edelstahlwerke

Feralpi Group

Ferriere Nord Gruppo Pittini

Georgsmarienhütte

Gerdau Sa

Hyundai Steel
Company

Inteco TBR Casting Technologies Gmbh

Lucchini

Ovako AB

Primetals

Riva Group

Sarralle

Tata Steel

Ugitech