Mold

In the continuous casting mold the highly sensible solidification process takes place. The mold consists of water-cooled, oscillating copper plates, the melt solidifies and forms a stable strand shell. In the mold domain, the liquid core is covered by a layer of casting flux resulting in a resistance to heat and reducing friction. The supported strand is cooled with spray water. To guide the strand out of the caster horizontally, it is bent and straightened, either partially or fully solidified, depending on the casting technology. However, product defects caused by uncontrolled mold flow phenomena cannot be reversed further downstream in the casting process. CFD simulations allow to calculate a performance map of any SEN for the full casting range (casting speed, width, thickness, immersion depth, etc.). With this performance map the flow behavior in the mold is much more transparent and can be adapted to the casting condition.

Targets

  • Performance map of SEN
  • Regression model or DoE (Design of Experience) based
  • Full casting parameter range

CSP mold (Large Eddy Simulation - LES)

Velocity and temperature distribution
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Parameter

  • Casting speed
  • Casting width
  • Casting thickness
  • Immersion depth
  • Argon flow rate
  • SEN geometry

Performance map

  • Maximum meniscus velocity
  • Meniscus velocity fluctuation
  • SEN jet velocity
  • SEN jet angle

Mold flow, Vc=1,9 m/min - 2,150 mm x 250 mm

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Mold flow, Vc=0,9 m/min - 1,100 mm x 250 mm

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Mold flow, Vc=1,9 m/min - 800 mm x 250 mm

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