Numerical Simulation for Collision and Aggregation of Inclusions in a Slab Continuous Caster

2007 ◽  
Vol 78 (9) ◽  
pp. 704-707 ◽  
Author(s):  
Hong Lei ◽  
Ji-Cheng He
Keyword(s):  
Numerical Simulation ◽  
Continuous Caster ◽  
Slab Continuous Caster

scholarly journals Combined Effects of EMBr and SEMS on Melt Flow and Solidification in a Thin Slab Continuous Caster

Metals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 948
Author(s):  
Changjun Wang ◽  
Zhongqiu Liu ◽  
Baokuan Li
Keyword(s):  
Continuous Caster ◽  
Solidification Rate ◽  
Potential Method ◽  
Suppressive Effect ◽  
Thin Slab ◽  
Dispersion Effect ◽  
Melt Flow ◽  
Simultaneous Application ◽  
Iron And Steel ◽  
Slab Continuous Caster

Electromagnetic fields have emerged as powerful tools for addressing current problems in thin slab continuous casting processes in the iron and steel industry. Substantial studies have been undertaken on the fundamental effects of electromagnetic brakes (EMBr) and strand electromagnetic stirring (SEMS). However, little attention has been focused on melt flow and solidification in a thin slab continuous caster with the simultaneous application of an EMBr and SEMS. The present study aimed to predict transient fields in the caster using a large eddy simulation and an enthalpy-porosity method. The electric potential method was applied in the braking process, and the conductivity change with solidification was considered. The suppressive effect on the intensity of the nozzle jet, the balance effect on the mold flow, and a dispersion effect could be observed. The dispersion effect was a novel finding and was beneficial to a flatter nozzle jet. In contrast, SEMS caused a highly turbulent flow in the strand. A large vortex could be observed in the casting direction. The solidified shell became more uniform, and the solidification rate became obviously slower. These findings supported the view that a high-quality thin slab can be produced by the application of an EMBr and SEMS.

Investigation on New Submersed Entry Nozzle in Slab Caster

2011 ◽  
Vol 287-290 ◽  
pp. 2768-2771
Author(s):  
Yu Ma ◽  
Jing She Li ◽  
Xiao Chuan Lin ◽  
Li Yuan Sun
Keyword(s):  
Penetration Depth ◽  
Continuous Caster ◽  
Surface Velocity ◽  
Slab Caster ◽  
Slab Continuous Casting ◽  
Outlet Angle ◽  
Surface Turbulence ◽  
Continuous Casting Mould ◽  
Better Than ◽  
Slab Continuous Caster

The fluid flow in the mould of slab continuous caster was investigated by 1:1 ratio water modeling simulation system. The effects of outlet angle of Bilateral and quadripuntal SEN on surface turbulence, penetration depth and surface velocity were discussed and the regularity of the flow field for change of outlet angle in slab continuous casting mould was obtained. The results show that the case C (both α and β are downward angle and α<β) is better than the usual SEN, for this kind of SEN can stabilize surface turbulence and reduce penetration depth and get moderate velocity.

Prediction of the Position on Solidification End Point of Continuous Caster

2011 ◽  
Vol 421 ◽  
pp. 67-70
Author(s):  
Ting Sheng Tu ◽  
Hong Liang Wang ◽  
Zuo Sheng Lei ◽  
Zhong Ming Ren
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Continuous Casting ◽  
Casting Speed ◽  
Continuous Caster ◽  
Shooting Technique ◽  
Soft Reduction ◽  
End Point ◽  
Continuous Casting Slab ◽  
Business Software

Solidification heat transfer in continuous casting slab was simulated with the business software CALCOSOFT. The position on solidification end point which obviously effect on soft reduction was predicted and verified by nail—shooting technique. It is shown from the numerical simulation that the casting speed affected the position significantly: the solidification end point moved backward 3 or 4m as the casting speed increased by 0.2m /min, while the casting temperature has little effect that the solidification end point moved backward only 0.2 or 0.25mm as it increased 6°C or 7°C.

Measurement and Research of Oscillating State of Hydraulic Oscillation in Slab Continuous Casting

2011 ◽  
Vol 130-134 ◽  
pp. 2280-2283
Author(s):  
Yong Ma ◽  
Yu Cheng Wu ◽  
Wen Lin Chen ◽  
Xin Fang Wang ◽  
Ya Pei Zhao
Keyword(s):  
Continuous Casting ◽  
Evaluation Method ◽  
Continuous Caster ◽  
Slab Continuous Casting ◽  
Mold Oscillation ◽  
Sinusoidal Waveform ◽  
Left And Right ◽  
Hydraulic Oscillation ◽  
The Stability ◽  
Slab Continuous Caster

The stability of mold oscillation can directly influence on slab surface quality and operational safety in continuous casting. In recent years, the hydraulic oscillation is developed and applied as the driven equipment of mold oscillation. In the present work, based on the slab continuous caster of hydraulic oscillations, the displacement and other parameters of hydraulic oscillator are measured and the evaluation method of oscillation is studied. The displacement difference and phase difference of oscillation with sinusoidal waveform and non-sinusoidal waveform are analyzed. Especially, the dynamic characteristics of the driving force of left and right cylinders are evaluated. The results indicated that the hydraulic oscillator is quite a good device in terms of precision. The method proposed may be useful for evaluating oscillators.

scholarly journals Steel Flow Control with Travelling Magnetic Field for Slab Continuous Caster Mold

2000 ◽  
Vol 86 (4) ◽  
pp. 271-277 ◽  
Author(s):  
Jun KUBOTA ◽  
Noriko KUBO ◽  
Makoto SUZUKI ◽  
Toshio ISHII ◽  
Ryuzo NISHIMACHI ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Flow Control ◽  
Continuous Caster ◽  
Steel Flow ◽  
Slab Continuous Caster
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