Physical Simulation on the Liquid Metal Flow in FC-Mold of Slab Continuous Casting

2011 ◽  
Vol 402 ◽  
pp. 46-50
Author(s):  
Zhen Qiang Zhang ◽  
Hao Jia ◽  
Xiao Wei Zhang ◽  
Kang Deng ◽  
Zhong Ming Ren ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Magnetic Flux ◽  
Continuous Casting ◽  
Flux Density ◽  
Physical Simulation ◽  
Metal Flow ◽  
Magnetic Flux Density ◽  
Flow State ◽  
Control Effect ◽  
Liquid Metal Flow

The flow state and velocity distribution of liquid metal in the FC-Mold and the influence rules by the magnetic flux density have been investigated when electromagnetic brake adopted, applying mercury as medium to simulate molten steel in the continuous casting process. The velocity measurement has been completed by the Ultrasonic Doppler Velocimeter (UDV) under various magnetic distribution and the influence laws of magnetic flux density on the liquid metal flow in the mold has been analyzed. The experimental results indicate that, when the upper and lower magnetic flux density is 0.18T and 0.5T respectively, a preferable control effect can be obtained, not only the free surface fluctuation can be compressed, but also a plug flow can be rapidly formed.

A New Criterion for Optimization the Intermittently Reversing Direction Electromagnetic Stirring in Round Strands Continuous Casting

2013 ◽  
Vol 785-786 ◽  
pp. 1095-1098
Author(s):  
Zuo Sheng Lei ◽  
Xiao Hua Yang ◽  
Ru Jun Wei ◽  
Qi Gao
Keyword(s):  
Magnetic Field ◽  
Liquid Metal ◽  
Continuous Casting ◽  
Physical Simulation ◽  
Dynamic Pressure ◽  
Metal Flow ◽  
Electromagnetic Stirring ◽  
Doppler Velocity ◽  
Time Interval ◽  
Liquid Metal Flow

Liquid metal flow behavior in round strands continuous casting under intermittently reversing direction electromagnetic stirring was measured by ultrasonic Doppler velocity-meter in a physical simulation system in order to investigate the effects of time interval () of periodically reversed magnetic field on the spatial and temporal flow. The results show that under electromagnetic stirring with direction reserved magnetic field, theres a periodically change of the metal flow velocity and rotation direction with the periodically direction changing of the magnetic field. From both the experimental and mathematical model calculation results, it is found that when is nearly equal to the time required for the metal flow speeding to the maximum velocity from still and decreases to zero again, there is a critical value of the rate of dynamic pressure, which means the wash effect of the liquid metal flow. On this point, rate of dynamic pressure was proposed to be a criterion for optimization the processing of electromagnetic stirring.

Study on the liquid metal flow field in FC-mold of slab continuous casting

2015 ◽  
Vol 3 (3) ◽  
pp. 212-220 ◽  
Author(s):  
Zhen-Qiang Zhang ◽  
Jian-Bo Yu ◽  
Zhong-Ming Ren ◽  
Kang Deng
Keyword(s):  
Liquid Metal ◽  
Flow Field ◽  
Continuous Casting ◽  
Metal Flow ◽  
Slab Continuous Casting ◽  
Liquid Metal Flow

Effect of distribution of magnetic flux density on purifying liquid metal by travelling magnetic field

1999 ◽  
Vol 3 (2) ◽  
pp. 157-161 ◽  
Author(s):  
Yunbo Zhong ◽  
Zhongming Ren ◽  
Kang Deng ◽  
Guochang Jiang ◽  
Kuangdi Xu
Keyword(s):  
Magnetic Field ◽  
Liquid Metal ◽  
Magnetic Flux ◽  
Flux Density ◽  
Magnetic Flux Density

scholarly journals Role of the Continuous Casting Forms on the Shape of the Solidified Crust / Wpływ Geometrii Formy Na Kształt Frontu Krzepnięcia Przy Odlewaniu Ciągłym

2015 ◽  
Vol 60 (4) ◽  
pp. 2553-2558
Author(s):  
Z. Lipnicki ◽  
K. Pantoł
Keyword(s):  
Liquid Metal ◽  
Continuous Casting ◽  
Analytical Model ◽  
Thin Plate ◽  
Solidification Front ◽  
Metal Flow ◽  
Axial Direction ◽  
Thickness Profile ◽  
Liquid Metal Flow

An analytical model for the transfer has been development and applied for calculating the shape of the solid thickness profile for continuous casting of a thin plate as an example. The stationary solidification front relative to the crystallizer was received from the superposition of the motions of the liquid metal flow in the axial direction and the solidifying metal in the perpendicular direction. The shape of the solidified crust was analyzed for different casting forms. The results are compared and graphically shown for different selected forms.

scholarly journals Magnetic flux distortion in two-phase liquid metal flow: Model experiment

2016 ◽  
Vol 119 (18) ◽  
pp. 185105 ◽  
Author(s):  
M. Kumar ◽  
W. Bergez ◽  
Ph. Tordjeman ◽  
R. Arinero ◽  
K. Paumel
Keyword(s):  
Liquid Metal ◽  
Magnetic Flux ◽  
Model Experiment ◽  
Flow Model ◽  
Metal Flow ◽  
Two Phase ◽  
Liquid Metal Flow ◽  
Phase Liquid

Numerical Simulation of High Frequency Electromagnetic Field in Soft Contact Continuous Casting Mold

2012 ◽  
Vol 482-484 ◽  
pp. 1534-1537
Author(s):  
Peng Tian ◽  
Xing Juan Wang ◽  
Li Guang Zhu ◽  
Yue Kai Xue ◽  
Wei Chen ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Electromagnetic Field ◽  
Magnetic Flux ◽  
Continuous Casting ◽  
Flux Density ◽  
Three Dimensional ◽  
Current Strength ◽  
Magnetic Flux Density ◽  
Continuous Casting Mold ◽  
Power Frequency

Based on electromagnetic theory, a billet model electromagnetic continuous casting of physical and mathematical were established. The three-dimensional mold for billet electromagnetic field was calculated by finite element method of ANSYS three-dimensional numerical simulation. Then the distribution of the electromagnetic field inside the crystal was gotten. At the same time, the influence of the power frequency and current strength on the intensity and distribution of the magnetic field were simulated. The result shows that the maximum of the electromagnetic flux density lies in the center of induction coil (steel surface in the center of the coil), and the magnetic flux density gradually reduces along the casting direction; the magnetic flux density increases while the power frequency is increasing; the magnetic flux density increases with the increasing of the current intensity.

scholarly journals Analysis of a model for longitudinal electromagnetic stirring in the continuous casting of steel

2020 ◽  
pp. 1-27
Author(s):  
A.S. Nick ◽  
M. Vynnycky ◽  
P.G. Jönsson
Keyword(s):  
Magnetic Flux ◽  
Continuous Casting ◽  
Flux Density ◽  
Three Dimensional ◽  
Theoretical Work ◽  
Travelling Wave ◽  
Electromagnetic Stirring ◽  
Computational Time ◽  
Magnetic Flux Density ◽  
Continuous Casting Of Steel

A recent three-dimensional (3D) model that revisited earlier theoretical work for longitudinal electromagnetic stirring in the continuous casting of steel blooms is analyzed further to explore how the bloom width interacts with the pole pitch of the stirrer to affect the magnetic flux density. Whereas the first work indicated the presence of a boundary layer in the steel near the interface with the stirrer, with all three components of the magnetic flux density vector being coupled to each other, in the analysis presented here we find that the component along the direction of the travelling wave decouples from those in the other two directions and can even be determined analytically in the form of a series solution. Moreover, it is found that the remaining two components can be found via a two-dimensional computation, but that it is not possible in general to determine these components without taking into account the surrounding air. The validity of the asymptotically reduced model solution is confirmed by comparing it with the results of 3D numerical computations. Moreover, the asymptotic approach provides a way to compute the time-averaged Lorentz force components that requires two orders of magnitude less computational time than the fully 3D approach.

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