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.

Role of the Contact Layer in Continuous Casting of thin Metal Rods

2014 ◽  
Vol 59 (1) ◽  
pp. 167-172 ◽  
Author(s):  
Z. Lipnicki ◽  
K. Pantoł ◽  
B. Weigand
Keyword(s):  
Continuous Casting ◽  
Metal Flow ◽  
Internal Surface ◽  
Solidification Process ◽  
Axial Direction ◽  
Contact Layer ◽  
Thin Metal ◽  
Transfer Model ◽  
Liquid Metal Flow

Abstract An analytical heat transfer model has been development and applied for calculating the shape of the solid thickness profile for continuous casting of thin metal rods. The stationary solidification front relative to the crystallizer was received from superposition of the motions of the liquid metal flow in the axial direction and the solidifying metal in the radial direction. The shape of the solidified crust depends on several parameters. The influence of the contact layer between the frozen crust and the internal surface of a crystallizer on the solidification process is also studied. The results are presented as an analytical model and are graphically shown for different selected parameters.

Analysis of MHD Pressure Drop in Packed Pebble Bed-Based Blanket for FDS

2013 ◽  
Author(s):  
Hongyan Wang ◽  
Chan Tang
Keyword(s):  
Pressure Drop ◽  
Liquid Metal ◽  
Analytical Model ◽  
Interaction Parameter ◽  
Metal Flow ◽  
Hybrid Reactor ◽  
Pebble Bed ◽  
Critical System ◽  
Liquid Metal Flow ◽  
Flow Through

The Fusion-Driven Sub-critical System as a multifunctional hybrid reactor has been investigated in ASIPP. The liquid metal LiPb flow through a packed pebble bed-based blanket is considered to be one of the blanket candidates. In this contribution, the Magnetohydrodynamics (MHD) pressure drop of liquid metal flow through the packed pebble bed has been calculated and analyzed under various conditions including (a) the size of the packed pebbles; (b) the ratio of occupied room by the packed pebbles to that of liquid metal; and (c) whether the pebbles surface is insulated or not. Furthermore, asymptotic techniques to analyze large Hartmann parameter flow and interaction parameter flow are employed and an analytical model has been developed for the calculations of MHD pressure drop of liquid metal flow in a packed pebble bed. The appropriate method for calculating the MHD effects on the pressure drop through the packed pebble bed-based blanket for the FDS has been presented.

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

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.

Sign in / Sign up

Export Citation Format

Share Document