scholarly journals Heat-transfer and solidification model of continuous slab casting: CON1D

2003 ◽  
Vol 34 (5) ◽  
pp. 685-705 ◽  
Author(s):  
Ya Meng ◽  
Brian G. Thomas
Keyword(s):  
Heat Transfer ◽  
Solidification Model ◽  
Continuous Slab ◽  
Slab Casting ◽  
Heat Transfer And Solidification

Heat Transfer and Solidification Model of Slab Continuous Casting Based on Nail-Shooting Experiments

2015 ◽  
Vol 1088 ◽  
pp. 153-158 ◽  
Author(s):  
An Gui Hou ◽  
Yi Min ◽  
Cheng Jun Liu ◽  
Mao Fa Jiang
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Liquid Core ◽  
Casting Process ◽  
Soft Reduction ◽  
Slab Continuous Casting ◽  
Solidification Model ◽  
Core Length ◽  
Measurement Results ◽  
Heat Transfer And Solidification

A heat transfer and solidification model of slab continuous casting process was developed, and the nail-shooting experiments were carried out to verify and improve the prediction accuracy. The comparison between the simulation and the measurements results showed that, there exists difference between the model predicted liquid core length and the calculated liquid core length according to the measurement results of the solidification shell thickness. In the present study, the value of constant a in the heat transfer coefficient calculation formula was corrected through back-calculation, results showed that, the suitable value of a is 31.650, 33.468 and 35.126 when the casting speed is 0.8m·min-1, 0.9m·min-1 and 1.0m·min-1 respectively, which can meet the liquid core length of the measurement results. The developed model built a foundation for the application of dynamic secondary cooling, and dynamic soft reduction.

Modelling of air-mist spray cooling heat transfer for continuous slab casting

2009 ◽  
Vol 22 (1-4) ◽  
pp. 39-42 ◽  
Author(s):  
F. Ramstorfer ◽  
J. Roland ◽  
C. Chimani ◽  
K. Mörwald
Keyword(s):  
Heat Transfer ◽  
Spray Cooling ◽  
Continuous Slab ◽  
Slab Casting

Steel Structure Prediction for Continuous Steel Casting by Means of a Parallel GPU-Based Heat Transfer and Solidification Model

2015 ◽  
Author(s):  
Lubomír Klimeš ◽  
Josef Štětina ◽  
Tomáš Mauder
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Structure Prediction ◽  
Steel Production ◽  
Steel Structure ◽  
Production Method ◽  
Micro Structure ◽  
Solidification Model ◽  
Minimum Number ◽  
Heat Transfer And Solidification

Continuous casting of steel is currently a predominant production method of steel, which is used for more than 95% of the total world steel production. An effort of steelmakers is to cast high-quality steel with a desired structure and with a minimum number of defects, which reduce the productivity. The paper presents our developed GPU-based heat transfer and solidification model for continuous casting, which is coupled with a submodel used for the prediction of the steel micro-structure. The model is implemented in CUDA/C++, which allows for rapid computing on NVIDIA GPUs. The time-dependent temperature distribution calculated by the thermal model is iteratively passed to the submodel for the steel micro-structure prediction. The structural submodel determines the spatially-dependent rates of temperature change in the strand, for which the interdendritic solidification model IDS predicts the micro-structure of steel. The paper presents preliminary simulation results for the steel grade used for pressure vessel plates, which is sensitive to rapid cooling rates.

scholarly journals Heat transfer and solidification processes of alloy melt with undercooling: II. Solidification model

2006 ◽  
Vol 54 (3) ◽  
pp. 765-771 ◽  
Author(s):  
Hideaki Yoshioka ◽  
Yukio Tada ◽  
Kanji Kunimine ◽  
Taira Furuichi ◽  
Yujiro Hayashi
Keyword(s):  
Heat Transfer ◽  
Solidification Model ◽  
Solidification Processes ◽  
Heat Transfer And Solidification

A Heat Transfer and Solidification Model of Continuous Cast

2010 ◽  
Vol 154-155 ◽  
pp. 1431-1434
Author(s):  
Qi Zhang ◽  
La Dao Yang
Keyword(s):  
Heat Transfer ◽  
Experimental Data ◽  
Material Properties ◽  
Shell Thickness ◽  
Phase Changes ◽  
Continuous Cast ◽  
Solidification Model ◽  
Temperature Distributions ◽  
Linear Material ◽  
Heat Transfer And Solidification

A model of heat transfer and solidification of continuous cast has been established, including boundary conditions in the mold and spray zones. A finite difference method was used for the numerical simulation. The model calculates the shell thickness and temperature distributions of the slab real time. The importance effect of non-linear material properties of specific heat and thermal conductivity as well as phase changes during solidification is treated. The adequacy of model has been proved by industrial and experimental data. The model can be applied to solve some practical problems in continuous cast.

Effect of Mushy Zone Permeability on the Formation of Centerline Segregation in Slab Casting

2014 ◽  
Vol 790-791 ◽  
pp. 296-301 ◽  
Author(s):  
Mihály Réger ◽  
Balázs Verő ◽  
Róbert Józsa ◽  
Zsolt Csepeli
Keyword(s):  
Liquid Motion ◽  
Centerline Segregation ◽  
Solidification Model ◽  
Liquid Feeding ◽  
Slab Casting ◽  
Continuously Cast ◽  
Segregation Level ◽  
Complex Mathematical Model ◽  
Semi Empirical ◽  
Heat Transfer And Solidification

A complex mathematical model characterizing the centerline segregation level in the mid region of continuously cast slabs was developed. The basic heat transfer and solidification model connected to the semi-empirical liquid feeding model (LMI - Liquid Motion Intensity model) gives the possibility to estimate the centerline segregation parameters of slab cast under industrial circumstances. Solid shell deformation changes the volume of the space available for the liquid inside the slab and hereby also changes the conditions of liquid supply.

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