High-Temperature Simulation of Continuous Casting Mould Phenomena

2020 ◽  
Vol 73 (8) ◽  
pp. 2025-2031 ◽  
Author(s):  
Ashok Kamaraj ◽  
Nimai Haldar ◽  
Premkumar Murugaiyan ◽  
Siddhartha Misra
Keyword(s):  
High Temperature ◽  
Continuous Casting ◽  
Continuous Casting Mould

Modeling and Optimization of Mould Non-Sinusoidal Oscillation Process

2011 ◽  
Vol 291-294 ◽  
pp. 3060-3063
Author(s):  
Hong Ming Wang ◽  
Bo Feng Yang ◽  
Bang Min Song ◽  
Ting Wang Zhang ◽  
Yong Qi Yan
Keyword(s):  
Continuous Casting ◽  
Casting Speed ◽  
Oscillation Frequency ◽  
Oscillation Amplitude ◽  
Sinusoidal Oscillation ◽  
Modeling And Optimization ◽  
Oscillation Process ◽  
Continuous Casting Mould ◽  
Factor Α

A model on non-sinusoidal oscillation of continuous casting mould was established to study the pressure in flux channel. The effects of oscillation parameters on the pressure in flux channel were researched. The non-sinusoidal oscillation parameters were optimized. When the casting speed is 1.8 m·min-1, the optimized oscillation parameters are: non-sinusoidal factor (α) is 0.198, oscillation amplitude (s) is ±4mm and oscillation frequency (f) is 165min-1. When the casting speed is 2.0 m·min-1, the optimized oscillation parameters are: α is 0.186, s is ±4.5mm and f is 155min-1. These optimized oscillation parameters are proved applicable in practice.

scholarly journals Comparison of Four Models of Radiative Heat Transfer Between Flat Surface to Evaluate the Temperature Field Based on Example of the Continuous Casting Mould

2015 ◽  
Vol 60 (1) ◽  
pp. 209-213
Author(s):  
M. Rywotycki ◽  
Z. Malinowski ◽  
K. Miłkowska-Piszczek ◽  
A. Gołdasz ◽  
B. Hadała
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Casting Process ◽  
Cooling Zone ◽  
The Finite Element Method ◽  
Cast Slab ◽  
Continuous Casting Mould ◽  
Heat Transfer By Radiation

AbstractThe paper presents the results of research concerning the influence of radiative heat transfer on the strand and mould interface. The four models for determining the heat transfer boundary conditions within the primary cooling zone for the continuous casting process of steel have been presented. A cast slab - with dimensions of 1280×220 mm - has been analysed. Models describing the heat transfer by radiation have been specified and applied in the numerical calculations. The problem has been solved by applying the finite element method and the self-developed software. The simulation results, along with their analysis, have been presented. The developed models have been verified based on the data obtained from the measurements at the industrial facility.

Continuous casting mould for square steel billet optimised by solidification shrinkage simulation

2010 ◽  
Vol 37 (5) ◽  
pp. 341-346 ◽  
Author(s):  
T. M. Wang ◽  
S. W. Cai ◽  
J. Xu ◽  
Y. Y. Du ◽  
J. Zhu ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Solidification Shrinkage ◽  
Steel Billet ◽  
Continuous Casting Mould

scholarly journals The volatilization behaviour of typical fluorine-containing slag in steelmaking

2020 ◽  
Vol 7 (8) ◽  
pp. 200704
Author(s):  
Zhongyu Zhao ◽  
Junxue Zhao ◽  
Zexin Tan ◽  
Boqiao Qu ◽  
Yaru Cui
Keyword(s):  
Continuous Casting ◽  
Eutectic Point ◽  
Slag System ◽  
Refining Slag ◽  
Performance Control ◽  
Second Stage ◽  
Mould Flux ◽  
And Performance ◽  
Continuous Casting Mould ◽  
Two Stages

It was taken as typical steelmaking fluorine-containing slag systems with the remelting electroslag, continuous casting mould flux and refining slag. The volatilization behaviour of each slag system was analysed by thermogravimetric (TG) and mass spectrometry (MS) detection. The results showed that the remelting electroslag volatilized significantly above 1300°C and the volatiles were mainly CaF 2 , MgF 2 with a small amount of SiF 4 and AlF 3 ; the continuous casting mould flux volatilization was divided into two stages, in the first stage (500°C∼800°C), CaF 2 and Na 2 O reacted to form NaF, and in the second stage (greater than 1200°C), the CaF 2 evaporation was highlighted; for CaF 2 -CaO-based refining slag, the volatilization was the most significant at the eutectic point 84% CaF 2 –16% CaO, and the volatility can be reduced by adding 5% SiO 2 . This research will be guiding significance for the composition and performance control of fluorine-containing slag and metallurgical environmental protection in the steelmaking process.

Features of determining the melting temperature of slag-forming mixtures for continuous casting of steel

2019 ◽  
pp. 51-56
Author(s):  
K. N. Vdovin ◽  
A. A. Ryakhov ◽  
K. G. Pivovarova ◽  
V. V. Tochilkin
Keyword(s):  
High Temperature ◽  
Continuous Casting ◽  
Melting Temperature ◽  
Continuous Casting Of Steel ◽  
Dsc Method

A method for determining the melting temperature of the slag-forming mixture on a high-temperature microscope is described and its accuracy indicators are given. The main parameters affecting the results of determining the melting temperature of slag mixtures using the DSC method, and rational conditions for conducting experiments aimed at determining the liquefaction, melting and spreading temperatures of slag are given. Ill. 3. Ref. 27. Tab. 1.

scholarly journals Influence of Selected Parameters of Continuous Casting in the Electromagnetic Field on the Distribution of Graphite and Properties of Grey Cast Iron

2014 ◽  
Vol 59 (2) ◽  
pp. 747-751 ◽  
Author(s):  
J. Szajnar ◽  
M. Stawarz ◽  
T. Wróbel ◽  
W. Sebzda
Keyword(s):  
Electromagnetic Field ◽  
Cast Iron ◽  
Continuous Casting ◽  
Grey Cast Iron ◽  
Flake Graphite ◽  
Continuous Ingot ◽  
Grey Cast ◽  
Continuous Casting Mould ◽  
Selection Of

Abstract In paper problem concerning modification of grey cast iron EN-GJL-200 Grade, which is realized mainly by intensification of liquid metal movement in horizontal continuous casting mould containing electromagnetic stirrer is presented. The range of studies contains influence of electromagnetic field on morphology of graphite and usable properties i.e. tensile strength, hardness and machinability. Moreover the influence of velocity of ingot pulling on microstructure was analyzed. The results of studies and their analysis show possibility of improvement in quality of grey cast iron continuous ingot firstly in result of elimination of hard spots in structure by properly selection of velocity of ingot pulling and second in result of unification of size, shape and distribution of flake graphite by application of electromagnetic field.

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