# model studies of plasma heating in the continuous casting

### Technical Report UDC 621 . 746 . 049 53 . 072

the heat transfer during a continuous casting operation by compar-ing the structure of flux film obtained from an actual continuous casting machine. Using the experimental apparatus shown in Fig. 1 a mold flux having a basicity of 1.1 was melted in a steel crucible heated to 1 450 ˚C. After that a water-cooled copper block was lowered until

Get Price### Analysis of heat transfer and thermal stress in continuous

An integrated analysis model of the heat transfer and thermal stress based on the FDM and FEM has been developed for continuous casting with the mechanical reduction. The thickness reduction and the internal heat source during solidification of the slab are taken into account.

Get Price### Continuous CastingCOMSOL

Continuous Casting. Application ID 382. This example models the casting process of a metal rod from liquid to solid state using the Non-Isothermal Flow multiphysics interface which combines heat transfer and fluid flow. The model describes the fluid and solid flow and heat transport including the phase transfer from melt to solid.

Get Price### Development of Induction Heating Device for Corner of

corner heating device to be set in a continuous casting line facility and development challenges. As shown in the figure reductions in the capital investment and running costs easy maintenance and downsizing are required for a heating device used in a continuous casting line. Given this in order to put a heating device into practical use

Get Price### Physical and mathematical models of steel flow and heat

Apr 10 2000 · The plasma heating number for the model and heat transfer from the steam jet to water. B V. CONCLUSIONS Physical and mathematical models for simulating the heat- ing operation of liquid steel in a continuous casting tundish by plasma have been built and the main conclusions reached in this study are as follows. 1. The physical model

Get Price### A Simple Model to Calculate Dendrite Growth Rate during

Extensive studies on the microstructure of casting steel dur-ing solidiﬁcation have been performed.1–6) continuous casting process was studied and a simple mathematical model to calculate the primary dendrite into account in the heat transfer model.18 19) In the current study the primary dendrite growth is assumed to stop—

Get Price### STUDY OF CENTERLINE MACROSEGREGATION IN STEEL

A two-phase volume averaging model is used to study centerline macrosegregation in steel continuous casting. Only columnar solidification is considered and the morphology of the columnar dendrite trunks is simplified as step-wise cylinders where the growth kinetics is governed by diffusion.

Get Price### Study and Application of Advanced Secondary Control Model

Nov 01 2015 · The heat flux in the mold is expressed as 2= (W / m )A BÏ† Ï„âˆ (2) where Ï„ is the time that the solidified shell is withdrawn 99 Study and Application of Advanced Secondary Control Model for Continuous Casting at Baosteel from the mold and A and B

Get Price### MODELLING OF THE FORMATION OF LONGITUDINAL

Secondly a heat transfer model of continuous casting of steel was developed and was combined with the phase transformation model. Three heat flux conditions (i.e. low medium and high) were obtained from literature data and applied as the thermal boundary condition. Differences in the delta-to-gamma transformation rate were compared for the

Get Price### A Simple Model to Calculate Dendrite Growth Rate during

Extensive studies on the microstructure of casting steel dur-ing solidiﬁcation have been performed.1–6) continuous casting process was studied and a simple mathematical model to calculate the primary dendrite into account in the heat transfer model.18 19) In the current study the primary dendrite growth is assumed to stop—

Get Price### Solidiﬁcation Process in Continuous Casting of Slab

and ﬁnancial resources to obtain technological information during the solidiﬁcation of a continuous casting strand. They have designed several modeling experimental types of equipment (such as a scaled-down continuous caster) to study the continuous casting process in lower solidus temperature alloys instead of steel 9 10 .

Get Price### Mathematical Modeling on the Influence of Casting

In the current study the two-dimensional mold model was applied to investigate the influence of different casting parameters on the initial solidification at the meniscus of the continuous casting mold. The profile of the meniscus and the slag rim and the heat flux on the hot face of the copper plate were compared with different locations of the mold and different casting parameters.

Get Price### CONTINUOUS CASTINGPrimetals Technologies

continuous casters that apply soft reduction prior to solidification of the strand Speed Expert will set the casting speed in such a way that the soft reduction pro-cess is completed right at the end of a movable seg-ment. Most remarkably the system can determine the casting speed necessary to achieve this online during a casting sequence.

Get Price### MOULD HEAT TRANSFER IN THE HIGH SPEED

MOULD HEAT TRANSFER IN THE HIGH SPEED CONTINUOUS CASTING OF STEEL SLABS by HIMANSHU SINGH B.Tech. (Materials and Metallurgical Engineering) Indian Institute of Technology Kanpur India 1996 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE STUDIES

Get Price### In situ steel solidification imaging in continuous casting

Mar 17 2020 · The continuous casting thermal model developed by TECNALIA predicts the temperature distribution the shell thickness and the metallurgical length during the solidification process of a billet in a continuous casting machine. The model solves a transient 2D case.

Get Price### Effect of Cooling Intensity and Position on Solidification

Numerical simulation for extracting heat from casting billet in semi-continuous casting process presents in this study. In addition the primary and secondary cooling effect on the solidification process and mushy zone during semi continuous casting process for copper billet will be studied.

Get Price### Plasma Heatingan overview ScienceDirect Topics

Plasma Heating. Plasma heating performed by the plasma current and the injection of fast atoms and use of high-frequency and ultrahigh-frequency (UHF) power (in the case of a hot plasma also by charged products of the fusion reaction). From Fundamentals of Magnetic Thermonuclear Reactor Design 2018. Download as PDF.

Get Price### Prediction of Cracks in Continuously Cast Steel Beam Blank

be included in the development of a mathematical model. klmnsmn The purpose of this study was to develop a mathematical model for the fully coupled analysis of fluid flow heat r 52 2 3 s ds dT 52 2 3 s1 ds0 dT 1 dEP tan dT «P2 3 transfer and deformation behavior of a solidifying shell in the continuous casting process involving complex

Get Price### STUDY OF CENTERLINE MACROSEGREGATION IN STEEL

A two-phase volume averaging model is used to study centerline macrosegregation in steel continuous casting. Only columnar solidification is considered and the morphology of the columnar dendrite trunks is simplified as step-wise cylinders where the growth kinetics is governed by diffusion.

Get Price### Finite element study of the effect of some local defects

This paper introduces a numerical 2.5D model of continuous casting of steel slabs. This model is based on the finite element method and it has been applied to the study of some local defects in a continuous caster such as partial blockage of nozzles (leading to a local reduction of secondary cooling rate) locking or misalignment of rolls.

Get Price### Physical and mathematical models of steel flow and heat

Apr 10 2000 · The plasma heating number for the model and heat transfer from the steam jet to water. B V. CONCLUSIONS Physical and mathematical models for simulating the heat- ing operation of liquid steel in a continuous casting tundish by plasma have been built and the main conclusions reached in this study are as follows. 1. The physical model

Get Price### Continuous CastingCOMSOL

Continuous Casting Application ID 382 This example models the casting process of a metal rod from liquid to solid state using the Non-Isothermal Flow multiphysics interface which combines heat transfer and fluid flow. The model describes the fluid and solid flow and heat transport including the phase transfer from melt to solid.

Get Price### THERMAL OPTIMIZATION OF THE CONTINUOUS CASTING

The goal of present study is to optimize the heat transfer in the vertical continuous casting process cf. 15 . Figure 1 (left) schematically shows essential features of a vertical continuous casting process. In this production method the molten material is poured into a water cooled mold that is called

Get Price### Continuous Casting R D Trends HeatTreatConsortium

Plasma heating of Tundishes. Arc plasma torches are being evaluated in two Japanese steel mills. At Nippon Steel Hirohata Works a 1 MW Tetronics transferred arc plasma torch was installed on a 28 ton tundish. Temperature control was much better and temperature drop much less.

Get Price### Title Model studies of plasma heating in the continuous

A room temperature water model of a tundish was design constructed and operated. The model was equipped with a steam heating system that simulates that simulates the tundish plasma heating systems operated by some of the more modem continuous casting plants.

Get Price### THERMAL OPTIMIZATION OF THE CONTINUOUS CASTING

The goal of present study is to optimize the heat transfer in the vertical continuous casting process cf. 15 . Figure 1 (left) schematically shows essential features of a vertical continuous casting process. In this production method the molten material is poured into a water cooled mold that is called

Get Price### MOULD HEAT TRANSFER IN THE HIGH SPEED

MOULD HEAT TRANSFER IN THE HIGH SPEED CONTINUOUS CASTING OF STEEL SLABS by HIMANSHU SINGH B.Tech. (Materials and Metallurgical Engineering) Indian Institute of Technology Kanpur India 1996 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE STUDIES

Get Price### A Mathematical Modeling of Heat Transfer in Continuous

A two-dimensional (2-D) heat transfer and solidification model has been established and applied to calculate the temperature distribution and solid shell thickness profile of a continuous casting slab in a steel plant. A finite difference method was used for the numerical simulation. For thermal analysis the 2-D slice unsteady-state heat conduction equation with enthalpy convention was used.

Get Price### Technical Report UDC 621 . 746 . 049 53 . 072

the heat transfer during a continuous casting operation by compar-ing the structure of flux film obtained from an actual continuous casting machine. Using the experimental apparatus shown in Fig. 1 a mold flux having a basicity of 1.1 was melted in a steel crucible heated to 1 450 ˚C. After that a water-cooled copper block was lowered until

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