Influence of submerged entry nozzle on intermixed zone in
3 P. Rasmussen Mixed grade casting with turbostop impact pads at Dofasco. In Steelmaking Conference Proceedings (1996). 4 X. Huang B.G. Thomas Intermixing model of continuous casting during a grade transition. Metallurgical and Materials Transactions B
Chat Online
Steel Making Continuous casting ISlideShare
Mar 16 2016 · During sequence casting and ladle change- over periods tundish supplies molten steel to the molds. Distributor Tundish distributes molten steel to different molds of the continuous casting machine at constant flow rant and superheat which is required for stand similarly with reference to solidification microstructure.
Chat Online
MODEL STUDY OF TUNDISH STEEL INTERMIXING AND
the tundish and in the continuous cast billet it creates so called the intermixed zone. The physical and numer-ical modelling of two different melts intermixing in the tundish have been successfully used for the improvement of control systems in terms of intermixed zones under conditions of a continuous casting machine (CCM) No.2
Chat Online
Intermixing model of continuous casting during a grade
To investigate the composition distribution that develops in continuously cast steel during a grade change an efficient accurate and user-friendly computational model has been developed.
Chat Online
Simple Tundish Mixing Model of Continuous Casting during a
Cho and Kim proposed a novel mixing model for quantifying the composition distribution in solidified steel during a grade mixing. In subsequent work it was reported that the model was capable of
Chat Online
MODELING STUDY OF INTERMIXING IN TUNDISH AND
The intermixing of dissimilar grades during the continuous casting of steel is a problem of growing concern as the demand for longer casting sequences increases at the same time as the range of products widens. Steel producers need to optimize casting conditions and grade sequences to minimize the amount of steel downgraded or scrapped.
Chat Online
SOME STUDIES IN DIFFERENT SHAPES OF TUNDISHINTERMIXING
Simple Tundish Mixing Model of Continuous Casting during a Grade Transition This work applies the model to investigate the effect of process variables on the extent of intermixing during a
Chat Online
New Developments for Process Modelling of the
Continuous casting has proven to be a universal production method for steel billets of different sizes and steel grades. Nevertheless continuous casting is a very sensitive process that requires deep knowledge of the amount of heat to be removed during solidification. In
Chat OnlineIntermixing Model of Continuous Casting During a Grade
The model is capable of tracking mixing phenomena for arbitrary tundish filling and casting speed histories. It has been used to compare the effects of different grade change procedures on the amount of intermixed steel including standard sequence casting flying tundish change and insertion of grade
Chat Online
NUMERICAL MODEL FOR THE MINIMIZATION OF
Transition grade models 1-6 have been published in the literature since 1992. Numerical models physical water models and experimental studies were employed to address the problem. Most publications have considered grade transitions with only two continuous casting lines casters with more than two lines being rare in literature 7 .
Chat Online
Computational study of a trailblazer multi reactor
Aug 05 2014 · Finally it will help to discharge a high value quality steel from the tundish. This is schematically shown in figure 7. Fig7. Schematic diagram of future work REFERENCES 1 Myung Jong Cho and In Cheol Kim Simple Tundish Mixing Model of Continuous Casting during a Grade Transition ISIJ International Vol. 46 (2006) No. 10 pp. 1416–1420
Chat Online
Study on Molten Steel Mutual Mixing Law of Intermixing
Through chemical composition analysis of different grades casting intermixing slab with 0.40 carbon difference a general law of molten steel mutual mixing has been drawn out. It reveals that different grades casting has a little effect on the tail-slab of former heat but has a
Chat Online
Macro segregation in continuous cast HSLA steels
Macro segregation is a phenomenon in alloyed metals that emerges during solidification causing variations in composition depending on where in 3D -space the slab is observed. The hypothesis is that the gradient in composition will negatively affect mechanical properties. On the continuous casting
Chat Online
Mould Fluxes in the Steel Continuous Casting Process
The continuous casting process is a very complex one which involves many variables cast‐ ing speed mould oscillation characteristics steel grade mould dimensions and metal flow. All these variables need to be optimized but this is very difficult because it is not
Chat Online
A Practical Model for Predicting Intermixed Zone During
This article proposes a new mixing model for predicting the composition distribution in continuously cast steel during a grade transition. The transient model consists of two sub-models one for mixing in the tundish and the other for mixing in the liquid pool of the strand.
Chat OnlineA COUPLED HEAT TRANSFER MODEL FOR SIMULATION OF
Key words Continuous casting heat transfer enthalpy formulation finite difference method. Abstract. In the present paper a 3-dimensional dynamic heat transfer model for continuous casting of steel is presented. The model can be used on-line. Industrial examples are also shown. The model is applied to the bloom caster of Imatra Steel Finland.
Chat Online
Casting Conditionan overview ScienceDirect Topics
Large composition differences can arise through the thickness and along the length of the final product due to intermixing after a change in steel grade during continuous casting. Steel producers need to optimize casting conditions and grade sequences to minimize the amount of steel downgraded or scrapped due to this intermixing.
Chat Online
Steel Making Continuous casting ISlideShare
Mar 16 2016 · During sequence casting and ladle change- over periods tundish supplies molten steel to the molds. Distributor Tundish distributes molten steel to different molds of the continuous casting machine at constant flow rant and superheat which is required for stand similarly with reference to solidification microstructure.
Chat Online
MODELING AND SIMULATION OF QUALITY
Quality prediction model ofinternal cracks in continuous casting billet is established by quality prediction function based on clustering analysis model of onsite data FTA model and solidification heat- -transfer model. Some samples of Steel Grade 1008 are selected for testing the quality prediction model.
Chat Online
DirectorContinuous Casting ConsortiumU of I
Best original paper on iron and steel appearing in ISS publications between July 1 1996 and June 30 1997 "Intermixing Model of Continuous Casting During a Grade Transition". (jointly with X. Huang). Extraction and Processing Technology Award 1998 TMS.
Chat Online
Modeling of tundish steelmaking process in continuous casting
The course focuses on understanding the tundish operations during continuous casting steelmaking process. Tundish is the last metallurgical vessel through which molten metal flows before solidifying in the continuous casting mold. During the transfer of metal through the tundish molten steel interacts with refractories slag and atmosphere.
Chat Online
A study of breakout of a continuously cast steel slab due
2 Interruption of continuous casting The following case was recorded during the process of continuous casting of 250 1530 mm steel slabs of the grade A with the 0.41 wt. carbon content and 9.95 wt. chromium content (melts 1 to 3) and grade B steel with the 0.17 wt. carbon content and 0.70 wt. chromium content (melt 4).
Chat Online
COMPUTATIONAL STUDY OF A TRAILBLAZER MULTI
Increasing the production efficiency of the continuous casting process requires casting longer sequences of ladles without stopping and restarting the caster. As the demand for wider ranges of steel products increases at the same time the intermixing of dissimilar grades is becoming a problem of growing concern.
Chat Online
Steel Making Continuous casting ISlideShare
Mar 16 2016 · During sequence casting and ladle change- over periods tundish supplies molten steel to the molds. Distributor Tundish distributes molten steel to different molds of the continuous casting machine at constant flow rant and superheat which is required for stand similarly with reference to solidification microstructure.
Chat Online
Intermixing model of continuous casting during a grade
Aug 01 1996 · To investigate the composition distribution that develops in continuously cast steel during a grade change an efficient accurate and user-friendly computational model has been developed. The model is fully transient and consists of three submodels which account for mixing in the tundish mixing in the liquid core of the strand and solidification. The first submodel of mixing in the
Chat Online
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.
Chat OnlineAnalysis of Different Continuous Casting Practices Through
key role during Continuous Casting (CC) of steel. Generation of defects and production issues are a result of the interaction between mould flux steel grade and casting conditions. These issues are detrimental to both productivity and quality. Thus the development of reliable
Chat OnlineSimple Tundish Mixing Model of Continuous Casting during a
Cho and Kim proposed a novel mixing model for quantifying the composition distribution in solidified steel during a grade mixing. In subsequent work it was reported that the model was capable of
Chat OnlineIntermixing Model of Continuous Casting During a Grade
CiteSeerXDocument Details (Isaac Councill Lee Giles Pradeep Teregowda) To investigate the composition distribution that develops in continuously-cast steel during a grade change an efficient accurate and user-friendly computational model has been developed. The model is fully transient and consists of three submodels which account for mixing in the tundish mixing in the liquid core
Chat Online
Modeling of Steel Grade Transition in Continuous Slab
Mathematical models have been developed and applied to investigate the composition distributions that arise during steel grade changes in the continuous slab casting processes. Three-dimensional turbulent flow and transient mixing phenomena in the mold and the strand were calculated under conditions corresponding to a sudden change in grade.
Chat Online
