Q. Yue, C. B. Zhang: School of Metallurgy Engineering, Anhui University of Technology, Ma’ anshan, China. X. Z. WANG: School of Mechanic Engineering, Anhui University of Technology, Ma’ anshan, China Fluid flows in a two-strand tundish for slab continuous casting were performed with mathematical simulation methods. The molten steel flow velocity fields in the tundish with a turbulence inhibitor...

The mathematical modelling of the fluid flow and heat transfer behaviour of the steel melt in the tundish is carried out for a single strand tundish. The flow dynamics and heat transfer in the tundish is analysed by presenting the velocity field, Residence time distribution (RTD) curves and the temperature profiles by changing the geometrical parameters such as the width, the bath height, their...

A 1-D, transient mathematical model (MIX1D) has been developed to simulate the final composition distributions produced within continuous-cast slabs and blooms during an arbitrary grade transition. This work applies the model to investigate the effect of process variables on the extent of intermixing during a typical ladle change operation, where mixing occurs in both the tundish and the liquid...

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 tundish...

Melt flow in continuous casting tundishes is normal[y characterized by a combined model. The model is used to analyze the residence time disttibution of fluid in a tundish, In this model, the fluid volume in tundish is considered to be consisting of the plug flow, well-mixed flow, and dead volumes. Although this model was proposed over 20 years ago, most researchers have either used it incorrec...

Constantly increasing customers demands for the production of high and very high-quality steels, promote the intensive technological development of their production. Since the dominating method of global steel production is continuous casting, the tundish has become very important metallurgical unit. Nowadays, tundish is not only a storage vessel which guaranty the continuous casting of steel, ...

The method of continuous casting of steel is now often used in the metallurgical industry, due to the increasing demand for the production of high – quality steel. An important device of continuous casting machine is the tundish, in which a stabilized steel flow has a crucial effect on the quality and efficiency conditions of the continuous casting process. In this study fluid flows in a six – ...

M. Warzecha: Department of Metals Extraction and Recirculation, Czestochowa University of Technology, Czestochowa, Poland T. Merder: Silesian University of Technology, Department of Metallurgy, Katowice, Poland The tundish pla ys an impor tant role in the challeng ing task of a “clean steel” production process. The fl ow of the liquid steel in tundish has a crucial infl uence on non-metallic in...

Nozzle clogging is a serious productivity and quality problem in continuous casting. This work reviews the causes, effects, and solutions to clogging in continuous casting nozzles. The results of a one-dimensional, steady state analysis of the heat loss from the molten steel stream through the nozzle wall are discussed. The analyses show that steel may freeze within the clog matrix for a relati...

Continuous casting is the central process phase with strong influence on the final quality of the steel products. Several different models for continuous casting have been developed at the Laboratory of Metallurgy at Helsinki University of Technology (TKK) concerning e.g. fluid flow, heat transfer, thermodynamic equilibria and statistical approaches. In this paper the inhouse solidification mod...