Magnitogorsk State Technical University (Magnitogorsk, Russia):

I. Yachikov

K. Vdovin, e-mail: kn.vdovin@gmail.com

K. Danilyuk

N. Feoktistov

The mathematical models for the introduction of a one -dimensional refractory spherical particles in the liquid metal and its thermal state are proposed. The simulation of the heating of silicon carbide particles at their introduction into the steel melt at different fineness of the powder has been conducted. Using computer modeling the dependences of the maximum depth of penetration of the powder of silicon carbide in the melt and the kinetics of its heating from the particles diameter have been found. The computer program “Hydrodynamics and HMTE of introducing solid particles into the melt” in the Mathcad 14 environment, allowing to conduct computer simulation of introducing of the refractory particles in the melt and their thermal state with regard to freezing and melting of a solid crust on their surface, have been created.It is seen that the diameter of the particles and their initial velocity have significant affect on the hydrodynamic and thermal characteristics. Thus, the mathematical model and the computer program, which allows to determine the important parameters of the process of introduction and dispersion of dispersed and fine- dispersed refractory powders in the molten metal melt for engineering practice have been developed.

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