Rudenko R. Perfection of construction and theoretical substantia tion of the intermediate ladle's pa-rameters of the continuo us casting machine.

The intermediate ladle of the continuous casting machi ne. Perfection of the intermediate ladle's construction of the continuous casting machine and substantiation of the rational design parameters of its gas lift chamber and the three-pla ted slid gate. Methods of physical and mathematical modelling, methods of experimental design and regressive analysis, compu ter techniques. Analytical dependences of mass flow rate of steel melt, which is being transported, and volume rate of transporting gas (argon) for the optimal work mode of gas lift chamber from its geometrical parameters were obtained for the first time. Procedure of definition of optimal geometrical pa rameters of the intermediate ladle's gas lift chamber aimed at minimizing volume rate of transporting gas ( argon) under given mass flow rate of steel melt was formulised. For the first ti me was obtained the analytical dependence of mechanical stres ses, which arise in materials of refractory plates of the three-plated slid gate, from the pre ssing force of the plates, their geometrical sizes and physical and mechanical properties of refractory plates' material, which allows to calculate the legitimate value of plates' pressing force when the stresses arising in them are the best ones to fulfil requirements of strength. The construction of the intermediate ladle of the continuous casting machine equipped with gas lift chambers was worked out and made. It is used in the department of continuo us casting in the oxygen- converter plant of the open-type joint- stock company of the integrated iron- and- steel works "Azovstal"(city of Mariupol). The three- plated slid gate with a balancing spring system of pressing refractory plates to be used in the intermediate ladle of the continuous casting machi ne was worked out, designed and made. The construction of the electromechanical drive of the slid gate where the drive impul se exercises straight- line reciprocate due to Cardan's circles was worked out. The detail design of the three- plated slid ga te with the electromechanical drive was made and submitted to the open-type joint- stock company "Novokramatorsk engineering plant" to perform the contractor design. " Design procedure of the gate's elements constructive parameters was worked out and submitted to the open-type joint- stock company "Novokrama torsk engineering plant" to obtain the well- grounded determi nation and operating characteristics of the gate and its drive. Software which realizes " Methods guides in analysis of compu ter aided processes " was worked out and introduced in Donetsk scientific research Institute of ferrous metallurgy, scientific research and design Institutes and in the educational processes of some Institutes.