Demidova Irina

                Speciality "Processing of metals by pressure"

Masters work     

               The Association of continuous moulding and rollings in continuous     technological process is one from main problems of increase of efficiency  metallurgical production. The solutions of this problem are ensured decrease of the costs of metal, with increase of productivity MCMB, elemination of the additional costs on cutting, warehousing, heat and   transportation of bars before rolling,   a possibility of deriving with bar of continuous mouldingof one cut of bars of a number of standard sizes etc. However on majority of factories are present stans of an old type, which reconstruction in near future is not provided, development on integration MCMB with old sort therefore is conducted. Therefore, having analyzed existing   of a connecting circuit MCMB with the rolling mill, the optimum solution of this problem - assimilation of direct rolling was found as rolling at the Austrian factory Marienhiite, such circuit of integration is planned to mount on OJS "DMPZ".

            Despite of the collected experience of use  bar of continuous moulding for production of various kinds ofsort  hire on modern continuous stans, it the application on sort stans of a linear type requires further comprehensive study. Point of view;!from the point of view of features of calibration draft-quality groups mins the necessity of realization of such researches is stipulated, first of all, application of conjugate calibres. The analysis of being available literary datas has shown, that in majority they were obtained with reference to conditions modern stans, namely continuous. The datas concerning studies of process of deformation  bar of continuous moulding in conjugate calibres, in the literature are not detected. Besides the urgency of the given problem is determined also by that circumstance, that only in Donbass per the nearest years as a minimum 7 linear sort stans plan transition for use bar of continuous moulding.

            The purpose of the present work is the research of features  process by deformation  bar of continuous moulding in conjugate calibres with use  physical models.