For the purpose to facilitate development of high-speed Spindle Units (SUs) running on rolling bearings, we have developed a beam element model, algorithms, and software for computer analysis of thermal characteristics of SUs. The thermal model incorporates a model of heat generation in rolling bearings, a model of heat transfer from bearings, and models for estimation of temperature and temper...

AC regenerative electric drives (AC REDs) are widely used in metallurgical rolling due to their reliability, efficiency, and power sufficient maintain the process. This paper reviews latest achievements building grid connection circuits for main REDs of mills. The discusses multipulse formed by various transformer types algorithms preprogrammed pulse-width modulation with selective harmonic eli...

A steel hot rolling mill subjects steel slabs to high temperatures and pressures in order to form steel coils. We describe the scheduling problem for a steel hot rolling mill. We detail the operation of a commercial decision support system which provides semi-automatic schedules, comparing its operation with existing, manual planning procedures. This commercial system is currently in use in sev...

A.B. Naizabekov, S.N. Lezhnev, Rudny Industrial Institute, Rudny, Kazakhstan; H. Dyja, T. Bajor, Czestochowa University of Technology, Czestochowa, Poland; K. Tsay, Institute of Nuclear Physics of the National Nuclear Center of the Republic of Kazakhstan, Almaty, Kazakhstan; A. Arbuz, N.Gusseynov, R. Nemkaeva Al-Farabi Kazakh National University, Almaty, Kazakhstan The cross rolling is the one ...