Topic of doctoral theses

Theory development of work roll degradation during hot rolling process and influence on final product

Supervisor: doc. Ing. Michal Pohanka, Ph.D.
Specialist: doc. Ing. Petr Kotrbáček, Ph.D.
Description:
Steel is processed in high volumes at high temperatures. These include hot thick and thin sheets metal rolling, as well as production of various profiles such as rails, rods, pipes, H, L, U and I profiles. Processing usually takes place at temperatures above 900 ° C, where steel is rapidly oxidized and an unwanted scale layer is formed on the surface. The partially oxidized and hot steel surface comes into contact with the work roll and the work roll is rapidly cooled or different emulsions are used to prolong the work roll lifetime. During the rolling process, the mechanical and thermal stresses of the work roll are complicated and the surface of the cylinders rapidly degrades. The doctoral work will focus on the detailed study of the basic principles that occur during hot rolling and propose procedures that would allow to prolong lifetime of the work roll and improve the resulting quality of the rolled material.
Year Programme Branch Specialisation Mode Language Status
2019/20 D4A-P D-IME F cs Approved by branch committee