Řízené tváření nízkouhlíkové nelegované oceli v podmínkách kontijemné trati TŽ, a.s.

Abstract

Requirements on quality of produced steels have been growing. It makes metallurgical corporations reconstructing existing arrangements and innovating technologies of production. Controlled shaping is one of these technologies. This thesis deals with controlled rolling low-carbonic unalloyed steels CB4FF in conditions of KJT TŽ, a. s., considering achievement of fine-grained textures and reduction of oxide scales layer as much as possible. Simultaneously achievement of required mechanical properties is needed. Objective of this thesis was determined optimal from seven rolling technologies on the grounds of mechanical and metallographical tests.