The control of non-metallic inclusions is an important tool for steel properties optimization. Most related actions of this control involve the prevision of the slag-metal and inclusion-metal equilibrium, aiming at implementation of operational practices to obtain a more adequate inclusion profile.
Computational thermodynamics has proved to be a powerful tool in the prevision of equilibrium in different metallurgical systems, especially in the metal-oxide system in question. The aim of this work is to present the application of computational thermodynamics in the study of formation and control of non-metallic inclusions in steels, mainly during secondary refining. This work shows that the careful application of computational thermodynamics can drastically reduce the empirics in the process development for the control of non-metallic inclusions in steels, contributing to an increase in the efficiency of the process manufacture, to improve the present product quality and to enable the economic development of new products.

news in steel

Rolling mill orders from AEMZ and NPZ

Two new High-productivity, High-quality and High-efficiency H3 rolling mills will be installed and put into operation in Russia during 2020.

SMS group to modernize gas cleaning systems at POSCO Gwangyang

SMS group, in cooperation with AERIX Co., Ltd., South Korea, has been commissioned to modernize the gas cleaning systems of the three BOF (Blast Oxygen Furnace) converters at the integrated steel mill of POSCO in Gwangyang, South Korea.

New opportunities for customers in Central and Eastern Europe

SSAB is providing new processing opportunities for customers to explore, with a laser cutting machine and state-of-the-art press brake featuring a patent pending bending technology. The new machines were presented during a unique event at the SSAB steel service center in Oborniki, Poland.

Aceros Arequipa orders steel mill and continuous billet caster

Corporación Aceros Arequipa S.A. (CAASA), based in Arequipa, Peru, has awarded SMS group an order covering the supply of mechatronic equipment for a new steel mill and a billet caster with six strands for its Pisco site.