Title

DANIELI NEW TECHNOLOGIES IN THICK SLAB CASTING AND REFERENCE PLANTS- ARCELOR MITTAL (DUNKERQUE, FRANCE) AND BAOSTEEL NR. 4 (SHANGHAI, P.R CHINA) NEW CASTERS

DANIELI NEW TECHNOLOGIES IN THICK SLAB CASTING AND REFERENCE PLANTS- ARCELOR MITTAL (DUNKERQUE, FRANCE) AND BAOSTEEL NR. 4 (SHANGHAI, P.R CHINA) NEW CASTERS

Authorship

Piemonte, Carlo P.

Piemonte, Carlo P.

I am this author

DOI

10.5151/2594-5300-0027

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Abstract

In recent years, the production of high quality steel at reduced transformation cost has become an issue of utmost importance for flat products steel producers, considering the booming of the market demand and the emerging of new competitors on the international market. In order to meet with increasing quality demands, world leading producers recently entered into major industrial projects involving either the installation new generation slab casters and the complete rebuilt of existing facilities in order to take advantage of the cutting edge technologies available. The strategies behind these huge investments are: Improvement of slab quality leading to virtually “defect free slabs” in order to allow 100 % hot charge in Hot strip mills, when allowed by metallurgy; Increase caster available time for production, thanks to fully automatic operations, advanced diagnostics, and maintenance free solutions; Improve caster overall yield, reducing off line grinding/scarfing operations and product downgrade. Danieli Davy Distington, the Danieli department in charge of the design and supply of slab casters, developed in close cooperation with his customers innovative equipment such as the patented INMO mould and OPTIMUM segments and perfected the application of advanced casting practices such as dynamic soft reduction, strongly contributing to the enhancement of the casing technology. These cutting edge solutions gave the possibility to Danieli to be selected in recent years as the supplier of some of the most technologically advanced slab casting plants in the world by, among others Posco, ThyssenKruppStahl, Baosteel and Arcelor Mittal. This paper describes these innovative tools and their application in most recent reference plants just simultaneously commissioned by Danieli during the month of December 2006 in Baosteel (P.R China) and Arcelor Mittal Dunkerque ( France).

In recent years, the production of high quality steel at reduced transformation cost has become an issue of utmost importance for flat products steel producers, considering the booming of the market demand and the emerging of new competitors on the international market. In order to meet with increasing quality demands, world leading producers recently entered into major industrial projects involving either the installation new generation slab casters and the complete rebuilt of existing facilities in order to take advantage of the cutting edge technologies available. The strategies behind these huge investments are: Improvement of slab quality leading to virtually “defect free slabs” in order to allow 100 % hot charge in Hot strip mills, when allowed by metallurgy; Increase caster available time for production, thanks to fully automatic operations, advanced diagnostics, and maintenance free solutions; Improve caster overall yield, reducing off line grinding/scarfing operations and product downgrade. Danieli Davy Distington, the Danieli department in charge of the design and supply of slab casters, developed in close cooperation with his customers innovative equipment such as the patented INMO mould and OPTIMUM segments and perfected the application of advanced casting practices such as dynamic soft reduction, strongly contributing to the enhancement of the casing technology. These cutting edge solutions gave the possibility to Danieli to be selected in recent years as the supplier of some of the most technologically advanced slab casting plants in the world by, among others Posco, ThyssenKruppStahl, Baosteel and Arcelor Mittal. This paper describes these innovative tools and their application in most recent reference plants just simultaneously commissioned by Danieli during the month of December 2006 in Baosteel (P.R China) and Arcelor Mittal Dunkerque ( France).

Keywords

Slab; Caster; Quality; Productivity

Slab; Caster; Quality; Productivity