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Vol 11, Issue 1, 2016
Pages: 135 - 140
Professional paper
Metallic materials
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Published: 21.04.2016. Professional paper Metallic materials

IMPROVEMENT OF SECONDARY METALLURGY TREATMENT DURING PRODUCTION OF STEEL FOR THE FORGINGS IN STEELWORK ZENICA

By
Omer Kablar ,
Omer Kablar
Contact Omer Kablar

ArcelorMittal , Zenica , Bosnia and Herzegovina

Aida Mahmutović ,
Aida Mahmutović

Faculty of engineering and natural sciences, University of Zenica , Zenica , Bosnia and Herzegovina

Menzur Plaćo ,
Menzur Plaćo

ArcelorMittal , Zenica , Bosnia and Herzegovina

Šaban Žuna
Šaban Žuna

Faculty of engineering and natural sciences, University of Zenica , Zenica , Bosnia and Herzegovina

Abstract

The practical objective of this paper was based on improving the cleanliness of forging ingots, improving 
the ingots yield by the reduction of ingot head, taking the example carbon steels produced in Steelwork 
Zenica 
In that sense, the modification of existing technologies has been done in the segment of secondary 
metallurgy during production of liquid steel. The paper describes in detail the measures taken to improve 
the existing technology of liquid steel production in the secondary metallurgy processes, which are 
primarily related to the prevention of spillage BOF oxide slag in the ladle during tapping, adopting 
different operation practice at the LF device, VD vacuum device, as well as changes in the way of 
addittion a casting powder and use of high egsotermic covering powders at the end of casting, etc. 
With introduced measures of secondary metallurgy treatments has been improved in existing working 
conditions, and improvement is done regarding cleanliness of carbon steels grade C45E and also rejects 
caused by steelmaking has been reduced.

References

1.
Ghosh A. 2000;
2.
Kablar O. Poboljšanje tretmana sekundarne metalurgije u proizvodnji konstrukcionih čelika u Arcelormittal Zenica. 2014;
3.
Mahmutović A, Kablar O, Žuna Š, Adilović A, Arnaut N, Balihodžić N. Poboljšanje stepena čistoće otkovaka tretmanima sekundarne metalurgije u željezari zenica" IX Naučnostručni simpozij sa međunarodnim učešćem "METALNI I NEMETALNI MATERIJALI: proizvodnja-osobineprimjena. :23–4.
4.
2006;
5.
Bašić E. Poboljšanje tretmana sekundarne metalurgije u proizvodnji ugljeničnih čelika u željezari Zenica. 2014;

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