Title

RECENT DEVELOPMENTS IN CALCIUM TREATMENT IN STEELMAKING: A SOURCE OF TECHNICAL EFFICIENCY AND COST-SAVINGS

Authorship

Gérardin, Sébastien; Schatz, Marc; Lenoir, Claude; Cainarca, Alvaro Andres Bustos

Gérardin, Sébastien

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Schatz, Marc

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Lenoir, Claude

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Cainarca, Alvaro Andres Bustos

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DOI

10.5151/1982-9345-26603

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Abstract

Developed for more than 30 years, continuously improved, cored wire is nowadays a reliable solution for the improvement of sustainability, safety, health and doing quality and cost saving. Cored wire allows the addition of ferroalloys and treatment of liquid steel, especially concerning the calcium treatment. Amongst all the processes in secondary metallurgy, calcium treatment is certainly the most critical one before casting. Besides the traditional CaSi and CaFe wires, new types of wire have been designed for becoming the new reference in calcium treatment. PapCal (calcium insulated wire) and HDx (high density calcium wire) are a very versatile range of products. Indeed, according to the steelmaking process parameters (steel grade, treatment temperature, ladle size, calcium content targeted in tundish and even injection conditions), their technical specifications may be adapted in order to optimize the calcium treatment as high as possible.

Keywords

Calcium treatment, High density calcium, Cost savings, Total cost of ownership

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