ISSN 2594-5300
44º Seminário de Aciaria — vol. 44, num.44 (2013)
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In order to supply new steel grades to the local Argentine market which are currently imported, Ternium-Siderar decided to enhance their treatment of secondary metallurgy with a vacuum degasser of RH-TOP type design. The start-up is expected in late 2013. With the operation of RH, steel grades such as deep drawing steels, IF (interstitial free) grades and degassed steels will be added to the Ternium Siderar production programme. A major challenge during the bidding stage for this new facility was was the selection of equipment that would provide flexibility and operational reliability and, at the same time, reduces costs by using the existing building in an optimal manner. Moreover, a further request was made to consider a future upgrading of the facility for operation with higher throughput by feeding two continuous casting machines by just adding a second ladle car. During the equipment design and layout, an interesting new solution of development called Ladle Rocker system emerged. This solution facilitates a quick change of the ladle car for liquid steel during vacuum treatment, with greater safety margins to avoid a risk of damaging the equipment in case of ladle refractory failure. This paper aims to present the considerations taken during the study, alternative solutions and the reasons for the final adoption of the mentioned system.
In order to supply new steel grades to the local Argentine market which are currently imported, Ternium-Siderar decided to enhance their treatment of secondary metallurgy with a vacuum degasser of RH-TOP type design. The start-up is expected in late 2013. With the operation of RH, steel grades such as deep drawing steels, IF (interstitial free) grades and degassed steels will be added to the Ternium Siderar production programme. A major challenge during the bidding stage for this new facility was was the selection of equipment that would provide flexibility and operational reliability and, at the same time, reduces costs by using the existing building in an optimal manner. Moreover, a further request was made to consider a future upgrading of the facility for operation with higher throughput by feeding two continuous casting machines by just adding a second ladle car. During the equipment design and layout, an interesting new solution of development called Ladle Rocker system emerged. This solution facilitates a quick change of the ladle car for liquid steel during vacuum treatment, with greater safety margins to avoid a risk of damaging the equipment in case of ladle refractory failure. This paper aims to present the considerations taken during the study, alternative solutions and the reasons for the final adoption of the mentioned system.
Palavras-chave
Secondary metallurgy; Ladle rocker; Vacuum degassing; RH.
Secondary metallurgy; Ladle rocker; Vacuum degassing; RH.
Como citar
López, Raúl Daniel;
Aguirre, Mariano.
LADLE ROCKER FOR THE NEW RH AT TERNIUM SIDERAR
,
p. 55-66.
In: 44º Seminário de Aciaria,
São Paulo,
2013.
ISSN: 2594-5300
, DOI 10.5151/2594-5300-22743
