C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
C21C 5/46 (2006.01) B22D 2/00 (2006.01) B22D 41/46 (2006.01)
Patent
CA 2334963
The aim of the invention is to provide a method for sealing a tap hole (2) in metallurgical containers and a tapping system for carrying out slag-free tapping. To this end, the bott for closing the tap hole comprises a bott sleeve (7) which receives a heat-resistant flowable material (8). The time at which the bott sleeve is inserted is controlled automatically. After the bott sleeve has been introduced, the tap hole is closed from the outside of the container. The material from which the bott sleeve is made changes in its consistency and/or form under the influence of temperature, in such a way that the flowable material spreads in the tap hole, hereby sealing it.
L'invention concerne un procédé pour rendre étanche une ouverture de coulée (2) dans des récipients métallurgiques et pour créer un système de coulée permettant d'effectuer une coulée sans scories. Le bouchon destiné à fermer l'ouverture de coulée doit comporter une enveloppe (7) contenant une substance (8) coulante thermorésistante. Le moment d'introduction est commandé automatiquement et après la mise en place, l'ouverture de coulée est fermée depuis le côté extérieur du récipient, et le matériau de l'enveloppe de bouchon change de consistance et/ou de forme sous l'effet de la température de sorte que la substance coulante présente dans l'ouverture de coulée se répand pour créer l'étanchéité.
Pleschiutschnigg Fritz-Peter
Wu Wei-Ping
Borden Ladner Gervais Llp
Sms Schloemann-Siemag Aktiengesellschaft
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