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The VESUVIUS Sub-Entry Nozzle (SEN) is a one-piece ceramic tube. The ceramic tube can be manufactured from either extruded clay graphite (VAPEX™) or isostatically pressed alumina graphite (VISO™). Each process is custom designed to meet customer requirements.
The SEN prevents re-oxidation by shrouding the steel stream and is custom designed to distribute steel in a controlled manner. When combined with the Tundish Stopper it will give consistent steel pouring control for all steel compositions and casting conditions. The VESUVIUS extruded or isostatically pressed SEN is designed to last for the casting period required by the customer.
For superior long life performance VESUVIUS offers a selection of features:
- Erosion resistance
- Seat (inlet) area offering reliable flow control in conjunction with a stopper
- Slag line materials offering mechanical and chemical resistance
- Anti-Clogging
- Bore lining materials prevent alumina build up stopping casting
- Argon injection with a permeable liner
- Specific anti-clogging bore geometry designed to ensure consistent flow throughout the cast
- Slag line sleeve materials designed to prevent Longitudinal Face Cracking
VESUVIUS can now offer a new generation of SEN designed using principles learned from our technological leadership in Thin Slab Casting.
The VESUVIUS Subentry Shroud (SES) is designed to perform the functions of the Subentry nozzle from the tundish to the mould. The shroud is connected to the Tundish Nozzle or the bottom plate of a Tundish Slide Gate to form an effective seal and to protect the steel stream.
The full range of VESUVIUS materials used in the Subentry Nozzle are available for use in the Subentry Shroud to allow their use for any steel grades and casting conditions.
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