- Title
- Fluid flow and mold slag entrainment in the continuous twin-slab casting mould
- Creator
- He, Qinglin; Evans, Geoff; Serje, Ramon; Jaques, Tim
- Relation
- AISTech 2009: The Iron & Steel Technology Conference and Exposition co-located with Asia-Pacific Partnership Technology Showcase 2009. AISTech 2009 Proceedings, Volume II (St. Louis, MO 4-7 May, 2009) p. 573-588
- Relation
- http://www.aist.org/aistech/2009_index.htm
- Publisher
- Association for Iron & Steel Technology / Omnipress
- Resource Type
- conference paper
- Date
- 2009
- Description
- Mould slag can have adverse effects on the steel quality if the fluid flow in the mould is not properly controlled. The fluid flow in the twin-slab casting mould and its effect on mould slag entrainment were studied using a full scale water model. Velocity field in the upper mould was measured by means of laser doppler velocimetry (LDV) under various conditions. The parameters studied were mould width, immersion depth of submerged entry nozzle (SEN), and SEN port clogging. Uneven SEN port clogging was found to have a great effect on the mould fluid flow and thus mould slag entrainment. A new SEN with double tapered ports was designed to overcome SEN port clogging and erosion. Plant trial results showed that a decrease in the buildup rate in the bore of the SEN immediately above and in the ports can be achieved using the new SEN design. This has resulted in an increase in tonnes per SEN and a corresponding decrease in SEN consumption.
- Subject
- fluid flow; mould slag entrainment; continuous twin-slab casting
- Identifier
- http://hdl.handle.net/1959.13/919709
- Identifier
- uon:8959
- Identifier
- ISBN:9781935117025
- Language
- eng
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