Development of Swirling-flow Submerged Entry Nozzles for Slab Casting
2010 (English)In: ISIJ International, ISSN 0915-1559, Vol. 50, no 5, 721-729 p.Article in journal (Refereed) Published
We began development of swirling-flow submerged entry nozzles in 1997 as a fundamental and effective measure for controlling the flow pattern in continuous casting molds. As a first step, we developed a swirling-flow submerged entry nozzle for round billet casting at the Wakayama works. We then began developing swirling-flow submerged entry nozzles for slab casting. The main purpose of the present work was to demonstrate that the formation of swirling flow in submerged entry nozzle improves productivity and the quality of products in continuous casting. We examined swirling-flow submerged entry nozzles with a swirl blade in these main bodies because such an arrangement is the easiest way to apply swirling flow to submerged entry nozzles in continuous casters without investment by facilities. We had only to change the submerged entry nozzle in the experiment. Swirling-flow submerged entry nozzles for slab casting were developed and their operation examined at the Wakayama and Kashima works. It was found that the proposed submerged entry nozzles increased the casting speed and improved the surface quality of slabs and steel sheets.
Place, publisher, year, edition, pages
2010. Vol. 50, no 5, 721-729 p.
continuous casting, submerged entry nozzle, swirling flow, surface quality, casting speed
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-27583DOI: 10.2355/isijinternational.50.721ISI: 000277996600012ScopusID: 2-s2.0-77954792646OAI: oai:DiVA.org:kth-27583DiVA: diva2:377519
QC 201012142010-12-142010-12-132010-12-14Bibliographically approved