Water modeling of mold powder entrapment in slab continuous casting mold
| Autor: | Wanjun Wang, Xinhua Wang, Qiaotong Lu, Rongguang Yang, Jiongming Zhang |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Shearing (physics)
Materials science Mechanical Engineering Metallurgy Nozzle Metals and Alloys Geotechnical Engineering and Engineering Geology medicine.disease_cause Volumetric flow rate Continuous casting Entrapment Mechanics of Materials Mold Materials Chemistry medicine Slab Water model General Materials Science Physical and Theoretical Chemistry Composite material |
| Zdroj: | Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material. 14:399-404 |
| ISSN: | 1005-8850 |
| DOI: | 10.1016/s1005-8850(07)60079-6 |
| Popis: | The optimal parameters were determined by the water modeling of slab casting. It was found that there are mainly three types of mold powder entrapment in slab continuous casting, i.e., the entrapment caused by the shearing flow near the narrow face of mold, the entrapment caused by vortexes around the submerged entry nozzle (SEN), and the entrapment caused by the Ar bubbling. Both the velocity of the surface flow and the level fluctuation of the liquids are enlarged with increasing the casting speed, reducing the submersion depth of SEN, decreasing the downward angles of the nozzle outlets, and increasing the Ar flowrate, all of which increase the tendency of mold powder entrapment. Among the four above-mentioned factors, casting speed has the largest effect. |
| Databáze: | OpenAIRE |
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