| Journal: | Tecnologia em metalurgia, materiais e mineracao |
| Database: | PERIÓDICA |
| System number: | 000344740 |
| ISSN: | 2176-1515 |
| Authors: | Seshadri, Varadarajan1 Silva, Carlos Antonio da2 Silva, Itavahn Alves da2 Araujo-Junior, Ely da Silva |
| Institutions: | 1Universidade Federal de Minas Gerais, Departamento de Engenharia Metalurgica e de Materiais, Belo Horizonte, Minas Gerais. Brasil 2Universidade Federal de Ouro Preto, Escola de Minas, Ouro Preto, Minas Gerais. Brasil |
| Year: | 2012 |
| Season: | Ene-Mar |
| Volumen: | 9 |
| Number: | 1 |
| Pages: | 22-29 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| English abstract | The control and minimization of non-metallic inclusions content in the tundish and in the mold of a continuous casting unit is crucial for ensuring the final quality of the steel cast product. Nonmetallic inclusions of sizes smaller than 15 μm are hard to remove, as they are difficult to float. They are easily carried by the flow of steel melt into the mold and adversely affect the steel cleanliness. It is suggested that a gas curtain made of small bubbles of argon can be used to capture and remove these inclusions in the tundish, thus avoiding their transport into the mold. A 1:3 scale physical model of tundish of the continuous casting unit of ArcelorMittal plant, in Vitória, Brazil, was built to investigate the effects of gas flow, shape and positioning of the gas curtain inside the tundish, on the efficiency of removal of inclusions. The results suggest that the gas bubbling inside the tundish can be effective in inclusion removal. The efficiency is dependent upon the location of argon bubbling |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería metalúrgica, Moldes de fundición, Acero, Remoción de inclusiones, Artesa, Gases inertes, Modelado |
| Keyword: | Engineering, Metallurgical engineering, Casting molds, Steel, Tundish, Inclusion removal, Inert gases, Modelling |
| Full text: | Texto completo (Ver PDF) |
