Experimental assessment of the gray cast iron production by inoculant injection
An initial assessment of the gray cast irons production by injecting an inoculant with a conveying gas into a molten iron bath was evaluated at a laboratory scale. A numerical simulation was carried out to determine the hydrodynamic behavior between the inoculant particles injected into the molten i...
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University of Belgrade, Technical Faculty, Bor
2021-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392000035R.pdf |
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| author | Reyes-Castellanos G. Cruz-Ramírez A. Gutiérrez-Pérez Hugo V. Rivera-Salinas J.E. Sánchez-Alvarado R.G. Colin-García E. |
| author_facet | Reyes-Castellanos G. Cruz-Ramírez A. Gutiérrez-Pérez Hugo V. Rivera-Salinas J.E. Sánchez-Alvarado R.G. Colin-García E. |
| author_sort | Reyes-Castellanos G. |
| collection | DOAJ |
| description | An initial assessment of the gray cast irons production by injecting an inoculant with a conveying gas into a molten iron bath was evaluated at a laboratory scale. A numerical simulation was carried out to determine the hydrodynamic behavior between the inoculant particles injected into the molten iron. It was determined that an optimal interaction between the particles with the molten iron occurred at a lance depth of 7 cm and for the particle sizes fine (211 to 297 μm) and medium (421 to 590 μm), and the residence time was of 0.38 and 0.4 s, respectively. The melting time was calculated at 0.0008 and 0.003 s for the particle sizes fine and medium, respectively. After the injection, the FeSi of the inoculant melted quickly, releasing the elements of the inoculant which interacted with the molten iron and formed oxides and sulfides creating nucleating sites during solidification. The injection technique allowed obtaining a type-A graphite distribution for the fine and medium particle sizes. The number of eutectic cells increased when the inoculant particle size decreased despite of the low graphitisers elements and manganese contents used in the gray cast iron manufacturing. |
| format | Article |
| id | doaj-art-d38d3b01864f4ea2b1b1052de964f202 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-d38d3b01864f4ea2b1b1052de964f2022025-02-02T20:09:38ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752021-01-01571415110.2298/JMMB200414035R1450-53392000035RExperimental assessment of the gray cast iron production by inoculant injectionReyes-Castellanos G.0Cruz-Ramírez A.1Gutiérrez-Pérez Hugo V.2Rivera-Salinas J.E.3Sánchez-Alvarado R.G.4Colin-García E.5Departamento de Ingeniería en Metalurgia y Materiales, Instituto Politécnico Nacional - ESIQIE. UPALM, Ciudad de México, MéxicoDepartamento de Ingeniería en Metalurgia y Materiales, Instituto Politécnico Nacional - ESIQIE. UPALM, Ciudad de México, MéxicoDepartamento de Formación Específica, Instituto Politécnico Nacional-UPIIZ, Cerro del Gato, Ejido la Escondida, Ciudad Administrativa, Zacatecas, MéxicoCatedrático CONACyT-Departamento de Procesos de Transformación. Centro de Investigación en Química Aplicada-CIQA, Saltillo, Coahuila, MéxicoDepartamento de Ingeniería en Metalurgia y Materiales, Instituto Politécnico Nacional - ESIQIE. UPALM, Ciudad de México, MéxicoDepartamento de Ingeniería en Metalurgia y Materiales, Instituto Politécnico Nacional - ESIQIE. UPALM, Ciudad de México, MéxicoAn initial assessment of the gray cast irons production by injecting an inoculant with a conveying gas into a molten iron bath was evaluated at a laboratory scale. A numerical simulation was carried out to determine the hydrodynamic behavior between the inoculant particles injected into the molten iron. It was determined that an optimal interaction between the particles with the molten iron occurred at a lance depth of 7 cm and for the particle sizes fine (211 to 297 μm) and medium (421 to 590 μm), and the residence time was of 0.38 and 0.4 s, respectively. The melting time was calculated at 0.0008 and 0.003 s for the particle sizes fine and medium, respectively. After the injection, the FeSi of the inoculant melted quickly, releasing the elements of the inoculant which interacted with the molten iron and formed oxides and sulfides creating nucleating sites during solidification. The injection technique allowed obtaining a type-A graphite distribution for the fine and medium particle sizes. The number of eutectic cells increased when the inoculant particle size decreased despite of the low graphitisers elements and manganese contents used in the gray cast iron manufacturing.http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392000035R.pdfgray ironinjectioninoculanteutectic cellmathematical simulation |
| spellingShingle | Reyes-Castellanos G. Cruz-Ramírez A. Gutiérrez-Pérez Hugo V. Rivera-Salinas J.E. Sánchez-Alvarado R.G. Colin-García E. Experimental assessment of the gray cast iron production by inoculant injection Journal of Mining and Metallurgy. Section B: Metallurgy gray iron injection inoculant eutectic cell mathematical simulation |
| title | Experimental assessment of the gray cast iron production by inoculant injection |
| title_full | Experimental assessment of the gray cast iron production by inoculant injection |
| title_fullStr | Experimental assessment of the gray cast iron production by inoculant injection |
| title_full_unstemmed | Experimental assessment of the gray cast iron production by inoculant injection |
| title_short | Experimental assessment of the gray cast iron production by inoculant injection |
| title_sort | experimental assessment of the gray cast iron production by inoculant injection |
| topic | gray iron injection inoculant eutectic cell mathematical simulation |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392000035R.pdf |
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