Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes
The high content of aluminum in the steel reacts with the CaO-Si2O-based mold fluxes, resulting in deterioration of the mold slag physical and chemical properties, which cannot be applied to the continuous casting molten slag casting process of high-Mn high-Al steel Herein, the thermodynamic and str...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2020/8844392 |
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| author | Lifeng Chen Kun Liu Peng Han Bin Yang Lianghua Feng |
| author_facet | Lifeng Chen Kun Liu Peng Han Bin Yang Lianghua Feng |
| author_sort | Lifeng Chen |
| collection | DOAJ |
| description | The high content of aluminum in the steel reacts with the CaO-Si2O-based mold fluxes, resulting in deterioration of the mold slag physical and chemical properties, which cannot be applied to the continuous casting molten slag casting process of high-Mn high-Al steel Herein, the thermodynamic and structural properties of low-reactivity CaO-Al2O3-based mold fluxes were investigated. The thermodynamic properties were studied based on the first principles of quantum mechanics. The results show that the formation of stable structures of B-O and O-B-O in the mold fluxes was beneficial to reduce the probability of structural interconnection, degree of polymerization, and viscosity of the molten slag. The increase in the ratio of CaO/Al2O3 = 0.88–2 led to an increase in the O2− concentration. O2− entered the [AlO4] structure to form a stable structure of [AlO6] and [AlO5], wherein [AlO6] was more stable than [AlO5], reducing the degree of polymerization of the network structure. When cosolvent content B2O3 = 2%–10%, a simple layered structure of [BO3] was formed, and the particle migration resistance, break temperature, and viscous activation energy of the mold fluxes were reduced, while the corrected optical basicity of mold fluxes was gradually increased. |
| format | Article |
| id | doaj-art-adea2a2818054bdaab3b5eba69de2375 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-adea2a2818054bdaab3b5eba69de23752025-02-03T01:27:56ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/88443928844392Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold FluxesLifeng Chen0Kun Liu1Peng Han2Bin Yang3Lianghua Feng4School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114000, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114000, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114000, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114000, ChinaSchool of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114000, ChinaThe high content of aluminum in the steel reacts with the CaO-Si2O-based mold fluxes, resulting in deterioration of the mold slag physical and chemical properties, which cannot be applied to the continuous casting molten slag casting process of high-Mn high-Al steel Herein, the thermodynamic and structural properties of low-reactivity CaO-Al2O3-based mold fluxes were investigated. The thermodynamic properties were studied based on the first principles of quantum mechanics. The results show that the formation of stable structures of B-O and O-B-O in the mold fluxes was beneficial to reduce the probability of structural interconnection, degree of polymerization, and viscosity of the molten slag. The increase in the ratio of CaO/Al2O3 = 0.88–2 led to an increase in the O2− concentration. O2− entered the [AlO4] structure to form a stable structure of [AlO6] and [AlO5], wherein [AlO6] was more stable than [AlO5], reducing the degree of polymerization of the network structure. When cosolvent content B2O3 = 2%–10%, a simple layered structure of [BO3] was formed, and the particle migration resistance, break temperature, and viscous activation energy of the mold fluxes were reduced, while the corrected optical basicity of mold fluxes was gradually increased.http://dx.doi.org/10.1155/2020/8844392 |
| spellingShingle | Lifeng Chen Kun Liu Peng Han Bin Yang Lianghua Feng Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes Journal of Chemistry |
| title | Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes |
| title_full | Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes |
| title_fullStr | Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes |
| title_full_unstemmed | Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes |
| title_short | Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes |
| title_sort | calculation and analysis of the structure and viscosity of b2o3 regulated cao al2o3 based mold fluxes |
| url | http://dx.doi.org/10.1155/2020/8844392 |
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