2016 Fiscal Year Final Research Report
Development of crystallization controlled mold flux for continuous casting of steel
| Project/Area Number |
25820376
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | 連続鋳造用フラックス / 結晶化 / カスピダイン / TTT図 |
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| Outline of Final Research Achievements |
Crystallization behavior of mold fluxes for continuous casting of steel were examined using improved hot thermocouple technique preventing composition change of sample and effects of additive on cuspidine (3CaO.2SiO2.CaF2) crystallization were also examined.
Cuspidine precipitated as a dominant phase in a wide composition range in a quenched glass. while, crystallization from melt was occurred in accordance with phase diagram and the crystallization amount of cuspidine from melt was lower than that of precipitated. Appropriate amounts of additive promote cuspidine crystallization by lowering the melting point or viscosity of the slag, but excess addition causes reduction of cuspidine crystallization amount because of substitution reaction between fluorite (CaF2) and additive.
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| Free Research Field |
金属・資源生産工学
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