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Outline
In the casting process of rare earth steel, the interaction between molten steel of rare earth steel and mould flux makes the physical and chemical properties of mould flux change so that the metallurgical properties of mould flux are affected and limited. In this paper, the effects of molten steel of rare earth steel on physical and chemical properties and phase composition of mould flux are systematically analyzed. The results show that the rare earth oxide entered slag mainly exists in the form of rare earth silicate. The generated rare earth calc silicate with high melting point is the main reason for the increase of melting temperature and viscosity for mould flux. The longer the action time of molten steel of rare earth steel and mould flux, the more the rare earth oxide is absorbed and dissolved in the slag of mould flux, the more the crystalline mineral is precipitated in the slag and the higher the crystallization rate of slag.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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