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首页> 外文期刊>ISIJ international >Influence of Raw Material Type on Heat Transfer and Structure of Mould Slag
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Influence of Raw Material Type on Heat Transfer and Structure of Mould Slag

机译：原料类型对结晶器渣传热和结构的影响

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摘要

The effect of the raw materials and mixing ratio on the heat transfer and structure of mould slag was studied in the present paper. Three groups of mould slag with identical chemical composition were designed by various raw materials and mixing ratio. The result indicates that the raw material has minor effect on viscosity, melting point and crystalline phase of the mould slag; whereas, it affects the formation and size of crystal. The wollastonite in slag has higher crystallization capacity; therefore, it promotes the formation of thicker solid slag film with higher porosities and consequently prevents the strong heat flux through the slag film. Compared with wollastonite, prefused material in the slag has capability to restrain the crystallization process; hence, the thinner solid slag film with uniform size and finer grain is formed. The experiment proves that prefused mould powder has good performance on heat transfer.
机译：研究了原料和混合比对结晶器渣传热和结构的影响。根据不同的原料和混合比设计了三组化学成分相同的铸渣。结果表明，原料对型渣的黏度，熔点和结晶相影响较小。然而，它影响晶体的形成和尺寸。矿渣中的硅灰石具有较高的结晶能力;因此，它促进了具有较高孔隙率的较厚的固体渣膜的形成，从而阻止了通过渣膜的强热通量。与硅灰石相比，炉渣中的预熔材料具有抑制结晶过程的能力。因此，形成了较薄的固体渣膜，具有均匀的尺寸和更细的晶粒。实验证明，预熔型防霉粉具有良好的传热性能。

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