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多特征點鐵水成分的熱分析

Forecast Molten Iron Composition by Thermal Analysis with Multiple Special Points

  • 摘要: 加入白口化元素迫使鐵水凝固成白口,使鐵水的冷卻曲線被扭曲,并失去了熱分析冷卻曲線一些重要的特征點。用鐵水凝固成灰口的冷卻曲線上的5個特征點作為預報鐵水化學成分的判據,可以提高預報成分的精度。化學成分C、Si和5個特征點的線性相關程度是不同的。其它化學成分和鐵水重熔次數也影響預報成分C、Si的精度。還提出鐵水白口化傾向的補償當量的定量表示法。

     

    Abstract: The molten iron is solidified out into white iron by using whiting elements. It changed the cooling curve of molten iron, and lost some important special points in cooling curve of thermal analysis. When the molten iron solidifys grey iron, the five special points of cooling curve can be used to forecast composition C and Si exactly. The linearity of special points is different. The other compositions and molten number affect accuracy of forecasting. This paper proposes the whitening compensation equivalent.

     

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