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本文研究了卧式炉与电弧炉测定碳琉的一些理论问题。一、热源与温度问题。计算得出,一克钢样,若用0.2克锡助熔,燃烧后,可放出近2000卡的热。若试样用量合适,就温度而言,计算得出,用电弧炉燃烧测定碳硫是可行的。此结论对电弧炉有实际意义。二、SO_2的转化问题。转化与介质、催化剂有关外,重要的是温度影响。本文结合测定碳硫的实际情况得出了转化率 X_T 与平衡常数 K_p 间的简洁公式 X_T=(K_P)/(K_P+1)。通过平衡常数间接的得到了温度与转化率之间的关系。计算所得数据,为提高分析的准确度提供理论依据。三、MoO_3的助熔(发热)理论问题。此问题是钢铁分析工作者关心的问题。作者经过热力学计算发现,电弧炉中有MoO_3+FeO=FeO.MoO_3的反应,X 射线粉末分析,也证实了FeOMoO_3 的存在。此反应的△G_反=-32.311(千卡)。△H_(1500)=～100.426(千卡)。电弧炉中发现此反立,对于阐明 MoO_3的作用机理有重要作用.本文对全国传播很广泛的吸附理论提出了疑议。最后,本文得出七点结论,这些结论与实践相结合,均得到予期效果。
This paper studies some theoretical problems of the determination of carbon and sulfur in horizontal furnace and electric arc furnace. First, the heat and temperature problems. Calculated, one gram of steel, if using 0.2 grams of tin flux, after burning, can release nearly 2000 calories. If the amount of the sample is suitable, as far as the temperature is concerned, it is calculated that it is possible to measure carbon and sulfur by electric arc furnace combustion. This conclusion is of practical significance to EAF. Second, SO2 conversion problems. Conversion and media, the catalyst, the important thing is the temperature effect. In this paper, we conclude the simple formula X_T = (K_P) / (K_P + 1) between the conversion rate X_T and the equilibrium constant K_p based on the actual situation of the determination of carbon and sulfur. The relationship between temperature and conversion is indirectly obtained by the equilibrium constant. Calculated data to provide a theoretical basis for improving the accuracy of the analysis. Third, MoO_3 flux (fever) theoretical issues. This issue is a concern for steel analysts. After thermodynamic calculation, the author found that the reaction of MoO_3 + FeO = FeO.MoO_3 in the electric arc furnace and the X-ray powder analysis also confirmed the existence of FeOMoO_3. This reaction △ G_ anti = -32.311 (kcal). ΔH_ (1500) = ~ 100.426 (kcal). This anti-reflection found in the electric arc furnace plays an important role in clarifying the mechanism of action of MoO3.This paper raises some doubts about the theory of adsorption widely distributed in the country. Finally, this article draws seven conclusions, these conclusions and practice, have been the expected results.