本文利用不同的实验室手段,分析了一组不同成分的铬铁砂。为了了解操作条件下铬铁砂的烧结性能,在各种温度下对试样进行热处理,得到进一步的微观组织,并测定试样的力学性能。还通过动态热力学分析实验测定了试样的放热情况。实验结果表明,正常钢水温度下,铬铁砂表现出两种烧结性能,主要取决于其石英含量。烧结过程中,含石英的铬铁砂具有较高的致密性,形成的液相多;不含石英的铬铁砂体积变化小,机械强度较高。 In this paper, we use different laboratory methods to analyze a group of chromite sand with different compositions. In order to understand the sintering conditions of ferrochrome under operating conditions, the samples were heat-treated at various temperatures to obtain further microstructure and determine the mechanical properties of the samples. The heat release of the sample was also determined by dynamic thermodynamic analysis. The experimental results show that the chromite shows two sintering properties at normal molten steel temperature, mainly depending on its quartz content. In the sintering process, the chromitin sand containing quartz has higher density and more liquid phase formed. The chromite sand without quartz has small volume change and high mechanical strength.