一概述常用的钢铁定碳方法中,电导法,库仑分析法宜用于低含量碳及微量碳的分析;非水滴定法宜用于中、低含量碳的分析,随着含碳量的升高,非水溶液对二氧化碳的吸收率降低,跑碳现象严重,分析精度较差。且因用目视法判别滴定终点,人为误差较大;红外定碳法测定范围宽、分析精度好,但仪器复杂、昂贵,目前均为进口仪器;气体容量法属仲裁分析法,分析结果准确可靠,从测定范围,分析精度方面说,在钢铁厂炉前控制分析、成品分析及机械加工厂的原材料分析中均能满足要求。特别在钢铁冶炼过程中,含碳量变化幅度大,采用气体容量定碳法更具有优点,然而, An overview of the commonly used method of steel carbon determination, the conductivity method, Coulometric analysis should be used for low carbon and trace carbon analysis; non-aqueous titration should be used for medium and low carbon analysis, with the carbon content increased , Non-aqueous solution of carbon dioxide to reduce the rate of absorption, serious running carbon, the analysis accuracy is poor. And because of the visual method to determine the end point of titration, human error is larger; Infrared carbon determination of a wide range of good analytical accuracy, but the instrument is complex and expensive, are currently imported instruments; gas volume method is an arbitration analysis, the analysis accuracy Reliable, from the measurement range, the accuracy of analysis, in the steel plant furnace control analysis, analysis of finished products and mechanical processing plant raw material analysis can meet the requirements. Especially in the iron and steel smelting process, the carbon content of a large range of changes, the use of gas capacity of the carbon method has more advantages, however,