高频燃烧红外吸收法测定钢中超低含量碳

Determination of the Extra-low Carbon Content in the Steel with the High Frequency Combustion and Infrared AbsorptionMethod

应用LECO CS600型红外碳硫分析仪测定DC03钢中低于0.0100%的超低碳含量,并对影响测定结果的因素:坩埚的处理、助熔剂的种类和用量、氧气纯度、试样处理及校准方法进行了试验和讨论,方法检出限为0.0001%。

The extra-low carbon content of less than 0.010 0% in DC03 Steel was determined by ap- plying LECO CS600 Infrared Carbon-Sulfur Analyzer, and the factors that influencing determination results, such as crucible treatment, sort and dosage of fluxing agent, oxygen purity, sample treatment and calibra- tion, were tested and discussed, and the determination limit by this method is 0.000 1%.