本文在叙述低碳硅钢的脱碳动力学和RH真空脱碳原理时,给出了不同原始含碳量的脱碳曲线。为了提高金属收得率,在转炉内应将含碳量降到0.05％左右再出钢,而后进行真空处理。RH装置可将含碳量降到0.01％或以下。实测数据表明,可以用lg Ct/Co=0.05t式来确定脱碳过程。最后,根据操作工艺给出RH脱气设备的设计特点。 In this paper, the decarburization kinetics and RH vacuum decarburization of low-carbon silicon steel are described, and the decarburization curves of different initial carbon contents are given. In order to increase the metal recovery rate, the carbon content in the converter should be reduced to about 0.05% before tapping, and then vacuum treatment. The RH unit reduces the carbon content to 0.01% or less. The measured data show that lg Ct / Co = 0.05t can be used to determine the decarburization process. Finally, according to the operating process RH deaeration equipment design features.