气氛控制通常包括炉气成分测定和碳势控制,它是氮基气氛热处理过程的重要环节,也是衡量其工艺技术水平的尺度。如果不随时对炉气氛的成分进行精确的测定,并对碳势进行严格的控制,那么,在光亮热处理中,就有可能产生增碳或脱碳现象;在渗碳和碳氮共渗时,将会使钢件表面含碳量和碳浓度梯度分布 Atmosphere control usually includes the determination of the composition of the furnace gas and the carbon potential control. It is an important part of the heat treatment process of the nitrogen-based atmosphere and a measure of the technological level of the atmosphere. If you do not always accurate determination of the composition of the furnace atmosphere, and the carbon potential of the strict control, then in the bright heat treatment, there may be carbon or decarbonization phenomenon; carburizing and carbonitriding, Will make the steel surface carbon content and carbon concentration gradient