自六十年代以来,国内在炉气碳势控制方面进行了大量试验研究工作,不少单位已能用露点仪或红外仪来控制炉气碳势,取得了较好的效果。但是由于这些仪器结构较复杂,取样系统要求较高,需要取样泵、流量计、调压阀、水冷却套、多级过滤、吸水装置等。此外,每天用标准气校对,给使用、维护、管理都带来麻烦,所以影响推广使用。近几年来在国外已开始使用氧探头检测,控制热处理炉气碳势,使用效果良好。在国内,北航、戚墅堰机车车辆研究所,机械工业部机电研究所等单位也做了不少试验研究工作。这种仪器在国内尚属试制阶段,使用寿命较短,生产上使用的实例还没有。南京分析仪器厂为生产该仪器,从英国肯特仪器公司引进了氧探头生产专利,不久将成批生产这 Since the 1960s, a large amount of experimental research has been conducted in the control of furnace carbon potential. Many units have been able to control the carbon potential of furnace gas with a dew point meter or an infrared spectrometer and achieved good results. However, due to the complicated structure of these instruments and the high sampling system requirements, sampling pumps, flow meters, pressure regulating valves, water cooling jackets, multi-stage filtration and water absorption devices are needed. In addition, every day with standard gas proofreading, to use, maintenance, management have trouble, so the promotion of the use of. In recent years in foreign countries have begun to use oxygen probe detection, control of carbon gas furnace heat treatment, the use of good results. In China, Beihang University, Qishuyan Rolling Stock Research Institute, Mechanical and Electrical Research Institute of Machinery Industry and other units have also done a lot of experimental research. This kind of instrument is still in trial stage in China, with a short service life and no examples of production. Nanjing Analytical Instrument Factory to produce the instrument, the British company Kent Instrument introduced oxygen probe production patents, which will soon be mass-produced