论文部分内容阅读
滴注式气体渗碳过程的计算机控制作者陈仁悟叶尚川赵高扬邓开金陈伯荣许淑贞罗丽华在井式气体渗碳炉中,采用滴注法进行气体渗碳时,炉内气氛中的化学反应往往达不到平衡。在这种情况下,用建立在化学平衡基础上的间接法对炉内气氛的碳势进行测量和控制,不易得到理想的结果。本文提出采用热丝法直接对炉内气氛的碳势进行测量和控制,阐述在这种条件下在不同碳势的气氛中渗碳时,工件表面碳含量、渗碳层深与渗碳时间的关系和沿层深碳浓度的分布的预计,以及渗碳过程的计算机控制。结果表明,碳势控制精度可达±0.05％,表面碳浓度为±0.05％,层深为±0.1mm,沿层深各点碳浓度分布预计值与实测值偏差±0.1％。
Computer Control of Carburizing Process of Injecting Gas Chen Ren-Wu, Ye Shang-Chuan, Zhao Gaoyang, Deng Kai-Jin, Chen Burong, Xu Shusheng, Luo Lihua In carburizing gas wells, when the gas carburizing is carried out by the method of instillation, the chemical reaction in the atmosphere in the furnace often does not reach To balance. In this case, the carbon potential of the atmosphere in the furnace is measured and controlled by an indirect method based on a chemical equilibrium, so that it is not easy to obtain the desired result. In this paper, the hot wire method is used to directly measure and control the carbon potential of the atmosphere in the furnace. The carburization, the depth of the carburized layer and the carburizing time during the carburizing under different carbon potential conditions are described. Predictions of the relationship and distribution of deep carbon concentrations along the layers, and computer control of the carburizing process. The results show that the control accuracy of carbon potential is up to ± 0.05%, the surface carbon concentration is ± 0.05% and the depth of layer is ± 0.1mm. The predicted value of carbon concentration distribution along each depth is ± 0.1% deviation from the measured value.