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一些重要的渗碳与脱碳反应是用1010钢的薄片在保持流速不变的控制气氛管式炉中研究测定的。在小型的商业渗碳炉中所得到的渗碳数据进一步证实在典型炉气的气氛系中 CO 与 H_2化合而形成 C 与 H_2O 是碳传递到工件的主要反应。为富化而导入炉内的碳氢化合物由于触媒裂解反应,一开始就将碳沉积在加热表面上,由于加热表面和零件之间的温度差异,在使碳传递到被渗零件反应表面的过程中,CO—H_2反应起着一个“碳
Some important carburizing and decarburizing reactions were investigated using a sheet of 1010 steel in a controlled atmosphere tube furnace that maintained the same flow rate. Carburizing data obtained in a small commercial carburizing furnace further confirmed that CO and H 2 were combined to form C and H 2 O in the atmosphere of a typical furnace gas as the main reaction of carbon delivered to the workpiece. The hydrocarbons introduced into the furnace for enrichment are initially deposited on the heated surface due to the catalytic cracking reaction. Due to the temperature difference between the heated surface and the part, the process of transferring carbon to the surface of the infiltrated part In the CO-H 2 reaction plays a "carbon