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前言随着现代工业的发展,热处理设备和工艺发生巨大变革,其特点是可控气氛热处理的普遍应用。氮基气氛渗炭和碳氮共渗是世界上新的发展趋势。因为这种渗炭方法不用气体发生装置,直接在炉内产生渗炭气体。据报导,可节约天然气消耗量的60～90％,成本节约40～50％,具有节能和经济的双重效果。本文着重讨论工业氮制备的氮基气氛。一、氮基渗炭气氛的基本条件渗炭气氛必须满足一定的技术条件才能确保渗炭过程的顺利进行。那么需满足哪些基本条件呢? 1.在渗炭过程中气体成分必须稳定不变,以便实施有效的碳势控制。氮基气氛一
Preface With the development of modern industry, heat treatment equipment and processes have undergone tremendous changes, which are characterized by the widespread application of controlled atmosphere heat treatment. Nitrogen atmosphere carburizing and carbonitriding is a new trend in the world. Because this carburizing method does not require a gas generating device, carburizing gas is directly generated in the furnace. According to the report, it can save 60-90% of natural gas consumption and save 40-50% of the cost, which has the dual effects of energy saving and economy. This article focuses on the nitrogen-based atmosphere of industrial nitrogen production. First, the basic conditions of nitrogen-based gas carburizing atmosphere Charging atmosphere must meet certain technical conditions in order to ensure the smooth progress of the infiltration process. So what are the basic conditions to be met? 1. The gas composition must be stable during the carburizing process in order to implement effective carbon potential control. Nitrogen atmosphere one