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一、前言美国的热处理工场,主要是用天然气为原料的控制气氛,天然气消耗量的25%左右是用于控制气氛。由于天然气的需求紧迫,趋向于减轻对天然气的依赖性。与其适应而开发的技术是 N_2基控制气氛热处理,N_2基气体渗碳是其中的一种。N_2基气体渗碳的基本概念是不用原来的 RX 吸热型气体作载气,直接在渗碳炉中发生渗碳性气体,用较少的渗碳性气体有效地进行渗碳的方法。N_2基控制气氛热处理有很多技术上和经济上的优点。将来很有希望用作保护、烧结以
First, the foreword The United States heat treatment workshop, mainly with natural gas as raw material control atmosphere, about 25% of natural gas consumption is used to control the atmosphere. As the demand for natural gas is pressing, it tends to reduce its dependence on natural gas. Its adaptation and development of technology is N_2-based control atmosphere heat treatment, N_2-based gas carburizing is one of them. The basic concept of carburizing N 2 -based gas is that it does not use the original RX endothermic gas as a carrier gas, and carburizing gas occurs directly in the carburizing furnace and the carburizing gas is effectively carburized with less carburizing gas. N 2 -based controlled atmosphere heat treatment has many technical and economic advantages. Very promising future for protection, sintering to