可控气氛热处理近二十年来发展迅速,已成为近代热处理应用最为广泛的工艺。可控气氛种类较多,其中吸热式气氛应用较早,它具有产气成分稳定,使用调节方便等优点,在各国热处理厂家中至今仍处于主导地位,在我国的应用也已有20余年的经验。机电部于1987年将吸热式气氛热处理列为第一个可控气氛热处理工艺标准,今后还要 Controlled atmosphere heat treatment rapid development in recent twenty years, has become the most widely used in modern heat treatment process. Controllable atmosphere more types, including endothermic atmosphere earlier, it has a stable gas composition, the use of convenient adjustment and other advantages in the heat treatment plant in various countries is still in the dominance of the application in our country has more than 20 years experience. Electrical and Mechanical Services Department in 1987 will endothermic atmosphere heat treatment as the first controlled atmosphere heat treatment process standards, but also in the future