本文介绍了用丙烷加空气直接制备可控气氛的原理、方法及实验公式和数据,是作者及其导师、同事在美国福特汽车公司的试验总结的一部分。同时还介绍了直接制备可控气氛由实验室推广应用于推杆炉,即应用于大规模的生产。这对我国的现代热处理如何使用可控气氛有更为直接的参考价值。 This paper introduces the principles, methods and experimental formulas and data for direct preparation of controlled atmosphere by using propane plus air. It is a part of the experimental summary of the author and his mentor and colleague at Ford Motor Company in the United States. At the same time also introduced the direct preparation of controlled atmosphere promoted by the laboratory used in putter furnace, which is used in large-scale production. This is more direct reference to how to use a controlled atmosphere in modern heat treatment in our country.