前言能源是发展国民经济的重要物质基础,没有能源任何现代化生产将无法进行。随着科学技术的不断发展,对能源的需求最越来越大。如何开发和合理利用能源已成为世界各国十分重视的问题。机械工业是一个消耗能源的重要部门,而热加工则是消耗能源的主要方面。根据我所热 Foreword Energy is an important material basis for the development of the national economy. Without any energy, any modern production will be impossible. With the continuous development of science and technology, the demand for energy is growing. How to develop and use energy reasonably has become a very important issue for all countries in the world. Machinery industry is an important part of energy consumption, and thermal processing is the main aspect of energy consumption. According to my hot