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根据教学大纲及课本体会到本章的教学目的有下列几点: 1.使学生初步认识钢铁和几种重要有色金属的性质、用途,以及它们在国民经济中所起的作用。 2.介绍从矿石中冶炼铸铁的基本原理,与主要的生产过程,给学生以化学冶金初步的基本知识。 3.使学生明了“合金”的概念,并知道几种最重要的合金的组成性质和用途。 4.通过我国和苏联钢铁工业发展状况,和它在经济建设和国防建设上所起的作用,说明我国在社会主义工业化首先发展重工业的重大意义。
According to the syllabus and textbook experience to this chapter teaching purposes are the following: 1. To enable students to initially understand the nature of steel and several important non-ferrous metals, uses, and their role in the national economy. 2. Introduction The basic principle of smelting cast iron from ore, with the main production process, gives students basic knowledge of chemical metallurgy. 3. Make students understand the concept of “alloy” and know the compositional properties and uses of several of the most important alloys. 4. Through the development of the steel industry in our country and the Soviet Union and its role in economic construction and national defense construction, it shows the great significance of our country in first developing heavy industry in socialist industrialization.