随着科学技术时不断发展和新产品的日益增多,工装——专用工具、量具、夹具及各种模具的变化和更新越加频繁,工装制造量也日趋增加。据统计,1971年我国用于工模具的钢材约为6.1万吨,占钢产量的30％。又由于工装还存在着质量、寿命、精度、周期、技术等方面的问题,因此能耗高,成本高,故寻求工装制造中的节能途径势在必行。 With the continuous development of science and technology and the increasing number of new products, tooling, special tools, measuring tools, fixtures and various mold changes and updates are more frequent, tooling manufacturing volume is also increasing. According to statistics, in 1971 China’s steel used for molds is about 61,000 tons, accounting for 30% of the steel output. Because of the tooling, quality, life expectancy, precision, cycle, technology and other issues still exist, so high energy consumption, high cost, it is imperative to find ways to save energy in tooling manufacturing.