(一)粉末冶金的特点粉末冶金是一种少、无切削加工的新工艺,是发展机械工业一门多快好省的新技术。它的生产过程是用化学或机械方法制造各种粉末,然后把粉末压制成各种需要的零件形状,再经适当温度烧结即成。采用粉末冶金法压制零件,其整个工艺过程极为简单,制品尺寸公差范围小,表面光洁度高;此外,对节约金属原材料、节约工时、降低成本、节约工具及机床设备、减少辅助材料的消耗、简化工艺、提高劳动生产率等,均具有显著的效果。 (A) the characteristics of powder metallurgy Powder metallurgy is a small, non-cutting processing of new technology is the development of machinery industry a much faster and better new technology. Its production process is the use of chemical or mechanical methods to manufacture all kinds of powder, and then pressed into various parts of the powder shape, and then sintered at appropriate temperature Serve. The use of powder metallurgy method to suppress parts, the entire process is extremely simple, small size tolerances, surface finish; In addition, the saving of metal raw materials, save time, reduce costs, saving tools and machine tools and equipment to reduce the consumption of auxiliary materials to simplify Technology, improve labor productivity, etc., have a significant effect.