粉末冶金是一项有着广阔市场的服务面广的工业,例如:家用设备中的自润滑轴承;汽车传动装置中的锻件;喷气飞机发动机上的涡轮盘;办公用复印机的齿轮和凸轮;坦克和卡车上的摩擦材料;直升飞机和喷气式飞机上的计数器摆锤;酿造啤酒用的过滤器;加拿大硬币;家庭用碰簧闩,等等,都采用了粉末治金制品。本文的重点是介绍粉末冶金工业中几个主要方面的新动向。 1981年,常规的“压制和烧结”粉末冶金生产获得回升。北美1981年用于粉末冶金零件的铁粉的装运量比1980年增加17％以上,达到137(?)000吨,但1981年的产量仍然低于1978年 Powder Metallurgy is an extensive service industry with a wide range of markets such as self-lubricating bearings in household equipment; forgings in automotive transmissions; turbine disks on jet aircraft engines; gears and cams for office copiers; tanks and Friction materials on trucks; counter pendulums on helicopters and jet aircraft; filters for brewing beer; Canadian coins; home-use spring-loaded latches, etc., all use powder metallurgical products. The focus of this article is to introduce several new trends in the powder metallurgy industry. In 1981, conventional “pressed and sintered” powder metallurgy production rebounded. North American shipments of iron powder for powder metallurgy parts increased by more than 17% in 1981 to 137 (?) 000 tons compared with 1980, but production in 1981 was still lower than in 1978