推动粉末冶金工业发展的新技术［美］ＰｅｔｅｒＫ．Ｊｏｈｎｓｏｎ１前言粉末冶金行业的传统“压制和烧结”部门已实现了它的第４个增长年，虽然它从１９９２～１９９４年三年期间的迅猛增长已有所减缓。例如，总的北美铁粉发运量在１９９５年增加了２．７％，达到了３１... Promote the development of powder metallurgy industry, new technologies [the United States] PeterK. Johnson1 Introduction The traditional “press and sinter” sector in the powder metallurgy industry has achieved its fourth year of growth, though it has slowed down from a period of rapid growth during the three years from 1992 to 1994. For example, the total North American iron shipments increased by 2.7% in 1995 to reach 31 ...