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七十年代资本主义世界的粉末冶金以10%的年增长速度发展着.近十多年来,一些粉末冶金新技术、新材料对工业的发展具有重要推动作用,特别表现在粉末冶金超耐热材料、钛合金、铝合金、高速钢等材料和粉末锻造、热等静压等新技术.美国1980年由于经济衰退和汽车销售量激剧下降,因此金属粉末产量下降19%(为24.5万吨),但最后一个季度回升,日本和苏联近年来以20%以上的年增长率上升. 粉末冶金制品对提高制品性能、降低生产成本、节省能源方面的优点越来越引起广泛重视,因而逐渐取代铸造、锻造、机械加
In the seventies, the powder metallurgy in the capitalist world has been growing at an annual rate of 10% .For the past ten years, some new technologies and new materials for powder metallurgy have played an important role in promoting the development of the industry, especially in super-heat-resistant powder metallurgy Materials, titanium alloys, aluminum alloys, high-speed steels, powder forging and hot isostatic pressing etc. In the United States, the output of metal powder dropped by 19% due to the economic recession and the drastic drop of automobile sales in 1980 (for 245,000 tons ) But recovered in the last quarter, with Japan and the Soviet Union rising at an annual rate of 20% or more in recent years.Multimetalliferous products have drawn increasing attention due to their advantages in improving product performance, reducing production costs and saving energy, thus gradually replacing Casting, forging, mechanical plus