论文部分内容阅读
国外有色和黑色金属粉末生产的发展速度是很快的。现以一些主要生产国一北美(美国和加拿大)、瑞典、日本、欧洲—为例,从1970～1979年铁粉及铁基合金粉末的产量上可以看出这种趋势(表1)。在上述时期内,北美和日本铁粉及铁基合金粉末的产量几乎增加了一倍,瑞典和欧洲增加了0.2～0.3倍。近十年来,北美和日本铜粉及铜基合金粉末的产量也平均增长了0.2～0.3倍,钼粉平均增长了一倍。
Foreign non-ferrous and ferrous metal powder production rate of development is fast. This trend can be seen in the production of iron and iron-based alloy powders from 1970 to 1979 (Table 1), taking the major producing countries of North America (United States and Canada), Sweden, Japan and Europe as examples. During these periods, iron and iron-based alloy powder production in North America and Japan nearly doubled, with Sweden and Europe adding 0.2 to 0.3 times. In the past ten years, the output of copper powder and copper-based alloy powder in North America and Japan also increased 0.2 to 0.3 times on average, and the average molybdenum powder doubled.