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一、序 言 长期以来,粉末冶金生产对于制造精密成型件提供了非常经济的条件,其最主要的工艺流程如图1所示(图略)。该方法原材料利用率很高,约达95％;能量消耗也非常小,这方面与其它生产方法的比较见图2。最近几年,原材料和能源形势迫使加速许多成型件生产方法的改善和新的发展。此外,粉末冶金在半成品的制造中也获得了应用。
First, the preamble For a long time, powder metallurgy for the manufacture of precision molded parts provides a very economical condition, the most important process shown in Figure 1 (Figure omitted). The method of high utilization of raw materials, about 95%; energy consumption is also very small, in this regard compared with other production methods shown in Figure 2. In recent years, the raw materials and energy situation have forced accelerated the improvement and new development of many molded parts production methods. In addition, powder metallurgy is also used in the manufacture of semi-finished products.