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阐述制取金属纳米粉末的等离子体制粉法原理，设计研制长时连续工业化生产设备，制得铁粉平均粒径小于５０ｎｍ，纯度达９９．９％Ｆｅ．
The principle of pulverizing the plasma by the preparation of metal nano powder is described and a long time continuous industrialized production equipment is designed and manufactured. The average particle size of iron powder is less than 50nm and the purity is 99.9% Fe.