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1 引言 近来,由于超细硬质合金具有优异的物理力学性能(如:强度大、硬度高和良好的切削性能)因而在国外得到了高速的发展。而要制备超细硬质合金首先要解决的,便是超细粉末的制备。
1 Introduction Recently, ultrafine cemented carbide has been developed rapidly in foreign countries due to its excellent physical and mechanical properties (such as high strength, high hardness and good cutting performance). To prepare ultra-fine carbide first to be solved, is the preparation of ultrafine powder.