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采用普通模压方法，压制了用高能球磨（机械合金化）法制备的纳米硬质合金粉末，研究了压坯密度与压制压力之间的关系，并与普通微米硬质合金进行了比较，结果表明：纳米硬质合金的压坯密度低于微米硬质合金的压坯密度，随球磨时间的延长压坯密度有下降的趋势;VC的存在使压坯密度下降;从实验数据回归出的压制方程来看，纳米粉末的硬化指数低于微米粉末的硬化指数，而压制模数却远高于微米硬质合金的，表明纳米硬质合金粉末的硬化趋势不大，但摩擦力及由此引起的压力损失是相当大的。
The common molding method was used to suppress the nano-cemented carbide powder prepared by the high-energy ball milling (mechanical alloying) method. The relationship between the compact density and the pressing pressure was studied and compared with that of ordinary micro-cemented carbide. : The compact density of nano-cemented carbide is lower than the density of micro-cemented carbide, the density of compact decreases with the ball milling time; the density of compact decreases with the presence of VC; the equation of pressing From the point of view, the hardening index of nano-powder is lower than the hardening index of micro-powder, while the pressing modulus is much higher than that of micro-sized cemented carbide, indicating that the hardening tendency of nano-cemented carbide powder is not big but the frictional force Pressure loss is quite large.