Production of powder and pressing sinter are the key to the Production of ultra fine cemented carbides ,and the growing of crystals occurs in the process of sinteing of ultra fine cemented carbides.

• 生产超细硬质合金的关键是粉末的制备和压坯的烧结,并且超细硬质合金在烧结过程中容易引起晶粒长大。