中国超细晶粒WC-Co硬质合金研究进展

Resarch and Development of Ultrafine Grained WC-Co Hardmetals in China

概述了我国超细晶粒WC Co硬质合金的研究开发现状与进展。我国在制备超细晶粒硬质合金主要粉末原料的批量化生产技术及烧结过程中抑制WC晶粒长大等关键技术方面已取得重要进展 ,可制备出超细和纳米晶粒硬质合金 ,获得优异性能。在此基础上推动我国超细晶粒硬质合金向产业化发展的基础条件已趋于成熟。

The present status of research and development activities of ultrafine grained WC Co hardmetals in China were described. The important progress for the key technology of manufacturing ultrafine grained hardmetals such as mass production of 0.1～0.2 μm WC starting powders and restraining WC grain growth during sintering process was achieved. The hardmetals with ultrafine or nano scale WC interception and excellent properties can be made. On these bases it is promising to push forward industrialization of ultrafine WC based cemented carbide in China. Some substantial aspects for the engineering research project of ultrafine hardmetals were proposed.