摘要
分析了超粗晶粒硬质合金的韧性与耐磨性等性能特点,以及用作盾构刀具时在施工中对地下土质、水压的复杂变化工况的良好适应性。采用相变控制技术和致密化处理技术,研制的合金材料获得了良好的综合性能。制成盾构刀具经考核,其使用效果与进口同类产品相当。
The toughness and abrasive resistance of super-coarse cemented carbide, and the adaptability of shield tools made from such carbide to underground earth and water-pressure in tunneling construction were studied. By the use of phase-transition control and densification techniques, quality cemented carbide was developed. It was proved by practical validation, such shield tools have same results as imported tools.
出处
《粉末冶金工业》
CAS
北大核心
2009年第3期36-40,共5页
Powder Metallurgy Industry
关键词
粗晶粒硬质合金
盾构刀具
相变控制技术
致密化处理技术
coarse cemented carbide
shield tool
phase-transition control technique
densification technique
