Co基金刚石串珠胎体中W添加剂的作用  

Effect of W in Co-based matrix of diamond beads

作　　者：郭桦[1] 苏钰 陈剑章 张延军 陈锋 徐西鹏[1] 

机构地区：[1]华侨大学机电及与自动化学院,福建泉州362021 [2]国家特种矿物材料工程技术研究中心,广西桂林541004 [3]桂林特邦新材料有限公司,广西桂林541004

出　　处：《中国工程机械学报》2007年第1期108-112,共5页Chinese Journal of Construction Machinery

基　　金：广西自然科学基金资助项目(桂科0229036)

摘　　要：主要研究在高钴基金刚石串珠胎体中添加W时串珠性能的变化.金刚石表面成分分析证明,W与金刚石表面形成了化学健合.通过比较不同试样的硬度、抗弯强度、磨耗比、并结合扫描电子显微镜(SEM)分析,表明添加适量的W能提高胎体对金刚石的包镶能力、金刚石的出刃值,增加胎体的耐磨性,从而大大提高串珠绳锯的使用性能.In this paper, the performance of diamond beads is studied by adding W into the high Co-based matrix of diamond beads. Accordingly, it is observed from the experiments that the chemical bondage is formed between W and diamond surface. Such properties as the hardness, bending strength and wear ratio are tested and compared amongst different samples. Upon completion of the scanning electron microscope（SEM） analysis, it is found that a proper addition of W can promote the holding force of matrix towards diamond grits, the protrusions of diamond grits, and the wear resistance of matrix. Therefore, the performance of diamond wire, which contains diamond beads, has been significantly improved by employing the W additives.

关 键 词：Co基结合剂 W添加剂 包镶力 耐磨性 

分 类 号：TG732[金属学及工艺—刀具与模具]