摘要
采用了真空钎焊工艺把聚晶金刚石复合片钎焊到硬质合金支柱上,获得制造油田钻井用钻头的关键元件——聚晶金刚石切齿.钎缝的抗剪切强度达451.9MPa,金刚石的磨耗比下降了7.93%.现场应用表明,用本工艺钎焊的聚晶金刚石切削齿制造的钻头质量稳定,基本无掉片现象.
Synthetic diamond sheets are brazed onto hard alloy columns in order to obtained diamond cutting teeth of drill tip for oil field drllingring. The shear strength of brazing joint reaches up to 451. 9 MPa and abrasion rate lowers down to 7. 93% as using vacuum process. The cutting teeth are stable enough and proved by site applications.
出处
《焊接》
北大核心
1995年第9期11-13,共3页
Welding & Joining
