利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104278953A 一种聚晶金刚石复合齿、制备方法及潜孔钻头 无效 - 驳回

一种聚晶金刚石复合齿、制备方法及潜孔钻头
摘要：
本发明公开了一种聚晶金刚石复合齿、制备方法及潜孔钻头，所述聚晶金刚石复合齿包括硬质合金基体和聚晶金刚石层，所述硬质合金基体与聚晶金刚石层之间设有耐冲击层，所述耐冲击层由以下质量百分比的组分组成：金刚石75％～80％、WC10％～15％，余量为粘合剂。本发明的聚晶金刚石复合齿，在硬质合金基体与聚晶金刚石层之间设有耐冲击层，所述耐冲击层由金刚石、WC和粘合剂组成，耐冲击层提高了硬质合金基体和聚晶金刚石层之间的结合力，有效减少了拉应力集中，提高了聚晶金刚石复合齿的抗冲击韧性，进而提高了聚晶金刚石复合齿的质量，延长了使用寿命。
摘要（英）：

The invention discloses a polycrystalline diamond composite tooth, a preparation method and a down-hole drill bit. The polycrystalline diamond composite tooth comprises a hard alloy matrix and a polycrystalline diamond layer, wherein an impact-resistant layer is arranged between the hard alloy matrix and the polycrystalline diamond layer, and consists of the following components in percentage by weight: 75-80 percent of diamond, 10-15 percent of WC (Wolfram Carbide) and the balance of adhesive. According to the polycrystalline diamond composite tooth, the impact-resistant layer is arranged between the hard alloy matrix and the polycrystalline diamond layer, and consists of the diamond, the WC and the adhesive, so that the binding force between the hard alloy matrix and the polycrystalline diamond layer is improved by the impact-resistant layer, tensile stress concentration is effectively reduced, the impact toughness of the polycrystalline diamond composite tooth is improved, further the quality of the polycrystalline diamond composite tooth is improved, and the service life is prolonged.

0/0