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发明申请
US20050067195A1 Drill member for rock drilling and a method for manufacturing the drill member 有权
用于凿岩的钻孔构件和用于制造钻孔构件的方法

  • 专利标题： Drill member for rock drilling and a method for manufacturing the drill member
  • 专利标题（中）： 用于凿岩的钻孔构件和用于制造钻孔构件的方法
  • 申请号： US10505152
    申请日： 2003-02-18
  • 公开(公告)号： US20050067195A1
    公开(公告)日： 2005-03-31
  • 发明人: Johan Linden
  • 申请人： Johan Linden
  • 优先权： SE0200505-6 20020221
  • 国际申请： PCT/SE03/00260 WO 20030218
  • 主分类号： E21B17/042
  • IPC分类号： E21B17/042 ;  F16L15/06 ;  E21B17/20
Drill member for rock drilling and a method for manufacturing the drill member
摘要：
A drill member for percussive rock drilling is formed by forming a compound component and friction welding the compound component to the end of a drill rod. The compound component is formed by welding a core part within a shell part and machining a thread into either the shell part (male thread) or core part (female thread). The part in which the thread is machined is formed of low alloy steel, and the other part is formed of stainless steel, wherein the thread bottom is formed of stainless steel, and the thread crests are formed of low alloy steel.
摘要（中）：

通过形成复合部件并将复合部件摩擦焊接到钻杆的端部而形成用于冲击式钻岩的钻头部件。 复合部件通过将壳体部分中的芯部焊接并将线加工到壳部（外螺纹）或芯部（内螺纹）中而形成。 螺纹被加工的部分由低合金钢形成，另一部分由不锈钢形成，其中螺纹底部由不锈钢形成，并且螺纹牙顶由低合金钢形成。

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