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Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials

机译:带有交替表面的耐磨和抗磨损材料的轴颈和导向轴承

摘要

The journal and/or pilot bearings of a rotary cone earth boring bit are constructed to include alternating areas of wear resistant materials and anti-galling materials. The bearing matrix is formed by compressing a powdered alloy in the shape of the desired bearing element. The bearing matrix is sintered, thereby forming a porous bearing element. An anti-galling material is infiltrated into the porous matrix of the bearing element and the bearing element is hardened. The resulting bearing element includes areas of wear resistant materials and areas of anti-galling materials.
机译:旋转圆锥土工钻头的轴颈和/或导向轴承构造成包括耐磨材料和抗磨损材料的交替区域。通过压缩呈所需轴承元件形状的粉末状合金来形成轴承基体。将轴承基体烧结,从而形成多孔的轴承元件。防咬材料渗入轴承元件的多孔基质中,并使轴承元件硬化。所得的轴承元件包括耐磨材料区域和抗磨损材料区域。

著录项

  • 公开/公告号FR2243368B1

    专利类型

  • 公开/公告日1981-08-28

    原文格式PDF

  • 申请/专利权人 DRESSER INDUSTRIES INC;

    申请/专利号FR19740030269

  • 发明设计人

    申请日1974-09-06

  • 分类号F16C33/14;F16C33/12;E21B9/08;

  • 国家 FR

  • 入库时间 2022-08-22 15:08:11

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