TRIPOD TYPE CONSTANT VELOCITY UNIVERSAL JOINT

    公开(公告)号:US20240167518A1

    公开(公告)日:2024-05-23

    申请号:US18282332

    申请日:2022-03-11

    申请人: NTN CORPORATION

    IPC分类号: F16D3/205

    摘要: In a tripod type constant velocity universal joint 1 of a double roller type, R/PCD≥0.0850 and t/PCD≥0.145, where PCD is a pitch circle diameter of a roller guide surface 6 of an outer joint member 2. R is a radius of curvature at an intermediate portion between a body portion 31 and a leg shaft 32 of a tripod member 3, and t is a minimum distance from a large-diameter portion 34a of a spline 34 of the tripod member 3 to an intermediate portion 33.

    Manufacturing method of cast-iron friction member
    8.
    发明授权
    Manufacturing method of cast-iron friction member 有权
    铸铁摩擦件的制造方法

    公开(公告)号:US09422994B2

    公开(公告)日:2016-08-23

    申请号:US14013403

    申请日:2013-08-29

    摘要: A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including Fe3O4 on a surface of the nitrogen compound layer.

    摘要翻译: 铸铁摩擦部件通过以下步骤制造:在500℃至600℃的处理温度下对铸造工件进行氮碳共渗处理,从而在工件的表面上形成氮化合物层; 并且在氮碳共渗处理后的温度变为400℃〜480℃时将工件暴露在大气中,以将工件冷却至室温,同时保持与氧的接触状态,从而形成包含Fe 3 O 4的氧化铁层 在氮化合物层的表面。

    MANUFACTURING METHOD OF CAST-IRON FRICTION MEMBER
    10.
    发明申请
    MANUFACTURING METHOD OF CAST-IRON FRICTION MEMBER 有权
    铸铁摩擦件的制造方法

    公开(公告)号:US20140060704A1

    公开(公告)日:2014-03-06

    申请号:US14013403

    申请日:2013-08-29

    IPC分类号: F16D65/12

    摘要: A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including Fe3O4 on a surface of the nitrogen compound layer.

    摘要翻译: 铸铁摩擦部件通过以下步骤制造:在500℃至600℃的处理温度下对铸造工件进行氮碳共渗处理,从而在工件的表面上形成氮化合物层; 并且在氮碳共渗处理后的温度变为400℃〜480℃时将工件暴露在大气中,以将工件冷却至室温,同时保持与氧的接触状态,从而形成包含Fe 3 O 4的氧化铁层 在氮化合物层的表面上。