TIGHTENING MEMBER, COMPOSITION OF PAINT FOR THE MEMBER, AND TIGHTENING DEVICE
    3.
    发明公开
    TIGHTENING MEMBER, COMPOSITION OF PAINT FOR THE MEMBER, AND TIGHTENING DEVICE 审中-公开
    Spannelement,Lackzusammensetzungdafür和und Spanneinrichtung

    公开(公告)号:EP1273641A1

    公开(公告)日:2003-01-08

    申请号:EP01981001.9

    申请日:2001-11-07

    摘要: A natural resin is dissolved in liquid oils and fats while a phosphate-based extreme pressure additive is evenly mixed in to prepare a paint composition. After the paint composition is applied to a high-strength hexagon head bolt (2) and a hexagon nut (3), centrifugal separation is performed for removal of excess paint composition and drying of the composition. Coating films can easily and quickly be formed. The high-strength hexagon head bolt (2) and the hexagon nut (3) thus provided with a coating film are fastened to each other by screwing. The heat and pressure generated during the fastening process cause the phosphate-based extreme pressure additive to react with the metal on the surface of the high-strength hexagon head bolt (2) and the hexagon nut (3) so that the phosphate-based extreme pressure additive in the film bonds to the metal. The coefficient of friction is reduced regardless of the smoothness of the surface of the high-strength hexagon head bolt (2) or the hexagon nut (3). As a low, stable coefficient of friction produces a stable torque-axial tension relationship, a stable fastened condition can easily be achieved.

    摘要翻译: 将天然树脂溶解在液体油和脂肪中,同时将磷酸盐极压添加剂均匀混合以制备涂料组合物。 在将涂料组合物涂覆到高强度六角头螺栓(2)和六角螺母(3)上之后,进行离心分离以除去多余的涂料组合物并干燥组合物。 涂膜可以容易且快速地形成。 因此设置有涂膜的高强度六角头螺栓(2)和六角螺母(3)通过拧紧彼此紧固。 在紧固过程中产生的热和压力导致磷酸盐极压添加剂与高强度六角头螺栓(2)和六角螺母(3)的表面上的金属反应,使得磷酸盐基极限 膜中的压力添加剂与金属键合。 与高强度六角头螺栓(2)或六角螺母(3)的表面平滑度无关地,摩擦系数降低。 作为低的,稳定的摩擦系数产生稳定的扭矩 - 轴向张力关系,可以容易地实现稳定的紧固状态。