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    • 38. 发明公开
    • Long life brake drum and rotor
    • Bremstrommel und Bremsrotor mit langer Lebensdauer
    • EP1178235A2
    • 2002-02-06
    • EP01306235.1
    • 2001-07-19
    • Meritor Heavy Vehicle Technology LLC
    • Naerheim, Yngve
    • F16D65/12F16D65/10
    • F16D65/10F16D65/12F16D69/027F16D2065/132F16D2065/1324F16D2200/0013F16D2200/0021F16D2250/0046
    • A rotating frictional brake element (10) is provided that includes a structural member (12) such as a brake rotor or drum constructed from a first metallic material, preferably steel. The structural member may be spin cast in a mold. The structural member has a surface (14). In the case of a brake drum, the surface is an interior cylindrical surface to which brake shoes are applied. In the case of a brake rotor, the surface is spaced apart annular surfaces to which the brake pads are applied. A frictional layer (15) of a second metallic material different than the first metallic material covers the surface for providing a desired friction characteristic. For example, the friction layer may be gray iron that includes wear resistant particles. Preferably, the structural member is spun while the second metallic material is applied to the surface in molten form.
    • 提供了旋转的摩擦制动元件(10),其包括诸如由第一金属材料(优选钢)构成的制动转子或滚筒的结构构件(12)。 结构构件可以在模具中旋转铸造。 结构构件具有表面(14)。 在制动鼓的情况下,表面是施加制动蹄的内部圆柱形表面。 在制动转子的情况下,表面是间隔开的制动片施加到的环形表面。 不同于第一金属材料的第二金属材料的摩擦层(15)覆盖表面以提供期望的摩擦特性。 例如,摩擦层可以是包括耐磨颗粒的灰铁。 优选地,在将第二金属材料以熔融形式施加到表面的同时旋转结构构件。