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    • 3. 发明授权
    • Two layer pumpable sound deadener
    • 双层可泵送消声器
    • US07448671B2
    • 2008-11-11
    • US11018194
    • 2004-12-21
    • Craig RackersJeff CristDan OndrusStephen LudwigRajan EadaraKirsen QuanRoy JacobAnthony Konovaliv
    • Craig RackersJeff CristDan OndrusStephen LudwigRajan EadaraKirsen QuanRoy JacobAnthony Konovaliv
    • B60R27/00
    • B60R13/0815
    • A two layer sound deadening material is formed from pumpable material applied through a pair of extrusion heads mounted on a single mount. A robot, used in high speed mass production automotive assembly lines, moves the door panel relative to the stationary extrusion heads to allow the simultaneous application of the two layers onto the interior side of the door. The first layer is formed of a thermosetting composition containing epoxy, rubber and a catalyst and adheres directly to the door panel. The second layer is formed of a thermosetting composition containing an epoxy resin, a thermo plastic copolymer and a curative which will adhere directly to the first layer due to similar chemical structures. The second layer is positioned such that the edges thereof are inside of the corresponding edges of the first layer to prevent read through transmission of noise from the body or door panel.
    • 两层消音材料由可通过安装在单个安装座上的一对挤压头施加的可泵送材料形成。 用于高速大规模生产汽车装配线的机器人相对于固定的挤压头移动门板,以允许将两层同时施加到门的内侧。 第一层由含有环氧树脂,橡胶和催化剂的热固性组合物形成,并直接粘附在门板上。 第二层由含有环氧树脂,热塑性共聚物和固化剂的热固性组合物形成,该固化剂由于类似的化学结构将直接粘附到第一层上。 第二层被定位成使得其边缘在第一层的相应边缘的内部,以防止从身体或门板传播噪音。