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    • 7. 发明申请
    • MOLDING PROCESS OF HIGHLY HEAT-RESISTANT SOUND ABSORBING AND INSULATING MATERIALS
    • 高耐热声吸收和绝缘材料的成型工艺
    • US20150352758A1
    • 2015-12-10
    • US14705581
    • 2015-05-06
    • Hyundai Motor CompanyKia Motors Corporation
    • Keun Young KimWon Jin SeoJong Beom SeoChi Man ChoKi Dong LeeSu Nam Lee
    • B29C44/12B29C44/10B29C33/58G10K11/16
    • B29C43/52B29C33/58B29C43/14B29C44/10B29C44/1266B29C2043/141B29K2063/00B29K2101/10B29K2105/04B29K2105/12B29K2277/10B29K2995/0002B29K2995/0015B29K2995/0016B29K2995/0017B29L2031/721B60R13/0876D04H1/488G10K11/16G10K11/162Y10T29/49572
    • The present invention relates to a method for molding a substantially improved heat-resistant sound absorbing and insulating material, which uses a sound absorbing material containing, based on 100 parts by weight of the sound absorbing material, an amount of about 20-80 parts by weight of a fiber material having a limiting oxygen index (LOI) of about 25% or greater and a heat resistance temperature of about 200° C. or greater and an amount of about 20-80 parts by weight of a thermosetting binder resin having a heat resistance temperature of about 200° C. or greater and is installed on an engine cylinder block and an automotive body panel above a muffler of a vehicle. The method includes: a releasing agent coating step of coating a releasing agent inside a heated die; a heated compression molding step of fixing a shape; and a cold compression step of stabilizing the shape.The substantially improved heat-resistant sound absorbing and insulating material molded according to the method can reduce the noise inside a vehicle by blocking radiated noise, which is generated from an engine and an exhaust system, from being transferred to the inside of the vehicle through an automotive body panel, can maintain its shape even under a high-temperature environment of about 200° C. or greater generated by the engine and the exhaust system, and can satisfy UL 94V-0 flame retardancy.
    • 本发明涉及一种用于模制基本上改进的耐热吸音和绝缘材料的方法,该方法使用吸音材料,该吸音材料基于100重量份的吸音材料,其含量为约20-80重量份 具有约25%或更大的极限氧指数(LOI)和约200℃或更高的耐热温度的纤维材料的重量和约20-80重量份的热固性粘合剂树脂的量 耐热温度为约200℃以上,并且安装在发动机气缸体和车辆消声器上方的汽车车身面板上。 该方法包括:在加热模具内涂布脱模剂的脱模剂涂布步骤; 固定形状的加热压缩成型步骤; 以及稳定形状的冷压缩步骤。 根据该方法模制的基本上改善的耐热吸音和绝缘材料可以通过阻止从发动机和排气系统产生的辐射噪声通过一个或多个传感器传递到车辆内部来减少车辆内部的噪声 汽车车身面板,即使在发动机和排气系统产生的约200℃或更高的高温环境下也能够保持其形状,并且可以满足UL 94V-0阻燃性。