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Sound absorbing material, muffler using the sound absorbing material, and method for forming sound absorbing layer thereof
Sound absorbing material, muffler using the sound absorbing material, and method for forming sound absorbing layer thereof
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机译:吸声材料,使用该吸声材料的消声器及其形成吸声层的方法
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摘要
In order to provide a sound absorbing material superior in acid resistance, alkali resistance and sound absorbing quality and a sound absorbing layer using this sound absorbing material, multiple pieces of basalt yarn obtained by dissolving basalt to be continuous fibers are bundled by a fiber bundling agent to acquire a bundled material, and the bundled material is fibrillated to obtain a bulky sound absorbing material. Moreover, the sound absorbing material is arranged on the outer periphery of a perforated pipe constituting a muffler to form a sound absorbing layer.
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