WOODY SOUND-ABSORBING MATERIALS AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A woody sound-absorbing materials manufacturing method is provided having high sound-absorbing power and appropriate thermal insulation efficiency and is harmless to a human body. CONSTITUTION: A woody sound-absorbing materials manufacturing method by recycling woody and non-woody wastes comprises the steps of; stirring after injecting synthetic resinous adhesives to woody particles at a weight ratio of 5 to 30 percent; shaping the woody particle stirred with the adhesive to a mat(9); putting the mat to a molding frame(1) provided with many exhaust holes(2), and interposing upper and lower cowls(5,7) containing core pins(6,8) having a different diameter respectively to form the same axle reciprocally, to face each other, then compressing with presses(3, 4) on the upper and lower parts.