Automobile dash board sound insulation pad making process
A preparation process and dash panel technology, which is applied in the field of automobile dash panel sound insulation pad preparation process, can solve problems such as failure to meet customer requirements, poor noise reduction and heat insulation effects, etc., and achieve improved preparation speed, convenient production, and fast speed Effect
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[0018] Through various physical performance tests, chemical performance tests and user experience investigations on the finished sound insulation mats under various specific implementation process parameters, the following schemes are obtained as the best embodiments.
[0019] The preparation process steps are as follows:
[0020] [1] Preparation of the felt layer: put the felt raw material on the mold for hot-pressing molding, the steps are: first feed the laid material into the molding mold, and then pressurize the water vapor, the ventilation time is 8s, the water vapor The pressure is 0.88MPa, the water vapor inlet time is 10s, and the water vapor outlet time is 17s; after the ventilation is completed, it is transferred to a hot-pressing mold, pressurized to form it, and a semi-finished product is obtained; the heating and holding time is 10min, and the molding temperature is 180 ℃, molding pressure 6.5MPa; after cooling, put it on the shaping tool and set it aside;
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