Environment-friendly light sound insulation pad and production method thereof

摘要: The invention discloses an environment-friendly light sound insulation pad which is of a three-layer structure comprising absorbing layer, layer and elastic in sequence from top to bottom. makes contact with car body metal plate. further production method the pad. comprises steps that cut, arc discharge processing carried out on layer; heated; semi-finished blanket placed lower die sucking, foaming punching integrated be positioned; heated radiation mode; sucked die; surface skin molten, upper are closed, isocyanate premixed polyether polyols poured forms after opening, product taken out. By adoption structure, weight single reduced, whole level improved, noise lowered, hole site precision high, has advantages being low odor intensity, VOC like.