The invention discloses an automobile sound insulation main carpet preparation method. The automobile sound insulation main carpet preparation method is characterized in that the main carpet is formed by five layers from top to bottom; the A layer, the B layer, the C layer, the D layer and the E layer are high-temperature pressed together. The preparation method comprises the following steps of opening, mixing, carding, lapping acupuncturing, rolling, raising and coiling PET fibers to form the A layer, opening, mixing, carding, lapping acupuncturing and hot ironing PET+PP fibers to form the C layer, evenly scattering PE powder on the C layer via a baking oven to form rollers, attaching a PEPA film on the back surface of the coiled product in the third step via the baking oven to form coils, bonding the A layer and the non-PEPA film-coated surface of the product in the fourth step via spraying a PE film, then slicing to form the sound insulation main carpet. The beneficial effects of the automobile sound insulation main carpet preparation method are that films are attached to the main carpet for twice and power is scattered for once; sound is consumed through times, so great sound insulation effect and excellent sound absorbing effect can be achieved; and the preparation method is simple.


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    Title :

    Automobile sound insulation main carpet preparation method


    Contributors:

    Publication date :

    2015-12-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse



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