The invention discloses a preparation method and application of an automobile NVH material. The preparation method comprises the steps that S1, PET short fibers are taken and conveyed to a cotton feeding box through a conveying belt, the PET short fibers conveyed by the cotton feeding box are opened through an opener and then conveyed to a carding machine to be carded, and the carded PET short fibers are conveyed to a cross lapping machine; s2, PP particles are taken and poured into a single-color feeding machine, the PP particles are metered through a metering pump and then conveyed to a spinning die head, sprayed PP fibers and the PET short fibers formed in the S1 are mixed, glue spraying and cloth attaching are conducted, sound-absorbing cotton is obtained, and the sound-absorbing cotton is wound through a winding machine; s3, spraying an adhesive on the glass fibers, conveying the glass fibers to a cotton collecting machine, curing the glass fibers in a curing oven, and rolling the glass fibers; and S4, sequentially compounding and rolling the glass wool, the sound insulation cotton and the glass wool from inside to outside to obtain the NVH material. According to the preparation method and application of the automobile NVH material adopting the structure, the automobile NVH material is green and environment-friendly, and has excellent sound insulation effect and flame-retardant thermal insulation performance.

    本发明公开了一种汽车NVH材料的制备方法及应用,S1、取PET短纤维经输送带运至给棉箱,开松机将给棉箱输送的PET短纤维开松后送至梳理机梳理,梳理后的PET短纤维输送至交叉铺网机;S2、取PP颗粒倒入单色上料机,经计量泵计量后至喷丝模头处,喷出的PP纤维与S1中成网的PET短纤维混合后喷胶附布得到吸音棉,绕卷机将吸音棉收卷;S3、将玻璃纤维喷洒粘接剂后输送至集棉机,经固化炉固化后收卷;S4、由内至外依次将玻璃棉、隔音棉和玻璃棉复合收卷得到NVH材料。本发明采用上述结构的一种汽车NVH材料的制备方法及应用,绿色环保,具有优秀的隔音效果和阻燃保温性能。


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    Titel :

    Preparation method and application of automobile NVH (Noise Vibration and Harshness) material


    Weitere Titelangaben:

    一种汽车NVH材料的制备方法及应用


    Beteiligte:
    YANG FAN (Autor:in) / LI HUIPING (Autor:in)

    Erscheinungsdatum :

    2022-11-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    Controlling noise, vibration and harshness

    Alexander,D. | Kraftfahrwesen | 2003


    Noise, Vibration and Harshness (NVH)

    Barton, David C. / Fieldhouse, John D. | Springer Verlag | 2018


    Harshness in automobile

    Hicks, H.A. / Parker, G.H. | Engineering Index Backfile | 1939



    Harshness in the Automobile

    Parker, G. H. / Hicks, H. A. | SAE Technical Papers | 1939