The invention discloses a high-extension large-stretching automobile engine hood heat insulation pad and a preparation method thereof, and belongs to the technical field of engine accessories, the high-extension large-stretching automobile engine hood heat insulation pad comprises a first non-woven fabric layer, a thermosetting cotton layer, a glass wool layer and a second non-woven fabric layer which are sequentially stacked from top to bottom, and the thermosetting cotton layer and the glass wool layer form a middle layer of the heat insulation pad; a plurality of pieces of reinforcing cotton are arranged between the first non-woven fabric layer and the second non-woven fabric layer and are used for filling the extension part of the middle layer of the heat insulation pad when the first non-woven fabric layer and the second non-woven fabric layer are stretched. In the preparation process of the heat insulation pad, the phenomena of tearing, breaking and the like at a high-extension and large-stretching part are avoided, the heat insulation pad prepared by the method has the effects of flat surface, smooth transition surface, no tearing and good forming stability, the reject ratio of products is greatly reduced, and the total preparation cost of the products is reduced.

    本发明公开了一种高延展大拉伸的汽车发动机罩隔热垫及其制备方法,发动机配件技术领域,包括自上向下依次层叠的第一无纺布层、热固型棉层、玻璃棉层和第二无纺布层,热固型棉层和玻璃棉层构成隔热垫的中间层,第一无纺布层和第二无纺布层之间设置有若干片补强棉,用于填充拉伸第一无纺布层和第二无纺布层时的上述隔热垫中间层的延展处。本发明提供的隔热垫在制备过程中高延展大拉伸部位不会产生拉撕折断等现象,按照本发明提供的方法所制备的隔热垫具备表面平整、过渡面光滑无拉撕、成型稳定性好的效果,产品不良率大幅下降,降低了产品的制备总成本。


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    Titel :

    High-extension large-stretching automobile engine hood heat insulation pad and preparation method thereof


    Weitere Titelangaben:

    一种高延展大拉伸的汽车发动机罩隔热垫及其制备方法


    Beteiligte:
    SHI QUN (Autor:in) / LI QIANG (Autor:in) / CHEN CHENG (Autor:in)

    Erscheinungsdatum :

    2021-06-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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