The invention discloses a self-repairing pneumatic tire and a manufacturing process thereof. The tire comprises a tire cover, a closed-cell polystyrene foam layer is arranged on the inner wall of thetire cover and has flexibility; the tire cover sequentially comprises a wear-resistant layer rubber layer, a cord fabric framework layer and an airtight layer rubber layer from outside to inside; andan inflating cavity is formed between the outer side of the polystyrene foam layer and the opening of the tire cover. The closed-cell polystyrene foam layer is arranged on the inner wall of an existing tire, when the tire is punctured, due to the fact that the closed-cell polystyrene foam layer has certain flexibility, after a nail is pulled out, due to the difference of internal air pressure andexternal air pressure, in the advancing process of a vehicle, the tire moves, the closed-cell polystyrene foam layer is extruded into a hole, and then the damaged position is repaired automatically.

    本发明公开了一种自修复充气轮胎及其制作工艺,包括外胎,及设置于外胎内壁上的具有柔韧性的闭孔发泡胶层,所述外胎由外到内依次包括耐磨层胶层、帘布骨架层和气密层胶层,所述发泡胶层外侧与外胎开口之间形成充气腔,本申请在现有的轮胎的内壁上设置有一层闭孔发泡胶层,车胎被扎破时,由于闭孔发泡胶层具有一定的柔韧性,当拔出钉子后,由于内外气压差,同时车行进过程中,轮胎的运动,闭孔发泡胶层被挤进孔洞中,进而自行修补破损的地方。


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    Title :

    Self-repairing pneumatic tire and manufacturing process thereof


    Additional title:

    一种自修复充气轮胎及其制作工艺


    Contributors:

    Publication date :

    2020-04-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand



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