The invention relates to the technical field of tire technology improvement, and discloses a method for improving unevenness of a tire. The method comprises the following operation steps of S1, selecting a sample piece; S2, adjusting the temperature of a drying oven; S3, carrying out thermal cycle treatment; S4, measuring and calculating the free shrinkage rate; S5, carrying out a tensile test; S6, calculating the elongation rate under constant load. The method for improving the unevenness of the tire is reasonable in design, and is simple to use and convenient to operate; the unevenness of the tire is improved by controlling the performance of the cord threads under the high-temperature vulcanization condition, when the tire is inflated, the tire body cord threads of the tire are in an expansion stress state, the size stability of the tire body cord threads is high, and the tire body cord threads are not prone to deformation. According to the method, while the conventional detection size stability of the tire body cord threads is ensured, it is ensured that the cord threads keep higher size stability under normal-temperature vulcanization and high-temperature vulcanization by providing a high-temperature free shrinkage detection and control method for the tire body cord threads.

    本发明涉及轮胎技术改善技术领域,公开了一种改善轮胎凹凸不良的方法,包括如下操作步骤:步骤S1:选取样件;步骤S2:调节烘箱温度;步骤S3:进行热循环处理;步骤S4:测量并计算自由收缩率;步骤S5:拉伸测试;步骤S6:计算定负荷伸长率,该改善轮胎凹凸不良的方法设计合理,使用方法简单便于操作,通过对帘线在硫化高温条件下的性能管控,从而改善轮胎凹凸度不良,当轮胎充气时,轮胎胎体帘线处于膨胀受力状态,胎体帘线尺寸稳定性高,轮胎不易出现凹凸问题,本发明在确保胎体帘线常规检测尺寸稳定性能的同时,通过提供一种胎体帘线高温自由收缩检测及管控方法,确保胎体帘线在常温及高温硫化下,均保持较高的尺寸稳定性。


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    Titel :

    Method for improving unevenness of tire


    Weitere Titelangaben:

    一种改善轮胎凹凸不良的方法


    Beteiligte:
    WANG FENG (Autor:in) / TENG LEI (Autor:in) / CHEN DONG (Autor:in) / ZHU LIYAN (Autor:in) / CHEN XUEMEI (Autor:in) / LU YANHONG (Autor:in) / WANG ZHIJUN (Autor:in)

    Erscheinungsdatum :

    2020-11-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60C VEHICLE TYRES , Fahrzeugreifen



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