无内胎电动摩托车轮胎胎圈缺胶问题的改善

Improvement on Rubber Lack in Tubeless Electric Motorcycle Tire Bead

分析无内胎电动摩托车轮胎胎圈缺胶问题原因并提出解决方案。针对胎面定位不准、下压辊压力超标、硫化机台泄漏、胎坯落地和粘连、胎面贴偏和破边及成型胎面边缘未压实等主要原因,采取将上压辊由气缸式改为摆臂式、加长胎面托架、口型板在使用前预热至100℃以上和制定胎坯挂放及运输标准等措施,有效减少了胎圈缺胶问题,轮胎的综合修补率下降了4.8%,经济效益显著。

The causes of rubber lack in the bead of tubeless electric motorcycle tires were analyzed and the solutions were put forward.It was found that the main reasons were inaccurate tread positioning,overpressure of lower roller,leakage of curing machine,landing and adhesion of the green tire,lamination deviation and broken edges of the tread,and uncompacted edges of the formed tread.Corresponding measures were then taken:the upper pressure roller mechanism was changed from an air cylinder type to a swing arm type,the tread bracket was lengthened,the die plate was preheated to above 100℃before use,and the green tire hanging and transportation standards were formulated.After the implementation of the corrective actions,the problem of rubber lack in the bead was effectively reduced.The overall repair rate of the tire dropped by 4.8%,and the economic benefits were significant.