全钢载重子午线轮胎胎侧蛇形弯曲原因分析及解决措施

Causes Analysis and Solutions of Snakelike Bend on Sidewall of All-steel Truck and Bus Radial Tire

对全钢载重子午线轮胎胎侧蛇形弯曲的产生原因进行分析,并提出相应解决措施。通过采取胎侧在恒温恒湿环境下停放、调整挤出机温度匹配性、合理设定混炼胶门尼粘度标准、优化耐磨胶配方及改进胎侧终口型开型比等措施,有效解决了胎侧蛇形弯曲问题,降低了胎侧部件返工率,使成品轮胎胎圈类质量缺陷的理赔率由0.66%下降至0.21%。

The causes of snakelike bend on the sidewall of all-steel truck and bus radial tires were analyzed,and the corresponding measures were proposed.By adopting measures such as parking the sidewall in an environment with controlled and constant temperature and humidity,adjusting the temperature matching of the extrusion machine,reasonably setting the Mooney viscosity of the compound,optimizing the wear-resistant compound formula and improving the final die opening ratio for the sidewall extrusion,the problem of snakelike bend on the sidewall was effectively solved,the rework rate of sidewall components was reduced,and the claim rate for quality defects in the finished tire beads decreased from 0.66%to 0.21%.