半钢子午线轮胎胎里径向裂口的原因分析及解决措施

Cause Analysis and Solutions of Radial Cracks in Inner Surface of Steel-belted Radial Tire

分析半钢子午线轮胎胎里径向裂口的原因并提出相应的解决措施。帘布电子辐照预硫化辐照剂量不足、帘线伸张率大、部件接头不良、肩部材料过渡不良、喷涂剂或隔离剂使用不当、硫化胶囊选取不合适、硫化参数设定不合理、胶料门尼粘度低等均会导致轮胎胎里径向裂口。通过合理选取工艺参数、加强工艺管理、严格执行技术标准、优化结构设计等措施,可有效避免轮胎胎里径向裂口,从而降低轮胎废品率。

The causes of radial cracks in the inner surface of steel-belted radial tire were analyzed,and corresponding solutions were proposed.It was found that the main causes were as follows:insufficient irradiation dose for pre-vulcanization of cord,high cord elongation,poor component joints,poor shoulder material transition,improper use of spraying agent or release agent,improper selection of vulcanization capsule,unreasonable setting of vulcanization parameters and low Mooney viscosity of the compound.Measures such as reasonable selection of process parameters,strengthening of process management,strict implementation of technical standards,and optimization of structure design could effectively avoid the radial cracks in the inner surface and reduce the reject rate.