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介绍2+7×0.30ST钢丝帘线的结构和性能,并与4+6×0.30HT钢丝帘线进行对比。结果表明,与4+6×0.30HT钢丝帘线相比,2+7×0.30ST钢丝帘线强度高、线密度小,破断力/线密度和破断力/帘线直径比值较高,有利于提高轮胎的承载能力和安全性能,其椭圆形结构具有优良的渗胶性能,并可显著减小帘布质量,满足轮胎轻量化的要求。
The structure and performance of 2 + 7 × 0.30ST steel cord are introduced and compared with 4 + 6 × 0.30HT steel cord. The results show that, compared with 4 + 6 × 0.30HT steel cord, 2 + 7 × 0.30ST steel cord with high strength, low linear density, high breaking strength / linear density and breaking force / cord diameter ratio is conducive to Improve the carrying capacity and safety performance of the tire, the oval structure has excellent seepage performance, and can significantly reduce the quality of the carcass to meet the requirements of light weight of the tire.