3+9+15×0.25+0.15ST超高强度钢丝帘线的开发

Development of 3+9+15×0.25+0.15ST Super High Strength Steel Cord

介绍3+9+15×0.25+0.15ST钢丝帘线的结构和性能,并与7×7×0.22+0.15HT钢丝帘线进行对比。与7×7×0.22+0.15HT钢丝帘线相比,3+9+15×0.25+0.15ST钢丝帘线的线密度较小,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,其紧密型结构具有良好的渗胶性能,并可显著减小帘布质量,降低成本。

The structure and properties of 3＋99＋915 × 0.25-90. 15ST steel cord were introduced, and compared with 7 × 7 × 0.22-90.15 HT steel cord. The results showed that, compared with 7 ×7×0. 22-90.15HT steel cord, the linear density of 3＋9＋915 ×0. 25-90.15ST steel cord was lower, and the ratios of breaking force/linear density and breaking force/cord diameter were higher,which was in favor of improving the carrying capacity and safety performance of tire. 3＋9 15 × 0. 25＋0. 15ST steel cord possessed good rubber penetrability because of its tight structure,and the cord weight and product cost could be reduced obviously.