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| 385/55R22.5无内胎全钢载重子午线轮胎的轻量化设计 |
| Lightweight Design of 385/55R22.5 Tubeless All-steel Truck and Bus Radial Tire |
| Received:July 27, 2018 Revised:July 27, 2018 |
| DOI：10.12137/j.issn.2095-5448.2019.03.0151 |
| 中文关键词: 轻量化；全钢载重子午线轮胎；结构设计；施工设计 |
| 英文关键词: lightweight；all-steel truck and bus radial tire；structure design；construction design |
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| 中文摘要: |
| 介绍385/55R22.5无内胎全钢载重子午线轮胎的轻量化设计。结构设计：外直径?996 mm，断面宽?386 mm，胎圈着合直径?571.5 mm，胎圈着合宽度?336 mm，断面水平轴位置（H1/H2）?0.93，行驶面弧度高?9.5 mm，行驶面宽度?325 mm，胎面花纹采用5道纵向条形花纹沟和斜向花纹槽设计。施工设计：胎冠采用双复合挤出，胎体采用3×0.24/9×0.225CCST钢丝帘线，带束层采用4层带束层结构，1#带束层采用3＋8×0.33ST钢丝帘线，2#和3#带束层采用3×0.20＋6×0.35HT钢丝帘线，4#带束层采用5×0.35HI钢丝帘线，成型采用一次法成型机成型，硫化采用蒸锅式双模硫化机。轻量化设计轮胎质量减小3.12 kg，成品轮胎充气外缘尺寸、强度性能和耐久性能均满足设计要求。 |
| 英文摘要: |
| Lightweight design of 385/55R22.5 tubeless all-steel truck and bus radial tire was Introduced.In structure design，the following parameters were taken：overall diameter?996 mm，cross-sectional width?386 mm，bead diameter at rim seat?571.5 mm，bead width at rim seat?336 mm，maximum width position of cross-section（H1/H2）?0.93，arc height of running surface?9.5 mm，width of running surface?325 mm，and the tread pattern was designed with 5 longitudinal strip grooves and diagonal grooves.In construction design，the following processes were taken：double composite extrusion for crown，3×0.24/9×0.225CCST steel cord for carcass ply，using four-layer belts，3＋8×0.33ST steel cord for 1# belt，3×0.20＋6×0.35HT steel cord for 2# and 3# belt，5×0.35HI steel cord for 4# belt，using one-stage building machine to build tire and steamer double-mold press to cure tire.The weight of tire was reduced by 3.12 kg，and the inflated peripheral dimension，strength and endurance performance of the finished tire met the design requirements. |
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