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| 12R22.5 18PR GX58无内胎全钢载重子午线轮胎的设计 |
| Design of 12R22. 5 18PR GX58 Tubeless All-steel Truck and Bus Radial Tire |
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| DOI： |
| 中文关键词: 全钢载重子午线轮胎；无内胎；结构设计；施工设计 |
| 英文关键词: all-steel truck and bus radial tire；tubeless；structure design；construction design |
| 基金项目: |
| 中图分类号:TQ336.1 |
| Author Name | Affiliation | | ZHAO Haibin | Tianjin University of Science and Technology；Yinchuan GITI Tire Co. ，Ltd | | WU Suhua | Tianjin University of Science and Technology |
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| 中文摘要: |
| 介绍12R22.5 18PR GX58无内胎全钢载重子午线轮胎的设计。结构设计：外直径 1 094 mm，断面宽度 295 mm，行驶面宽度 250 mm，行驶面弧度高 8.8 mm，胎圈着合直径 569.5 mm，胎圈着合宽度 254 mm，断面水平轴位置（H1/H2） 0.838，花纹饱和度 72.68%，采用GX58型中心对称块状花纹。施工设计：胎面采用两方两块结构，胎体采用1层0. 25＋6＋12×0. 225HT钢丝帘线，带束层采用2层3＋8×0. 33HT、1层5×0.35HI和1层3×7×0.20HE钢丝帘线，成型采用三鼓一次法成型机，硫化采用B型1 615 mm（65英寸）硫化机。成品轮胎的充气外缘尺寸、强度性能、耐久性能和高速性能达到设计或国家标准要求。 |
| 英文摘要: |
| This paper introduced the design of 12R22. 5 18PR GX58 tubeless all-steel truck and bus radial（TBR） tire. In the structure design，the following parameters were taken：overall diameter 1 094 mm，cross-sectional width 295 mm，width of running surface 250 mm，arc height of running surface 8. 8 mm，bead diameter at rim seat 569. 5 mm，bead width at rim seat 254 mm，maximum width position of cross-section（H1/H2） 0. 838，pattern block/total ratio 72. 68%，and with GX58 center symmetric block pattern. In the construction design，the following processes were taken：two- piece and two-formula tread，1 layer of 0. 25＋6＋12×0. 225HT steel cord for carcass ply，2 layers of 3＋8×0. 33HT steel cord，1 layer of 5×0. 35HI steel cord and 1 layer of 3×7×0. 20HE steel cord for belt，using single stage three-drum forming machine to build tires，and 1 615 mm（65 inches） type B vulcanization machine to cure tires. The inflated peripheral dimension，strength property，endurance performance and high speed performance of the finished tire met the requirements of the design and national standards. |
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