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| 325/95R24 22PR无内胎全钢载重子午线轮胎的设计 |
| Design on 325/95R24 22PR Tubeless All-steel Truck and Bus Radial Tire |
| Received:November 07, 2018 Revised:November 07, 2018 |
| DOI：10.12137/j.issn.2095-5448.2019.04.0211 |
| 中文关键词: 全钢载重子午线轮胎；结构设计；施工设计 |
| 英文关键词: all-steel truck and bus radial tire；structure design；construction design |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | Fan Ningning* | Yinchuan Giti Tire Co.,Ltd | 5836786@QQ.com |
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| 中文摘要: |
| 介绍325/95R24 22PR无内胎全钢载重子午线轮胎的设计。结构设计：外直径 1 224 mm，断面宽 320 mm，行驶面宽度 242 mm，行驶面弧度高 9 mm，胎圈着合直径 609 mm，胎圈着合宽度 230 mm，断面水平轴位置（H1/H2） 1.074，胎面采用3条纵向花纹沟槽设计，并用窄的横向沟槽进行切割，花纹深度 18.5 mm，花纹周节数 66，花纹饱和度 75.5%。施工设计：胎面采用两方两块结构，1#和2#带束层采用3＋8×0.33HT钢丝帘线，3#带束层采用5×0.35HI钢丝帘线，0°带束层采用3×7×0.20HE钢丝帘线，胎体采用0.25＋6＋12×0.225HT钢丝帘线。采用一次法成型机成型，蒸锅硫化机硫化。成品性能试验结果表明：成品轮胎的充气外缘尺寸、强度性能、耐久性能和高速性能均达到相应国家和企业标准要求。 |
| 英文摘要: |
| The design on 325/95R24 22PR tubeless all-steel truck and bus radial tire was described.In structure design，the following parameters were taken：overall diameter 1 224 mm，cross-sectional width 320 mm，width of running surface 242 mm，arc height of running surface 9 mm，bead diameter at rim seat 609 mm，bead width at rim seat 230 mm，maximum width position of cross-section（H1/H2） 1.074，three longitudinal grooves with narrow lateral grooves as the main tread pattern，pattern depth 18.5 mm，number of pattern pitches 66，and block/total ratio 75.5%.In construction design，the following processes were taken：two-formula and two-piece structure for tread，3＋8×0.33HT steel cord for 1# and 2# belts，5×0.35HI steel cord for 3# belt，3×7×0.20HE steel cord for 0° belt，0.25＋6＋12×0.225HT steel cord for carcass ply，and using one stage building machine to build tire and steam press to cure tire.It was confirmed by the tests of the finished tire that，the inflated peripheral dimension，strength，endurance and high speed performance met the requirements of corresonding standards. |
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