| 何昌伟,马向前,王胜利.12.00R20 20PR矿用全钢载重子午线轮胎的设计[J].橡胶科技,2024,22(11):0650-0653. |
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| 12.00R20 20PR矿用全钢载重子午线轮胎的设计 |
| Design of 12.00R20 20PR All-steel Truck and Bus Radial Tire for Mining |
| 投稿时间：2023-08-25 修订日期：2023-08-25 |
| DOI：10.12137/j.issn.2095-5448.2024.11.0650 |
| 中文关键词: 矿用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 for mining structure design construction design |
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| 中文摘要: |
| 介绍12.00R20-20PR矿用全钢载重汽车子午线轮胎的设计。外直径 1 134 mm，断面宽 310 mm，行驶面宽度 250 mm，行驶面弧度高 8.7 mm，胎圈着合宽度 230 mm，胎圈着合直径 512 mm，断面水平轴位置（H1/H2） 1.016，胎面花纹采用横向贯通式宽花纹沟设计，花纹块间增设加强筋，花纹深度 25 mm，花纹饱和度 72%，花纹周节数 31。结构设计：胎面采用双复合结构，胎体采用3＋9＋15×0.225ST钢丝帘线，带束层采用4层带束层＋0°带束层结构，其中1#和2#带束层采用3＋8×0.33HT钢丝帘线，3#和4#带束层采用1×5×0.30HI钢丝帘线，0°带束层宽度为40 mm，采用三鼓成型机成型，采用蒸锅式硫化机硫化。成品性能试验结果表明，成品轮胎的充气外缘尺寸、强度性能和耐久性能均达到国家标准及相应设计要求。 |
| 英文摘要: |
| Design of 12.00R20 20PR all-steel truck and bus radial tire for mining was introduced.In the structure design，the following parameters were taken：overall diameter 1 134 mm，cross-section width 310 mm，width of running surface 250 mm，arc height of running surface 8.7 mm，bead width at rim seat 230 mm，bead diameter at rim seat 512 mm，maximum width position of cross section（H1/H2） 1.016，using a transverse through type wide pattern groove for tread pattern，and reinforcement ribs were added between the pattern blocks，pattern depth 25 mm，block/total ratio 72%，and number of pattern pitches 31.In the construction design，the following processes were taken：using double compound structure for tread，using 3＋9＋15×0.225ST steel cord for carcass，using 4 layers belt＋0° belt structure for belt，3＋8×0.33HT steel cord for 1# and 2# belt，1×5×0.30HI steel cord for and 3# and 4# belt，40 mm of 0° belt width，using three-drum building machine to build tire and steamer curing press to cure tire.The test results of finished tire performance showed that the inflation peripheral dimensions，strength performance and durability of the finished tire met the requirements of national standard and corresponding design. |
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