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| 215/70R17.5 14PR全钢载重子午线轮胎的设计 |
| Design on 215/70R17.5 14PR Truck and Bus Radial Tire |
| Received:November 03, 2017 Revised:November 07, 2017 |
| DOI：10.12135/j.issn.1006-8171.2019.03.0140 |
| 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: truck and bus radial tire；structure design；construction design |
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| 中文摘要: |
| 介绍215/70R17.5 14PR全钢载重子午线轮胎的设计。结构设计：外直径 770 mm，断面宽 217 mm，行驶面宽度 175 mm，行驶面弧度高 9.9 mm，胎圈着合直径 442.5 mm，胎圈着合宽度 170 mm，断面水平轴位置（H1/H2） 1.1，胎面采用自锁型Z-Z刀槽花纹，变节距设计，花纹深度 13.5 mm，花纹饱和度 80%，花纹周节数 61。施工设计：胎面采用热、冷喂料双复合挤出，采用4层带束层结构，1#带束层采用3×0.2＋6×0.35HT钢丝帘线，2#和3#带束层采用3×0.2＋6×0.35HT钢丝帘线，4#带束层采用5×0.30HI钢丝帘线，胎体采用3＋9×0.22＋0.15HT钢丝帘线，采用三鼓一次法成型机成型、双模B型热板硫化机硫化。成品轮胎性能试验结果表明，轮胎的充气外缘尺寸、强度性能和耐久性能均符合设计及国家标准和企业标准的要求。 |
| 英文摘要: |
| The design on 215/70R17.5 14PR truck and bus radial tire was described.In the structure design，the following parameters were taken：overall diameter?770 mm，cross-sectional width?217 mm，width of running surface 175 mm，arc height of running surface 9.9 mm，bead diameter at rim seat?442.5 mm，bead width at rim seat?170 mm，maximum width position of cross–section（H1/H2）?1.1，self locking Z-Z siping tread pattern，variable pattern pitch，pattern depth?13.5 mm，block/total ratio?80%，and number of pattern pitches?61.In the construction design，the following processes were taken：co-extrusion of hot and cold feedings tread，4 layers belts structure，3×0.2＋6×0.35HT steel cord for 1# belt，3×0.2＋6×0.35HT steel cord for 2#和3# belt，5×0.30HI steel cord for 4# belt，3＋9×0.22＋0.15HT steel cord for carcass，using three-drum single-stage building machine to build tires，and double-mold B-style hot plate press to cure tires．It was confirmed by the finished tire test that，the inflated peripheral dimension，strength and endurance met the requirements of design，national standards and enterprise standards. |
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