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| 7.50－16 8PR R-2农业轮胎的设计 |
| Design on 7.50－16 8PR R-2 Agriculture Tire |
| Received:October 10, 2018 Revised:October 10, 2018 |
| DOI：10.12135/j.issn.1006-8171.2019.12.0725 |
| 中文关键词: 农业轮胎；结构设计；施工设计 |
| 英文关键词: agriculture tire；structure design；construction design |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | Postcode | | SUI Anquan* | Xuzhou Xulun Rubber Co.，Ltd | 100143 | | PENG Guanghai | Xuzhou Xulun Rubber Co.，Ltd | | | SUN Lei | Xuzhou Xulun Rubber Co.，Ltd | | | CHEN Sen | Xuzhou Xulun Rubber Co.，Ltd | |
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| 中文摘要: |
| 介绍7.50－16 8PR R-2农业轮胎的设计。结构设计：外直径 822 mm，断面宽 197 mm，行驶面宽度 185 mm，行驶面弧度高 19 mm，胎圈着合直径 405 mm，胎圈着合宽度 140 mm，断面水平轴位置（ H 1 / H 2 ） 0.62，胎面采用高花纹块，花纹深度 45 mm，花纹饱和度 21.1%，花纹周节数 17。施工设计：胎面采用两方四块结构，缓冲层采用2层930dtex/2锦纶6浸胶帘布，胎体采用4层高强度1400dtex/2锦纶6浸胶帘布（2V 1 ＋2V 2 ），采用LCX-2B成型机成型、立式硫化罐硫化。成品轮胎试验结果表明，成品轮胎的充气外缘尺寸和物理性能分别满足设计和国家标准要求。 |
| 英文摘要: |
| The design on 7.50－16 8PR R-2 agriculture tire was described.In the structure design，the following parameters were taken：overall diameter?822 mm，cross-sectional width?197 mm，width of running surface 185 mm，arc height of running surface 19 mm，bead diameter at rim seat?405 mm，bead width at rim seat?140 mm，maximum width position of cross–section（ H 1 / H 2 ）?0.62，using high height tread pattern block，pattern depth?45 mm，block/total ratio?21.1%，and number of pattern pitches?17.In the construction design，the following processes were taken：using two-fomula and four-piece tread，using 2 layers of 930dtex/2 nylon 6 dipped cord for breake，4 layers of high strength 1400dtex/2 nylon 6（2V 1 ＋2V 2 ） dipped cord for carcass，using LCX-2B building machine to build tire，and vertical vulcanizer to cure tire．It was confirmed by the finished tire test that，the inflated peripheral dimension and physical properties met the corresponding requirment of design and national standards respectively. |
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