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| 235/75R15 FRD78非对称花纹雪地轮胎的设计 |
| Design on 235/75R15 FRD78 Asymmetric Pattern Snow Tire |
| Received:November 06, 2020 Revised:November 06, 2020 |
| DOI：10.12137/j.issn.2095-5448.2021.03.0138 |
| 中文关键词: 雪地轮胎；非对称花纹；结构设计；施工设计；抗湿滑性能 |
| 英文关键词: snow tire；asymmetric pattern；structure design；construction design；wet skid resistance |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | ZHENG Tao* | Fengyuan Tire Manufacturing Co.，Ltd | 973833799@qq.com | | YANG Shuo | Bayi Rubber Co.，Ltd | | | LIU Wei | Fengyuan Tire Manufacturing Co.，Ltd | | | HUANG Dandan | Fengyuan Tire Manufacturing Co.，Ltd | |
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| 中文摘要: |
| 介绍235/75R15 FRD78非对称花纹雪地轮胎的设计。结构设计：外直径 722 mm，断面宽 241 mm，行驶面宽度 179 mm，行驶面弧度高 7.5 mm，胎圈着合直径 375 mm，胎圈着合宽度 197.8 mm，断面水平轴位置（H 1 /H 2 ） 0.977 29，胎面采用4条纵向花纹沟槽设计，花纹深度 9 mm，花纹饱和度 69.18%，花纹周节数 36。施工设计：胎面采用分层挤出，胎侧采用双复合设计，冠带层采用锦纶66帘线，1#和2#带束层使用3×0.30HT钢丝帘线，胎体采用高模量低收缩聚酯帘线，采用一次法成型机成型、液压硫化机和氮气硫化工艺硫化。成品性能试验结果表明，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设计和企业标准要求。 |
| 英文摘要: |
| The design on 235/75R15 FRD78 asymmetric pattern snow tire was described.In the structure design，the following parameters were taken：overall diameter?722 mm，cross-sectional width?241 mm，width of running surface 179 mm，height of running surface 7.5 mm，bead diameter at rim seat?375 mm，bead width at rim seat?197.8 mm，maximum width position of cross–section（H 1 /H 2 ）?0.977 29，the tread was designed with 4 longitudinal grooves，pattern depth?9 mm，block/total ratio?69.18%，and number of pattern pitches?36.In the construction design，the following processes were taken：the tread was extruded layering，the sidewall designed with double compound，using nylon 66 cord for crown belt，3×0.30HT steel cord for 1# and 2# belt，high modulus and low shrinkage polyester cord for carcass，and using one-stage building machine to build tires，hydraulic vulcanizing press and nitrogen vulcanization process to cure tires.The test results of finished tire showed that，the inflated peripheral dimention，strength，durability and high speed performance of finished tire met the requirements of corresponding design and enterprise standards. |
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