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| 435/50R19.5无内胎低断面全钢载重子午线轮胎的设计 |
| Design on 435/50R19.5 Tubeless Low Profile Truck and Bus Radial Tire |
| Received:May 17, 2022 Revised:May 17, 2022 |
| DOI：10.12135/j.issn.1006-8171.2023.04.0203 |
| 中文关键词: 全钢载重子午线轮胎；无内胎；低断面；结构设计；施工设计；成品轮胎性能 |
| 英文关键词: truck and bus radial tire；tubeless；low profile；structure design；construction design；finished tire performance |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | hou xu guo* | sai lun group co.,ltd | xuguo.hou@sailuntire.com | | zhu shan ping | sai lun group co.,ltd | | | zhang heng | sai lun group co.,ltd | |
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| 中文摘要: |
| 介绍435/50R19.5无内胎低断面全钢载重子午线轮胎的设计。结构设计：外直径 932 mm，断面宽 448 mm，行驶面宽度 375 mm，行驶面弧度高 10.3 mm，胎圈着合直径 493.5 mm，胎圈着合宽度 381 mm，断面水平轴位置（H1/H2） 0.822，胎面采用6条周向花纹沟设计，花纹深度 13 mm，花纹饱和度 76.1%，花纹周节数 60。施工设计：胎面采用两层全分层贯通结构，胎体采用3＋9×0.22＋0.15钢丝帘线，采用4层带束层结构，过渡层采用3×0.20＋6×0.35HT钢丝帘线，工作层采用3＋8×0.33ST钢丝帘线，保护层采用3×0.35HI钢丝帘线，采用两鼓胶囊成型机成型、热板式液压硫化机硫化轮胎。成品轮胎室内试验结果表明，轮胎充气外缘尺寸、强度性能和耐久性能均达到国家标准要求，高速性能达到设计要求。 |
| 英文摘要: |
| The design on 435/50R19.5 tubeless low profile truck and bus radial tire was introduced.In the structure design，the following parameters were taken：overall diameter 932 mm，corss-section width 448 mm，width of the running surface 375 mm，arc height of running surface 10.3 mm，bead diameter at rim seat 493.5 mm，bead width at rim seat 381 mm，maximum width position of cross-section
（H1/H2） 0.822，using 6 circumferential grooves design for tread，pattern depth 13 mm，block/total ratio 76.1%，and number of pattern pitches 60.In the construction design，the following processes were taken：two-layer full layered through structure for tread，3＋9×0.22＋0.15 steel cord for carcass，adopted 4 layers belt structure，3×0.20＋6×0.35HT steel cord for transition layer，3＋8×0.33ST steel cord for working layer，3×0.35HI steel cord for protective layer，using two drum capsule building machine to build tire and hot plate hydraulic vulcanization press to cure tire.The indoor test results of the finished tire showed that the inflated peripheral dimension，strength performance and durability met the national standards，and the high-speed performance met the design requirements. |
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