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| 12R22.5 18PR BY711高速全钢载重子午线轮胎的设计 |
| Design on 12R22.5 18PR BY711 High-speed Truck and Bus Radial Tire |
| Received:March 10, 2020 Revised:March 13, 2020 |
| DOI：10.12137/j.issn.2095-5448.2020.06.0340 |
| 中文关键词: 全钢载重子午线轮胎；高速；结构设计；施工设计；耐久性能 |
| 英文关键词: truck and bus radial tire；high-speed；structure design；construction design；endurance performance |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | ZHANG Sixi* | Bayi Rubber Co.，Ltd | 18269287637@163.com | | ZHOU Qian | Bayi Rubber Co.，Ltd | | | LI Yi | Bayi Rubber Co.，Ltd | | | YANG Li | Bayi Rubber Co.，Ltd | | | SHI Liran | Bayi Rubber Co.，Ltd | | | SUN Kai | Bayi Rubber Co.，Ltd | |
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| 中文摘要: |
| 介绍12R22.5 18PR BY711高速全钢载重子午线轮胎的设计。结构设计：外直径?1 079 mm，断面宽?294 mm，行驶面宽度?230 mm，行驶面弧度高?7 mm，胎圈着合直径?569.5 mm ，胎圈着合宽度?230 mm， 断面水平轴位置（H1/H2）?1.04，采用纵向直沟花纹变节距设计，花纹深度?17 mm，花纹饱和度?74.85%，花纹周节数?94。施工设计：胎面采用全分层结构，胎体采用3×0.24＋9×0.225CCHT钢丝帘布，带束层结构采用3层带束层加0°带束层结构，1#和2#带束层采用2＋7×0.30ST钢丝帘线，3#带束层采用5×0.35HI钢丝帘线，0°带束层采用3×7×0.20HE钢丝帘线；成型采用一次法三鼓成型机成型，硫化双模硫化机氮气工艺硫化。成品轮胎试验结果表明，成品轮胎的充气外缘尺寸、强度性能、耐久性能均满足设计和国家标准。 |
| 英文摘要: |
| 12R22.5 18PR BY711 high-speed truck and bus radial tire was introduced.In structure design，the following parameters were taken：overall diameter 1 079 mm，cross-sectional width 294 mm，width of running surface 230 mm，arc height of running surface 7 mm，bead diameter at rim seat 569.5 mm，bead width at rim seat 230 mm，maximum width position of cross-section（H1/H2） 1.04，longitudinal straight groove pattern variable pitch，pattern depth 17 mm，block/total ratio 74.85%，and number of pattern pitches 94.In construction design，the following processes were taken：full layered tread，3×0.24＋9×0.225CCHT steel cord for carcass，3 layers belt and 0° belt.2＋7×0.30ST steel cord for 1# and 2# belt，5×0.35HI steel cord for 3# belt，3×7×0.20HE steel cord for 0° belt，using three-drum building machine to build tire and nitrogen process of double mold vulcanizer to cure tire.It was confirmed by the finished tire test that，the inflated peripheral dimension，strength performance and endurance performance reached the requirements of design and national standards. |
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