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| 12R22.5全轮位载重子午线轮胎的设计 |
| Design of 12R22.5 Full-Wheel Position Truck and Bus Radial Tire |
| Received:February 19, 2025 Revised:February 19, 2025 |
| DOI： |
| 中文关键词: 全轮位轮胎；载重子午线轮胎；结构设计；施工设计；成品轮胎性能 |
| 英文关键词: |
| 基金项目: |
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| Author Name | Affiliation | E-mail | | LYU Wei* | Prinx Chengshan（Shandong） Tire Co.，Ltd | wlv@prinxchengshan.com | | SUN Zongtao | Prinx Chengshan（Shandong） Tire Co.，Ltd | | | CHE Mingming | Prinx Chengshan（Shandong） Tire Co.，Ltd | | | QU Jia yu | Prinx Chengshan（Shandong） Tire Co.，Ltd | | | JU Hao | Prinx Chengshan（Shandong） Tire Co.，Ltd | | | FENG Lin | Prinx Chengshan（Shandong） Tire Co.，Ltd | | | WANG Xinchao | Prinx Chengshan（Shandong） Tire Co.，Ltd | |
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| 中文摘要: |
| 介绍12R22.5全轮位载重子午线轮胎的设计。结构设计：外直径 1 083 mm，断面宽 296 mm，行驶面宽度 236 mm，行驶面弧度高 5.2 mm，胎圈着合直径 571 mm，胎圈着合宽度 244 mm，断面水平轴位置（H/1/H/2) 0.954，胎面采用横向加深刀槽花纹，花纹深度 20 mm，花纹饱和度 82%，花纹周节数 76。施工设计：胎面采用三复合挤出工艺，采用4层带束层结构，2# 和3# 带束层使用3＋8×0.33HT钢丝帘线，胎体使用3×0.24/9×0.225CCHT钢丝帘线，钢丝圈使用Φ1.83 mm镀青铜回火胎圈钢丝，采用三鼓一次法成型机成型、双模定型硫化机硫化。成品轮胎的性能试验结果表明，轮胎的充气外缘尺寸、强度性能、耐久性能和速度性能均符合相应设计以及企业标准和国家标准要求。 |
| 英文摘要: |
| The design of 12R22.5 full-wheel position truck and bus radial tire was described.In the structure design，the following parameters were taken：overall diameter 1 083 mm，cross-sectional width?296 mm，width of running surface 236 mm，arc height of running surface 5.2 mm，bead diameter at rim seat?571 mm，bead width at rim seat?244 mm，maximum width position of cross–section（H/1/H/2
）?0.954，using a transverse deepened knife grooved pattern for tread，pattern depth?20 mm，
block/total ratio?82%，and number of pattern pitches?76.In the construction design，the following processes were taken：using a three composite extrusion process for tread，using a 4-layer belt structure and 3＋8×0.33HT steel cord for 2# and 3# belts，using 3×0.24/9×0.225CCHT steel cord for carcass，using Φ1.83 mm bronze plated tempered bead steel for bead wire，using a three-drum one-stage building machine to build tires and a dual-mode vulcanizing press to cure tires.The test results of the finished tire performance showed that，the inflated peripheral dimention，strength，durability and speed performance of the tire all met the requirements of corresponding design，enterprise and national standards. |
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