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| 冷却工艺对轮胎外缘尺寸及性能的影响 |
| Effect of Cooling Process on Peripheral Dimension and Performances of Tire |
| Received:April 26, 2023 Revised:April 26, 2023 |
| DOI：10.12135/j.issn.1006-8171.2024.05.0303 |
| 中文关键词: 轮胎；冷却工艺；外缘尺寸；硫化后充气；稳定性 |
| 英文关键词: tire；cooling process；peripheral dimension；post-cure inflation；stability |
| 基金项目: |
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| Author Name | Affiliation | E-mail | | FANG Houyong* | Zhongce Rubber Group Co.,Ltd | fanghouyong@163.com | | ZHANG Liang | Zhongce Rubber Group Co.,Ltd | | | WANG Fangqi | Zhongce Rubber Group Co.,Ltd | | | LU Yangdong | Zhongce Rubber Group Co.,Ltd | |
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| 中文摘要: |
| 研究冷却工艺对轮胎外缘尺寸及性能的影响。结果表明：自然冷却速率高于硫化后充气冷却速率，但硫化后充气冷却轮胎的尺寸均匀性、径向刚性和耐久性能均较高；延长硫化后充气时间、降低硫化后充气终点轮胎温度，有助于降低轮胎尺寸收缩率；单根帘线的张力需大于初始冷却温度下骨架材料的热收缩应力，随着硫化后充气压力提高，轮胎外缘尺寸呈增大趋势；硫化后充气轮辋宽度对轮胎的外缘尺寸影响较小；随着出模时间的延长，轮胎外缘尺寸减小，需要控制出模时间。 |
| 英文摘要: |
| The effect of cooling process on the peripheral dimension and performances of tire was studied.The results showed that the natural cooling rate was higher than that of post-cure inflation cooling，but the size uniformity，radial stiffness，and durability of the post-cure inflation cooled tire were higher. Extending the post-cure inflation time and reducing the tire temperature at the endpoint of post-cure inflation could help reduce the tire size shrinkage rate.The tension of a single cord needed to be greater than the thermal shrinkage stress of the skeleton material at the initial cooling temperature，as the post-cure inflation pressure increased，the peripheral dimension of the tire showed an increasing trend.The width of the post-cure inflation rim had little effect on the peripheral dimension of tire.As the demolding time prolonged，the peripheral dimension of tire decreased，and it was necessary to control the demolding time. |
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