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| 轻型载重子午线轮胎胎肩损坏改善方法研究 |
| Research on Improvement Methods of Shoulder Damage of Light Truck and Bus Radial Tire |
| Received:June 24, 2019 Revised:June 24, 2019 |
| DOI：10.12135/j.issn.1006-8171.2020.06.0367 |
| 中文关键词: 轻型载重子午线轮胎；结构设计；耐久性能；胎肩损坏 |
| 英文关键词: light truck and bus radial tire；structural design；durability；shoulder damage |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | SONG Li* | Zhongce Rubber Group Co.，Ltd | 1090635687@qq.com | | QIN Yanfen | Zhongce Rubber Group Co.，Ltd | | | WANG Shihao | Zhongce Rubber Group Co.，Ltd | |
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| 中文摘要: |
| 研究轻型载重子午线轮胎胎肩损坏改善方法，并通过成品轮胎耐久性试验和静态压力分布试验进行验证。结果表明：通过调整胎面厚度和带束层帘线种类以改善胎面压力分布、增加冠带层缠绕层数和提高带束层间粘合力以增大带束层间的抗剪切应力、调整带束层宽度和减小三角胶长度以减小带束层端点应力以及增大基部胶厚度以降低胎肩生热和提高胎肩散热能力等方法，可以不同程度地提高轻型载重子午线轮胎胎肩的耐久性能。 |
| 英文摘要: |
| The improvement methods of shoulder damage of light truck and bus radial tire was studied and verified by the durability test and static pressure distribution test of finished tire.The results showed that，by adjusting the thickness of tread and the type of belt cords to improve the pressure distribution of tread，increasing the number of winding layers of crown belt layer and increasing the adhesive force between belt plies to increase the shear stress resistance between belt plies，adjusting the width of belt and reducing the length of apex to reduce the stress at the end of belt and increasing the thickness of base compound to reduce the heat generation of shoulder and improve the heat dissipation capacity of shoulder，the shoulder durability of light truck and bus radial tire could be improved to different extent. |
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