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295/25R28超低断面轿车子午线轮胎的设计
Design on 295/25R28 Ultra-low Section Passenger Car Radial Tire
Received:May 06, 2020  Revised:May 06, 2020
DOI：10.12135/j.issn.1006-8171.2020.07.0409
中文关键词: 轿车子午线轮胎；超低断面轮胎；结构设计；施工设计；成品性能
英文关键词: passenger car radial tire；ultra-low section tire；structure design；construction design；tire performance
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Author NameAffiliationE-mail
ZHOUBIN* Wanli Tire Co.,Ltd.,Guangzhou,Guangdong 87519068@qq.com 
LI Peizhan Wanli Tire Co.,Ltd.,Guangzhou,Guangdong  
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中文摘要:
      介绍295/25R28超低断面轿车子午线轮胎的设计。结构设计：外直径　850 mm，断面宽　310 mm，行驶面宽度　260 mm，行驶面弧度高　8 mm，胎圈着合直径　714.8 mm，胎圈着合宽度　280 mm，断面水平轴位置（H1/H2）　0.989，采用运动型单导向仿生花纹设计，花纹深度　8.2 mm，花纹饱和度　61%，花纹周节数　32。施工设计：胎面采用三方四块结构，带束层采用2层3×0.30HT钢丝帘布，胎体采用2层1670dtex/2聚酯帘布，采用一次法成型机侧包冠成型，双模液压硫化机硫化。成品轮胎性能试验结果表明，轮胎的外观质量、充气外缘尺寸、强度性能、脱圈阻力、耐久性能和高速性能均符合相应的国家或企业标准要求。
英文摘要:
      The design on 295/25R28 ultra-low section passenger car radial tire was described.In the structure design，the following parameters were taken：overall diameter?850 mm，cross-sectional width?310 mm，width of running surface　260 mm，arc height of running surface　8 mm，bead diameter at rim seat　714.8 mm，bead width at rim seat　280 mm，maximum width position of cross-section（H1/H2）　0.989，using bionic pattern with sports single guide design，pattern depth　8.2 mm，block/total ratio　61%，number of pattern pitches　32.In the construction design，the following processes were taken：using three-formula and four-piece tread，2 layers of 3×0.30HT steel cord for belt，2 layers of 1670dtex/2 polyester cord for carcass，using one-stage building machine side crowning molding to build tires，and double-mold hydraulic vulcanizing press to cure tires.The test results of finished tire showed that，the appearance quality，inflated peripheral dimension，strength，bead unseating resistance，durability and high-speed performance of tire met the requirements of corresponding national or enterprise standards.
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