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155/65R13 73H微型新能源乘用车轮胎的设计
Design of 155/65R13 73H Mini New Energy Passenger Car Tire
Received:March 24, 2025  Revised:March 24, 2025
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中文关键词: 乘用车轮胎；新能源；结构设计；施工设计
英文关键词: passenger car tire；new energy；structural design；construction design
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Author NameAffiliationE-mail
HONG Zongyue* Beijing Research & Design Institute of Rubber Industry Co.，Ltd liniehong@163.com 
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中文摘要:
      介绍155/65R13 73H微型新能源乘用车轮胎的设计。结构设计：外直径　531 mm，断面宽　158 mm，行驶面宽度　114 mm，行驶面弧度高　5 mm，胎圈着合直径　328 mm，断面水平轴位置（H1/H2）　0.945；胎面结合3D曲面轮廓设计，增加胎面弧度设计，花纹深度　7.5 mm，花纹饱和度　72.8%，5节距非对称变节距花纹周节数为80。施工设计：胎体采用1670dtex/2聚酯帘线，带束层采用3×0.30HT钢丝帘线，钢丝圈采用4-4-4-3的六角形结构，覆胶钢丝直径为1.46 mm；成型采用一次法成型机，硫化采用氮气硫化工艺。成品性能试验结果表明：成品轮胎的充气外缘尺寸、强度性能、脱圈阻力、耐久性能、低气压性能以及高速性能均符合设计和国家标准要求。
英文摘要:
      The design of 155/65R13 73H mini new energy passenger car tire was described.In the structural design，the following parameters were taken：overall diameter　531 mm，cross–sectional width　158 mm，width of running surface　114 mm，arc height of running surface　5 mm，bead diameter at rim seat　328 mm，maximum width position of cross–section（H1/H2）　0.945，adopting a 3D curved contour design with optimized crown curvature pattern depth　7.5 mm，block/total　72.8%，and adopting a 5-pitch asymmetric variable-pitch pattern with 80 pattern pitches in total.In the construction design，the following processes were taken：using 1670dtex/2 of polyester cord for carcass，using 3×0.3HT steel cord for belt，using Φ1.46 mm coated steel wires with a 4-4-4-3 hexagonal structure for bead ring，using a single-stage building machine to build tires，and cured by the nitrogen curing process.The finished tire performance test results showed that the inflated peripheral dimensions，strength，bead unseating resistance，durability，low-pressure performance and high-speed performance of the tire all met the requirements of national standards and design specifications.
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