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。
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 single guide sports design,pattern depth 8.2 mm,block/total ratio 61%,and 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 with 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 highspeed performance of the tire met the requirements of corresponding national or enterprise standards.
作者
周斌
李培湛
ZHOU Bin;LI Peizhan(Wanli Tire Co.,Ltd,Guangzhou 510940,China)
出处
《轮胎工业》
CAS
2020年第7期409-412,共4页
Tire Industry
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
passenger car radial tire
ultra-low section tire
structure design
construction design
tire performance
