摘要
介绍LT325/60R18 10PR轻型载重子午线轮胎的设计。结构设计:外直径843.6mm,断面宽332mm,行驶面宽度254mm,行驶面弧度高11mm,胎圈着合直径460.6mm,胎圈着合宽度267mm,断面水平轴位置(H1/H2)1.104,胎面采用交错排布的块状花纹,花纹深度13.5mm,花纹饱和度36.5%,花纹周节数42。施工设计:胎面采用三方四块结构,胎体采用2层1670dtex/2高模低缩聚酯浸胶帘布,带束层采用2层3×0.20+2×0.25HT钢丝帘布,冠带层采用1层1400dtex/2改性锦纶66浸胶帘布,钢丝圈采用Φ1.295mm的低铜镀层回火胎圈钢丝,采用二次法成型机成型、B型硫化机硫化。成品性能试验结果表明,成品轮胎的外缘尺寸、强度性能、耐久性能和低气压性能以及高速性能均符合相关设计和标准要求。
The design of LT325/60R18 10PR light truck and bus radial tire was described. In the structure design, the following parameters were taken： overall diameter 843. 6 mm, cross-sectional width 332 ram,width of running surface 254 ram,height of running surface 11 ram,bead diameter at rim seat 460.6 mm,bead width at rim seat 267 mm,maximum width position of cross-section （H1/H2） 1. 104,alternatively aligned pattern,pattern depth 13.5 mm,block/total ratio 36.5%, and total number of pitches 42. In the construction design,three-formula and four-piece structure was used for tread,2 layers of 1670dtex/2 high modulus and low shrinkage dipped polyester cord were applied for carcass ply,two layers of 3 × 0.20＋ 2 × 0.25 HT steel cord were used for belt, one layer of 1400dtex/2 dipped modified nylon 66 was adopted for cap ply, and Φ1. 295 mm tempered bead wire with low copper content coating was applied for bead. The tire was built using the two stage building machine and cured on type B press. It was confirmed by the tests of the finished tire that, the peripheral dimension, strength performance, endurance performance, low inflation pressure performance, and high speed performance met the requirements of design and corresponding standards.
出处
《轮胎工业》
CAS
2015年第1期18-20,共3页
Tire Industry
关键词
轻型载重子午线轮胎
结构设计
施工设计
light truck and bus radial tire
structure design
construction design
