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LT325/60R18 10PR轻型载重子午线轮胎的设计
Design of LT325/60R18 10PR Light Truck and Bus Radial Tire
  
DOI：
中文关键词: 轻型载重子午线轮胎；结构设计；施工设计
英文关键词: light truck and bus radial tire；structure design；construction design
基金项目:
中图分类号:U463.341＋.3/.6；TQ336.1
Author NameAffiliation
WANG Ran Shandong Duratti Rubber Co.，Ltd 
CHEN Hu TTA Tire Technology Alliance 
GU Pei-shuang TTA Tire Technology Alliance 
YANG Jing-hui TTA Tire Technology Alliance 
ZHU Qing-shuai TTA Tire Technology Alliance 
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中文摘要:
      介绍LT325/60R18 10PR轻型载重子午线轮胎的设计。结构设计：外直径　843.6 mm，断面宽　332 mm，行驶面宽度　254 mm，行驶面弧度高　11 mm，胎圈着合直径　460.6 mm，胎圈着合宽度　267 mm，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　13.5 mm，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Φ1.295 mm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。
英文摘要:
      The design of LT325/60R18 10PR light truck and bus radial tire was described.In the structure design，the following parameters were taken:overall diameter843.6 mm，cross-sectional width　332 mm，width of running surface　254 mm，height of running surface　11 mm，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.
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