225/65R17 106T ARCTIC STU99雪地轮胎的设计

Design on 225/65R17106T ARCTIC STU99 Snow Tire

介绍225/65R17106T ARCTIC STU99雪地轮胎的设计。结构设计:外直径714 mm,断面宽237 mm,行驶面宽度180 mm,行驶面弧度高7.5 mm,胎圈着合直径432 mm,胎圈着合宽度197.8 mm,断面水平轴位置(H1/H2)0.9860,胎面花纹采用长型花纹(M和L型)与短型花纹(S型)交替变节距设计,花纹深度10.5 mm,花纹饱和度68.25%,花纹周节数31。施工设计:胎面采用分层挤出,胎侧采用双复合挤出,冠带层采用锦纶66帘线,1#和2#带束层使用3×0.30HT钢丝帘线,胎体采用高模量低收缩聚酯帘线,采用一次法成型机成型、液压硫化机和氮气硫化工艺硫化。成品性能试验结果表明,轮胎的充气外缘尺寸、强度性能、耐久性能和高速性能均达到相应设计和企业标准要求。

The design on 225/65R17106T ARCTIC STU99 snow tire was described.In the structure design,the following parameters were taken:overall diameter 714 mm,cross-sectional width 237 mm,width of running surface 180 mm,arc height of running surface 7.5 mm,bead diameter at rim seat 432 mm,bead width at rim seat 197.8 mm,maximum width position of cross–section(H1/H2)0.9860,alternate pitch design of long pattern(M and L type)and short pattern(S type),pattern depth 10.5 mm,block/total ratio 68.25%,and number of pattern pitches 31.In the construction design,the following processes were taken:layered extrusion was adopted to produce the tread,double compound extrusion was used for the sidewall compound production,nylon 66 cord was applied in the crown belt,3×0.30HT steel cord was adopted for 1#and 2#belt,and high modulus and low shrinkage polyester cord was used for carcass.One-stage building machine was used to build tires,and hydraulic vulcanizing press and nitrogen vulcanization process were applied to cure tires.The test results of the finished tire showed that,the inflated peripheral dimension,strength,durability and high speed performance of the finished tire met the requirements of the corresponding design and enterprise standards.