高性能385/65R22.5宽基全钢子午线轮胎的设计

Design of High Performance 385/65R22.5 Wide Base All-steel Radial Tire

介绍高性能385/65R22. 5宽基全钢子午线轮胎的设计。运用经验设计与仿真分析相结合的方法,对模具轮廓及花纹节距排列进行优化,胎面采用耐磨性良好的低滚动阻力胶料。结构设计:外直径1 070 mm,断面宽392mm,行驶面宽度300mm,行驶面弧度高14. 5mm,胎圈着合直径572mm,胎圈着合宽度324mm,断面水平轴位置(H1/H2) 1. 058,胎面采用4条纵向曲折花纹沟变节距设计,花纹深度16 mm,花纹周节数62,花纹饱和度78. 5%。施工设计:胎面采用内嵌式双胶结构,带束层采用4层结构,1~#带束层采用3×0. 20+6×0. 35HT钢丝帘线,2~#和3~#带束层采用3+8×0. 33HT钢丝帘线,4~#带束层采用5×0. 35HI钢丝帘线,胎体采用0. 25+6+12×0. 225HT钢丝帘线,采用三鼓成型机成型,B型翻转式双模硫化机硫化。成品性能试验结果表明:轮胎充气外缘尺寸、强度性能、耐久性能和高速性能良好,滚动阻力性能达到B级,噪声性能达到A级,雪地性能达到专业雪地轮胎水平。

The design of high performance 385/65R22. 5 wide base all-steel radial tire was described.During the designing,both experience design and simulation analysis were used to optimize the mold profile and pattern pitch arrangement,and low rolling resistance compound which had good wear resistance was applied in the tire tread. In structure design,the following parameters were taken:overall diameter 1 070 mm,cross-sectional width 392 mm,width of running surface 300 mm,arc height of running surface14. 5 mm,bead diameter at rim seat 572 mm,bead width at rim seat 324 mm,maximum width position of cross-section(H1/H2) 1. 058,4 longitudinal zigzag groove pattern with variable pitch design for tread,pattern depth 16 mm,the number of pattern pitches 62,and block/total ratio 78. 5%. In construction design,the following processes were taken:built-in structure with two compounds for tread,four-layer structure for belt,3×0. 20+6×0. 35 HT steel cord for 1~# belt,3+8×0. 33 HT steel cord for 2~# and 3~# belt,5×0. 35 HI steel cord for 4~# belt,0. 25+6+12×0. 225 HT steel cord for carcass,using three-drum building machine to build tire and B-type turnover double mold curing press to cure tire. It was confirmed by the finished tire test that,the inflated peripheral dimensions,strength performance,endurance performance and high speed performance were good,the rolling resistance reached grade B,the passing noise reached class A,and the snow road performance reached the level of special snow tire.