460/85R30农业子午线轮胎的设计

Design of 460/85R30 Agriculture Radial Tire

介绍460/85R30农业子午线轮胎的设计。结构设计:外直径1 518mm,断面宽448mm,行驶面宽度422mm,弧度高26mm,胎圈着合直径762mm,胎圈着合宽度406.4mm,断面水平轴位置(H1/H2)0.918 8,花纹深度49mm,花纹饱和度26.7%,花纹周节数23。施工设计:胎体采用2层1670dtex/2聚酯帘布,带束层采用5层1670dtex/2聚酯帘布,采用三段成型机成型、双模定型硫化机硫化。成品性能试验结果表明,轮胎的充气外缘尺寸和物理性能均符合相应设计和国家标准要求。

The design of 460/85R30 agriculture radial tire was described. In the structure design, the following parameters were taken： overall diameter 1 518 ram,cross-sectional width 448 mm, width of running surface 422 ram,height of running surface 26 ram, bead diameter at rim seat 762 ram,bead width at rim seat 406.4 mm,maximum width position of cross-section（Hi/H2） 0. 918 8, pattern depth 49 ram,block/total 26.7%,number of pattern pitch 23. In the construction design, the following processes were taken. 2 layers of 1670dtex/2 polyester cord for carcass ply, 5 layers of 1670dtex/2 polyester cord for belt ply, and using three-stage building machine to build tires and double-mold shaping press to cure tires. It was confirmed by the tests of the finished tire that, the peripheral dimension and physical properties met the requirements of relative design and national standard.