Design of Lightweight 12R22.5 Tubeless All-steel Radial Tire
The design of a lightweight 12R22.5 tubeless all-steel radial tire was described.In the structural design,the following parameters were taken:overall diameter 1 073 mm,cross-sectional width 292 mm,width of running surface 215 mm,arc height of running surface 5.5 mm,bead diameter at rim seat 569.5 mm,bead width at rim seat 240 mm,maximum width position of cross-section(H1/H2)0.98,adopting 4 S-shaped patterns for tread,pattern depth 15.5 mm,block/total ratio 74.6％,and number of pattern pitches 57.In the construction design,the following processes were taken:using double composite extruded tread,using 3 layer belt+0° belt structure,0.37+6X0.32ST steel cord for 1# and 2#belt,5×0.30HI steel cord for 3# belt,3×7×0.20HE steel cord for 0° belt,3×0.24/9×0.225ST steel cord for carcass,using one-stage capsule molding machine to build tire and a steamer type vulcanizing press to cure tire.The finished tire performance test results showed that,the inflated peripheral dimension,strength and durability met the requirements of corresponding national standards and designs.
NETL
NSTL
万方数据
维普
