Design on 235/45R18 98T Studded Snow Passenger Car Radial Tire
The design of 235/45R18 98T studded snow passenger car radial tire was introduced.In the structural design,the following parameters were taken:overall diameter 664 mm,cross-section width 250 mm,width of running surface 207 mm,arc height of running surface 8.5 mm,bead diameter at rim seat 460.4 mm,bead width at rim seat 230 mm,maximum width position of cross-section(H1/H2)0.923,adopting winter tire tread patterns,presetting studded holes.In the construction design,the following parameters were taken:using tread compound,base compound and wing compound three-extruded tread,two-layers of 3X0.30HT steel cord for belt,930dtex/2 modified nylon cord fabric for crown ply,one-layer of 1670dtex/2 high modulus and low shrinkage polyester cord fabric for carcass,using two-stage building machine to build tires and B-type hydraulic vulcanizing press to cure tires.The finished tire performance test results showed that the inflated peripheral dimension,strength,high-speed performance,durability and bead unseating resistance all met the corresponding design and national standards,and the outdoor performance had passed the European R117 regulation certification.
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