Design of ST225/75R15 All-steel Trailer Special Tire
The design of ST225/75R15 all-steel trailer special tire was introduced.In the structural design,the following parameters were taken:overall diameter 710 mm,cross-section width 220 mm,width of running surface 180 mm,bead diameter at rim seat 379 mm,adopting trailer tire special patterns,pattern depth 9 mm,block/total ratio 74.7%,and number of pattern pitches 63.In the construction design,the following parameters were taken:adopting wave shape design for tread,4+3×0.33ST steel cord for 1# and 2# belt,3+8X0.22ST steel cord for carcass,using two-drum one-stage building machine to build tires and hot plate press to cure tires.The finished tire performance test results showed that the inflated peripheral dimension,strength,durability and high-speed performance all met the corresponding design and national standards.
all-steel trailer special tirestructural designconstruction designfinished tire performance