ST235/85R16拖车专用公路型全钢子午线轮胎的设计

Design of ST235/85R16 Trailer Special Road Type All-steel Radial Tire

介绍ST235/85R16拖车专用公路型全钢子午线轮胎的设计。结构设计:外直径798 mm,断面宽230 mm,行驶面宽度182 mm,行驶面弧高度8 mm,胎圈着合直径404 mm,胎圈着合宽度184 mm,断面水平轴位置(H1/H2)0.9899。胎面采用4条纵向花纹沟,花纹深度9 mm,花纹饱和度78%,花纹周节数71。施工设计:胎面采用单胶种整体挤出形式,胎体采用3×0.24+9×0.225CCST钢丝帘线,带束层采用2+7×0.30ST钢丝帘线,采用一次法成型机成型、热板式硫化机硫化。成品性能试验结果表明,轮胎的充气外缘尺寸、强度和耐久性能均符合国家标准要求,高速性能达到设计要求。

The design of the ST235/85R16 trailer special road type all-steel radial tire was introduced.In the structural design,the following parameters were taken:overall diameter 798 mm,cross-sectional width 230 mm,width of running surface 182 mm,arc height of running surface 8 mm,bead diameter at rim seat 404 mm,bead width at rim seat 184 mm,and maximum width position of cross–section(H1/H2)0.9899.The tread adopted four longitudinal pattern grooves,pattern depth 9 mm,block/total ratio 78%,and number of pattern pitches 71.In the construction design,the following processes were taken:adopting a single rubber integral extrusion type for tread,3×0.24+9×0.225CCST steel cord for carcass,2+7×0.30ST steel cord for belt,and using one-stage building machine to build tires and hot plate vulcanizing machine to cure tires.The test results of finished tire showed that,the inflated peripheral dimension,strength and durability met the requirements of national standards,and the high-speed performance met the design requirements.