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介绍6.50R1612PR全钢轻型载重子午线轮胎的结构设计、施工设计和工艺设计。结构设计:外直径膨胀率取1.004,断面宽膨胀率取1.016,行驶面宽度140mm,行驶面弧度高6mm,断面水平轴位置H1/H2取0.98,胎圈着合宽度140mm。施工设计:胎体采用3×0.22+9×0.20HT钢丝帘线,带束层采用2层3×0.20+6×0.35HT钢丝帘线。试验结果表明,成品轮胎外缘尺寸、强度性能、高速性能和耐久性能均符合设计要求和国家标准。
6.50R1612PR steel lightweight truck radial tire structure design, construction design and process design. Structure design: The expansion rate of the outer diameter is taken as 1.004, the width expansion rate of the section is taken as 1.016, the width of the driving surface is 140mm, the curvature of the driving surface is 6mm, the horizontal axis position H1 / H2 of the section is taken as 0.98 and the bead width is 140mm. Construction design: The carcass is made of 3 × 0.22 + 9 × 0.20HT steel cord, and the belt adopts 2 layers of 3 × 0.20 + 6 × 0.35HT steel cord. The test results show that the finished tire rim size, strength performance, high-speed performance and durability are in line with design requirements and national standards.