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14.00R20 20PR全钢载重子午线轮胎的设计
Design of 14.00R20 20PR Truck and Bus Radial Tire
  
DOI：
中文关键词: 全钢载重子午线轮胎；结构设计；施工设计
英文关键词: truck and bus radial tire；structure design；construction design
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中图分类号:U463.341＋.3/.6
Author NameAffiliation
LI Ren-guo Xingyuan Tire Group Co.，Ltd 
ZHANG Peng Xingyuan Tire Group Co.，Ltd 
CHENG Gang Xingyuan Tire Group Co.，Ltd 
ZHENG Hu Xingyuan Tire Group Co.，Ltd 
JING Xin-ying Xingyuan Tire Group Co.，Ltd 
LIU Yang Xingyuan Tire Group Co.，Ltd 
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中文摘要:
      介绍14.00R20 20PR全钢载重子午线轮胎的设计。结构设计：外直径　1 245 mm，断面宽　372 mm，行驶面宽度　295 mm，行驶面弧度高　9.608 mm，胎圈着合直径　511 mm，胎圈着合宽度　267 mm，断面水平轴位置(H1/H2)　0.897，花纹深度　25 mm，花纹饱和度　72.35%，采用横向块状花纹设计。施工设计：胎面采用两方两块结构；胎体采用3＋9＋15×0.245HT钢丝帘线，1#和2#带束层采用3＋9＋15×0.22＋0.15钢丝帘线，3#带束层采用5×0.35HI钢丝帘线，0°带束层采用3×7×0.20HE钢丝帘线；采用一次法成型机成型，蒸锅式双模硫化机硫化。成品轮胎试验结果表明，轮胎充气外缘尺寸、强度性能和耐久性能均符合相应设计和国家标准要求。
英文摘要:
      The design of 14.00R20 20PR truck and bus radial tire was described.In the structure design，the following parameters were taken：overall diameter　1 245 mm，cross-sectional width　372 mm，width of running surface　295 mm，height of running surface　9.608 mm，bead diameter at rim seat　511 mm，bead width at rim seat　267 mm，maximum width position of cross section (H1/H2)　0.897，pattern depth　25 mm，block/groove ratio　72.35%，with the design of transverse pattern groove.In the construction design，the following processes were taken：two-formula and two-piece extruded tread，3＋9＋15×0.245HT steel cord for carcass ply，3＋9＋15×0.22＋0.15 steel cord for 1# and 2# belt ply，5×0.35HI steel cord for 3# belt ply，3×7×0.20HE steel cord for 0° belt ply；using single stage building machine to build tires，and using double mold steam vulcanizer to cure tires.It was confirmed by the tests of finished tires that the inflated peripheral dimension，strength performance and endurance performance met the requirements in the relative design and national standard.
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