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295/60R22.5 DT966低断面全钢子午线轮胎的设计
Design on 295/60R22.5 Low Profile Truck and Bus Radial Tire
Received:November 03, 2020  Revised:November 16, 2020
DOI：10.12137/j.issn.2095-5448.2021.02.0082
中文关键词: 全钢子午线轮胎；低断面轮胎；结构设计；施工设计
英文关键词: truck and bus radial tire；low profile tire；structure design；construction design
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Author NameAffiliationE-mail
liuyang* Ningxia Shenzhou Tire Co., Ltd. nxly1991@163.com 
lishijun Ningxia Shenzhou Tire Co., Ltd.  
lukai Ningxia Shenzhou Tire Co., Ltd.  
zhangrongrong Ningxia Shenzhou Tire Co., Ltd.  
lixiaolong Ningxia Shenzhou Tire Co., Ltd.  
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中文摘要:
      介绍295/60R22.5低断面全钢子午线轮胎的设计。结构设计：外直径　920 mm，断面宽　300 mm，行驶面宽度　255 mm，行驶面弧度高　7.5 mm，胎圈着合直径　569.5 mm，胎圈着合宽度　241.3 mm，断面水平轴位置（H1/H2）　1.011，花纹深度　17 mm，花纹饱和度　78%，花纹周节数　50，采用4条纵向花纹沟设计。施工设计：采用两方三块挤出胎面，胎体采用3＋9×0.22＋0.15HT钢丝帘线，1#和2#带束层采用3×0.20＋6×0.35HT钢丝帘线，3#带束层采用5×0.35HT钢丝帘线，2层0°带束层均采用3×7×0.20HE钢丝帘线。采用一次法成型机成型，蒸锅式硫化机硫化。成品轮胎性能试验结果表明，轮胎的充气外缘尺寸、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 on 295/60R22.5 low profile truck and bus radial tire was described.In the structure design，the following parameters were taken：overall diameter　920 mm，cross-sectional width　300 mm，width of running surface　255 mm，arc height of running surface　7.5 mm，bead diameter at rim seat　569.5 mm，bead width at rim seat　241.3 mm，maximum width position of cross section（H1/H2）　1.011，pattern depth　17 mm，block/total ratio　78.16%，and number of pattern pitches　50，with the design of 4 longitudinal pattern grooves.In the construction design，the following processes were taken：using two-formula and three-piece extruded tread，3＋9×0.22＋0.15HT steel cord for carcass ply，3×0.20＋6×0.35HT steel cord for 1# and 2# belt ply，5×0.35HT steel cord for 3# belt ply，3×7×0.20HE steel cord for 2 layers of 0° belt ply，using single stage building machine to build tires，and using steamed curing press to cure tires.It was confirmed by the tests of finished tire that the inflated peripheral dimension，strength performance and endurance performance met the requirements of relative design and national standard.
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