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17.5-25 14PR TT L-3工程机械轮胎的施工设计
Construction Design of 17.5-25 14PR TT L-3 OTR Tire
  
DOI：
中文关键词: 工程机械轮胎；施工设计；成型机头；胎体；缓冲层；胎面；加工工艺
英文关键词: OTR tire； construction design； building drum； carcass； breaker； tread； processing technology
基金项目:江苏省高校科研成果产业化推进项目（20350888010407）；江苏省高校“青蓝工程”资助项目
中图分类号:
Author NameAffiliation
XU Yunhui Xuzhou College of Industry Technology 
LI Xiaoguang Xuzhou College of Industry Technology 
WEI Bangfeng XCMG Tire Co.， Ltd. 
YANG Hui Xuzhou College of Industry Technology 
CHEN Zhongsheng XCMG Tire Co.， Ltd. 
WU Jinmei XCMG Tire Co.， Ltd. 
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中文摘要:
      介绍17.5-25 14PR TT L-3工程机械轮胎的施工设计。成型机头施设计：半芯轮式结构，机头直径800 mm，机头宽度892 mm。胎体施工设计：帘布层采用8层1840dtex/2锦纶6帘布，缓冲层采用4层930dtex/2锦纶66帘布和1层缓冲胶片，帘布裁断角度均为（30± 0.5）°。胎面施工设计：胎面采用四方五块结构，缓冲胶片热贴在胎面下部；胎圈施工设计：胎圈采用3-3-2结构，钢丝圈排列方式为9×9×2。加工工艺设计：胎体帘布和缓冲层帘布分别采用卧式和立式裁断机裁断，胎面采用分层挤出、机外复合工艺制备，胎坯采用套筒法在PU成型机上成型，轮胎采用自动定型单模硫化机硫化。成品轮胎外观合格率高，试验性能和使用性能好。
英文摘要:
      The construction design of 17.5-25 14PR TT L-3 OTR tire is presented in this paper. The tire building drum is half-core type and had a wheel structure with a die having diameter of 800 mm and width of 892 mm. 8 layers of 1840dtex/2 Nylon 6 cord are used in the carcass ply， and 4 layers of 930dtex/2 Nylon 66 cord and 1 layer of breaker rubber are applied in the breaker ply. All the cord fabrics are cut at the angle of （30± 0.5）°. Four formulations and five piece structure are adopted for tire tread and the breaker rubber layer is hotly coated under the tread. The tire bead has 3-3-2 type structure and the bead wires are arranged in order of 9×9×2. During the tire production， the cord fabrics for carcass ply and breaker ply are cut by using horizontal and vertical cutting machine， respectively. The tread is co-extruded. The tire is built on the PU type building machine by using sleeve method and then cured on automatic curing machine. The process yield is high， and the test results of tire performance in both experimental test and actual service are good.
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