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255/45R19 104W新能源汽车轮胎的设计
Design on 255/45R19 104W New Energy Vehicle Tire
Received:February 28, 2023  Revised:February 28, 2023
DOI：
中文关键词: 新能源汽车；轮胎；结构设计；施工设计；成品轮胎性能
英文关键词: new energy vehicle；tire；structure design；construction design；finished tire performance
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Author NameAffiliationE-mail
LIU Jie* Qingdao Doublestar Tire Industry Co.，Ltd liujie@doublestar.com.cn 
XU Wei Qingdao Doublestar Tire Industry Co.，Ltd  
WANG Jun Qingdao Doublestar Tire Industry Co.，Ltd  
MA Lihua Qingdao Doublestar Tire Industry Co.，Ltd  
DONG Kang Qingdao Doublestar Tire Industry Co.，Ltd  
JIAO Dongdong Qingdao Doublestar Tire Industry Co.，Ltd  
LIU Junjie Qingdao Doublestar Tire Industry Co.，Ltd  
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中文摘要:
      介绍255/45R19 104W新能源汽车轮胎的设计。结构设计：外直径　707 mm，断面宽　270 mm，行驶面宽度　222 mm，行驶面弧度高　7.33 mm，胎圈着合直径　486 mm，胎圈着合宽度　236 mm，断面水平轴位置（H1/H2）　0.92，胎面花纹设计采用五变节距，花纹深度　7.3 mm，花纹饱和度　72.47%，花纹周节数　88。施工设计：胎体采用2层1670dtex/2聚酯帘线，带束层采用2×0.30ST钢丝帘线，冠带条采用1400dtex/2锦纶66帘线，采用一次法成型机成型，氮气硫化工艺硫化。成品性能试验结果表明，轮胎的充气外缘尺寸、强度、脱圈阻力、高速性能和耐久性能均达到相应的国家标准或设计要求。
英文摘要:
      The design on 255/45R19 104W new energy vehicle tire was introduced.In the structure design，the following parameters were taken：overall diameter　707 mm，cross-sectional width　270 mm，width of running surface　222 mm，arc height of running surface　7.33 mm,，bead diameter at rim seat　486 mm，bead width at rim seat　236 mm，and maximum width position of cross–section（H1/H2）　0.92.The tread pattern design adopted a five variable pitch，pattern depth　7.3 mm，block/total ratio　72.47%，and mumber of pattern pitches　88.In the construction design，the following processes were taken：adopted 2 layers of 1670dtex/2 polyester cord for carcass，2×0.30ST steel cord for belt，1400dtex/2 nylon 66 cord for crown strip，and using one-stage building machine to build tires and nitrogen vulcanization process to cure tires.The test results of finished tire showed that，the inflated peripheral dimention，strength，bead unseating resistance，high-speed performance and durability of the tire all met the corresponding national standards or design requirements.
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