445/50R22.5宽基低断面全钢载重子午线轮胎的设计  

Design on 445/50R22.5 Wide Base Low Profile Truck and Bus Radial Tire

作　　者：马斌 李世军 刘平 杨晓斌 李东阳 付金鹏 MA Bin;LI Shijun;LIU Ping;YANG Xiaobin;LI Dongyang;FU Jinpeng(Ningxia Shenzhou Tire Co.,Ltd,Shizuishan 753400,China)

机构地区：[1]宁夏神州轮胎有限公司,宁夏石嘴山753400

出　　处：《橡胶科技》2020年第10期582-585,共4页Rubber Science and Technology

摘　　要：介绍445/50R22.5宽基低断面全钢载重子午线轮胎的设计。结构设计:外直径1012 mm,断面宽447 mm,行驶面宽度385 mm,行驶面弧度高12 mm,胎圈着合直径569.5 mm,胎圈着合宽度380 mm,断面水平轴位置(H1/H2)0.989,胎面花纹采用6条纵向花纹沟设计,花纹深度14.5 mm,花纹饱和度78%,花纹周节数51。施工设计:采用双复合挤出胎面,1#和2#带束层采用3+8×0.33HT钢丝帘线,3#带束层采用3×0.20+6×0.35HT钢丝帘线,0°带束层采用3×7×0.20HE钢丝帘线,胎体采用0.25+6+12×0.225HT钢丝帘线,采用一次法三鼓成型机成型、双模蒸锅式硫化机硫化。成品性能试验结果表明:轮胎的充气外缘尺寸、强度性能和耐久性能均达到相应国家标准或企业标准要求。The design on 445/50R22.5 wide base low profile truck and bus radial tire was described.In the structure design,the following parameters were taken:overall diameter 1012 mm,cross-sectional width 447 mm,width of running surface 385 mm,arc height of running surface 12 mm,bead diameter at rim seat 569.5 mm,bead width at rim seat 380 mm,maximum width position of cross–section(H1/H2)0.989;the tread pattern was designed with 6 longitudinal grooves,the pattern depth was 14.5 mm,the block/total ratio was 78%,and the number of pattern pitch was 51.In the construction design,the following processes were taken:co-extruded tread,3+8×0.33HT steel cord for 1#and 2#belt,3×0.20+6×0.35HT steel cord for 3#belt,3×7×0.20HE steel cord for 0°belt,0.25+6+12×0.225HT steel cord for carcass,using one-step three-drum building machine to build tires,and double mold steam vulcanizing press to cure tires.The test results of the finished tire showed that,the inflated peripheral dimension,strength,durability of the finished tire met the requirements of the corresponding national standards or enterprise standards.

关 键 词：宽基轮胎 全钢载重子午线轮胎 低断面 结构设计 施工设计 

分 类 号：U463.341.3[机械工程—车辆工程] TQ336.1[交通运输工程—载运工具运用工程]