轮胎复合胎面脱层原因分析及解决措施  

Root Cause Analysis of Complex Tread Delamination and Corrective Actions

作　　者：宋海龙 张志坚 徐祥越 张超 孙昌龙 马扬 刘绍林 SONG Hailong;ZHANG Zhijian;XU Xiangyue;ZHANG Chao;SUN Changlong;MA Yang;LIU Shaolin(Bayi Rubber Co.,Ltd,Zaozhuang 277800,China)

机构地区：[1]八亿橡胶有限责任公司,山东枣庄277800

出　　处：《轮胎工业》2020年第9期564-566,共3页Tire Industry

摘　　要：分析轮胎复合胎面脱层的产生原因并提出相应解决措施。胎面胶门尼粘度偏高、停放时间和环境温度变化大、终口型开型系数不匹配、机头流道和预口型设计不合理、挤出机转速过大、胎面挤出温度过高、机头压力偏低等均会造成复合胎面脱层和气泡现象,采取严格控制胎面胶门尼粘度、改善停放环境、优化终口型开型系数、重新设计机头流道和预口型形式、减小挤出机转速和提高挤出机机头压力等措施,有效解决了轮胎复合胎面脱层问题。The root cause of complex tread delamination was analyzed and the corrective actions were proposed.It was found that the following factors could cause the delamination and bubble formation in the complex tread:high Mooney viscosity of tread compound,large variance of parking time and temperature,mismatching of the opening coefficient of the final die,inappropriate design of the head flow channel and pre-die,excessive rotation speed of the extruder,high extrusion temperature and low pressure at extrusion head.Correspondingly,corrective actions were taken to solve the problems:strictly controlling the Mooney viscosity of tread compound,improving the parking environment,optimizing the opening coefficient of the final die,redesigning the head flow channel and pre-die,reducing the rotation speed of the extruder and increasing the head pressure of the extruder.

关 键 词：轮胎 复合胎面 挤出 脱层 气泡 门尼粘度 口型设计 转速 压力 

分 类 号：TQ336.1[化学工程—橡胶工业] TQ330.64