全钢载重子午线轮胎挤出胎面气孔率影响因素分析  

Analysis of Influencing Factors on Porosity of Extruded Tread of Truck and Bus Radial Tire

作　　者：尚文跃 SHANG Wenyue(Ningxia Shenzhou Tire Co.,Ltd,Yinchuan 750011,China)

机构地区：[1]宁夏神州轮胎有限公司,宁夏银川750011

出　　处：《轮胎工业》2022年第12期758-762,共5页Tire Industry

摘　　要：研究全钢载重子午线轮胎挤出胎面气孔率的影响因素。结果表明:胶料配方和挤出主机不同,挤出胎面气孔率的差异较大;减小螺杆转速和胶料门尼粘度、降低供胶温度,可减小挤出胎面气孔率;开炼机破胶胎面气孔率小于挤出机破胶胎面;供胶宽度过大或过小,挤出胎面气孔率均会有所增大;根据实际生产情况适当调整胶料配方以及挤出和混炼工艺可减小挤出胎面气孔率。The factors influencing the porosity of the extruded tread of truck and bus radial tires were studied. The results showed that the porosity of the extruded tread varied greatly due to different compound formulas and extruders. Reducing the screw speed,the Mooney viscosity of the compound and the feeding temperature could reduce the porosity of the extruded tread. The porosity of the extruded tread mixed by the open mill was smaller than that of the extruded tread mixed by the extruder. If the supplied width was too large or too small,the porosity of the extruded tread would increase. In order to reduce the porosity of the extruded tread,it was recommended to adjust the compound formula,extrusion process parameters and mixing process technics based on the actual production situation.

关 键 词：全钢载重子午线轮胎 挤出胎面 气孔率 胶料配方 混炼工艺 挤出工艺 

分 类 号：U463.341.6[机械工程—车辆工程] U463.341.59[交通运输工程—载运工具运用工程]