The reasons for the loose lines in 0° belt of all-steel truck and bus radial tires were analyzed,and the effect of rolling tread on the rubber at the loose line position of the 0° belt cord end was simulated during the tire building process through finite element simulation.By optimizing the building rolling parameters to reduce the strain of the rubber at the 0° belt cord end,the occurrence rate of loose line defects in 0° belt of the tire was reduced from 0.4%to 0.18%,which not only improved the quality of the tire,but also created good economic benefits.
关键词
全钢载重子午线轮胎/0°带束层/散线/胎面辊压/工艺优化/有限元仿真
Key words
all-steel truck and bus radial tire/0° belt/loose line/rolling tread/process optimizatio element simulation