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| 轮胎胎侧断差的成因和控制方法 |
| Causes and Control Method of Sidewall Section Offset of Tire |
| Received:November 09, 2022 Revised:November 09, 2022 |
| DOI：10.12135/j.issn.1006-8171.2023.02.0111 |
| 中文关键词: 胎侧断差；轴向错位；模具结构间隙；活络模背压；测量方法 |
| 英文关键词: sidewall section offset；axial misalignment；mould structure clearance；back pressure of segmented mold；measuring method |
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| 中文摘要: |
| 研究轮胎胎侧断差的成因及其控制方法。结果表明：活络模上、下模相对于花纹块的轴向错位是产生断差的
原因，模具结构内部的3处间隙是影响轴向错位的主要因素；在合模阶段保持合适的活络模背压，可避免胎侧在模具还未
闭合时产生台阶。 |
| 英文摘要: |
| The causes of tire sidewall section offset and its control methods were studied. The results
showed that the axial misalignment of the upper and lower molds of the segmented mold relative to the
pattern block was the cause of the section offset，and the three gaps in the die structure were the main factors
affecting the axial misalignment. Maintaining proper back pressure of the segmented mold in the mold closing
stage could avoid steps on the sidewall when the mold was not closed. |
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