| 轮胎阶梯式直压硫化内模具的疲劳寿命分析 |
| Fatigue Life Analysis of Tire Stepped Direct-pressure Vulcanization Inner Mold |
| 投稿时间：2022-03-29 修订日期：2022-03-29 |
| DOI：10.12136/j.issn.1000-890X.2023.11.0911 |
| 中文关键词: 轮胎 阶梯式直压硫化内模具 疲劳寿命 有限元分析 |
| 英文关键词: tire stepped direct-pressure vulcanization inner mold fatigue life finite element analysis |
| 基金项目:山东省重大科技创新工程项目（2019JZZY010450）；中央高校基本科研业务费项目（JD2215） |
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| 中文摘要: |
| 对轮胎阶梯式直压硫化内模具（简称内模具）的疲劳寿命进行有限元分析。结果表明：正常工况下内模具的疲劳寿命为7.682×105次，如果内模具一天24 h不停地工作，每次的硫化时间为20 min，两次硫化工序间隔为5 min，内模具的实际工作时长为29.2年；与传统硫化胶囊相比，内模具的疲劳寿命大幅延长，同时可以提高成品轮胎的硫化精度，改善硫化质量。 |
| 英文摘要: |
| The fatigue life of tire stepped direct-pressure vulcanization inner mold（referred to as inner mold） was analyzed by finite element method.The results showed that，the fatigue life of the inner mold was 7.682×105 times under normal working conditions，if the inner mold would work continuously 24 h a day，with a vulcanization time of 20 min each time and a 5 min interval between the two vulcanization processes，the actual working time of inner mold would be 29.2 a.Compared with traditional vulcanization capsules，the fatigue life of inner mold was significantly extended，and the vulcanization accuracy of finished tire could be improved，thereby improving the vulcanization quality. |
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