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| 橡胶密封模具设计参数的研究 |
| Study on Design Parameters of Rubber Seal Mould |
| Received:February 27, 2018 Revised:February 27, 2018 |
| DOI：10.12137/j.issn.2095-5448.2019.01.0045 |
| 中文关键词: 橡胶密封制品；模具；设计参数；线膨胀系数；位移云图 |
| 英文关键词: rubber sealing product；mould；design parameter；linear expansity；displacement nephogram |
| 基金项目:广州市珠江科技新星专项（201610010161） |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | WU Jianjun | Guangzhou Mechanic Engineering Research Institute | wujianjun@gmeri.com | | WANG Huan | | | | XIANG Yu* | 广州机械科学研究院有限公司 | xiangyu@gmeri.com | | QIU Zhaopei | 广州机械科学研究院有限公司 | |
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| 中文摘要: |
| 以Y形密封圈为例，研究橡胶密封模具设计参数。模具壁厚主要取决于模具材料的屈服强度、橡胶密封制品胶料的硬度和流动性。模具热膨胀主要影响橡胶制品的直径，不会对模具型腔配合面造成不良影响，对模具断面尺寸的影响可以忽略不计。锁模力对橡胶制品尺寸的影响非常小，可以忽略不计。模具型腔内部压力主要影响橡胶制品的断面尺寸，严重时模具型腔配合面会产生缝隙。设计橡胶密封模具型腔尺寸时需重点考虑橡胶制品胶料的硬度、流动性、线膨胀系数和硫化温度以及模具材料的屈服强度和线膨胀系数。 |
| 英文摘要: |
| Taking Y-shaped sealing ring as an example，the design parameters of rubber seal mould were studied.The mould wall thickness mainly depended on the yield strength of mould materials，the hardness and fluidity of rubber product compounds.The thermal expansion of mould mainly affected the diameter of rubber product，and had no adverse effects on the fitting surface of mould cavity，the influence of thermal expansion on the cross dimensions of mould could be neglected.The influence of clamping force on the size of rubber products was very small and could be neglected.The cavity pressure of mould mainly affected the cross dimensions of the rubber product，and caused cracks in fitting surface of mould cavity in severe cases. The hardness，fluidity，linear expansity，vulcanization temperature of rubber product compounds，as well as the yield strength and linear expansity of mould materials should be taken into account in design of size of mould cavity. |
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