| Effect of Inlet Section Structure of Spring Vent Sleeve for Burr-free Tire Mould on Injection Flow Parameters |
| Received:July 06, 2017 Revised:July 07, 2017 |
| DOI：10.12136/j.issn.1000-890X.2019.03.0225 |
| Key Words: burr-free tire mould；spring vent sleeve；inlet section structure；flow resistance coefficient；flow coefficient；CFD；numerical simulation |
| Author Name | Affiliation | E-mail | | HU Haiming | Qingdao University of Science and Technology | 1097784777@qq. com | | XU Yongtao | Qingdao University of Science and Technology | 1097784777@qq.com | | XU Fangxin | Qingdao University of Science and Technology | |
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| Abstract: |
| Based on computational fluid dynamics technology，the effect of the inlet section structure of spring vent sleeve for burr-free tire mould on the injection flow parameters was simulated by using large fluid engineering calculation software CFX15.0. The results showed that，at same spring stroke，the flow resistance coefficient decreased first and then increased gradually with the increasing of the valve stem cone angle，while the flow resistance coefficient decreased with the increasing of spring stroke at same valve stem cone angle. However, the effect of valve stem cone angle and spring stroke on the flow coefficient or outlet flow was opposite. The condition to obtain the best jet flow parameters for the study was that the valve stem cone angle was 65.4°（69.4°） when the spring stroke was less（greater）than
0.2 mm. |
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