| Influence of Product Structure on Fire Resistance of Elastic Rubber Components of Rail Vehicles |
| Received:November 24, 2019 Revised:November 24, 2019 |
| DOI：10.12136/j.issn.1000-890X.2020.06.0443 |
| Key Words: railway vehicle；elastic rubber component；product structure；proportion of rubber area；metal partition；fire resistance |
| Author Name | Affiliation | E-mail | | SONG Hongguang* | CRRC Qingdao Sifang Rolling Stock Research Institute Co. ，Ltd | jiangyong_27@163.com | | CAO Jiangyong | CRRC Qingdao Sifang Rolling Stock Research Institute Co. ，Ltd | | | WANG Fusheng | CRRC Qingdao Sifang Rolling Stock Research Institute Co. ，Ltd | | | WANG Shudong | CRRC Qingdao Sifang Rolling Stock Research Institute Co. ，Ltd | |
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| Abstract: |
| The influence of product structure on the fire resistance of elastic rubber components of rail vehicles was studied. By simulating the structure of elastic rubber components，the fire resistance tests of the samples with different types of rubber-metal structure showed that when the proportion of rubber area was
the same，the fire resistance of the samples with metal partition in rubber was obviously improved，and the more metal partition was，the better the fire resistance was. As the proportion of rubber area decreased，the maximum smoke density and the maximum average heat release rate of the samples with different structures decreased，and the fire resistance was improved. When the proportion of rubber area of the sample without metal isolation was less than 60%，the fire resistance of the sample could meet the HL2 requirements of EN 45545-2. When the proportion of rubber area of the sample with two metal partitions in rubber or metal cylinder in rubber center reached 80%，the fire resistance of the sample could still meet the HL2 requirements of EN 45545-2. |
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