| 水压下大应变测试密封技术研究 |
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| 引用本文： | 张小平,李克明,顾超华'',孙国有'',郑津洋.水压下大应变测试密封技术研究[J].华南农业大学学报(社会科学版),2016,34(4). |
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| 作者姓名： | 张小平 李克明 顾超华' 孙国有' 郑津洋 |
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| 作者单位： | 1．浙江大学化工机械研究所，浙江杭州310027：2．浙江大学高压过程装备与安全教育部工程
研究中心，浙江杭州 310027;3．浙江大学流体动力与机电系统国家重点实验室，浙江杭州 310027 |
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| 基金项目： | 国家重大科技专项( ZBOIK10W09)。 |
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| 摘 要： | 水压下的应变测试中测试系统的密封防护是应变测量成功与否的关键。针对在水压及大应变条件下，常规密封
防护方法易出现密封防护剂松脱，难以保证绝缘和密封性能的情况，文章提出了水压下大应变测试的密封技术。通过试
验研究了环氧树脂+硅橡胶、硅橡胶对大应变的适应性，设计了压力温度的补偿方法和应变测试系统的密封工艺。水压
为2.0 MPa，应变为4.5%的实验案例表明，文章提出的水压下大应变测试密封技术可行并且有效。
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| 关 键 词： | 密封技术 应变测试 大应变 防护剂 |
Research on Sealing Technology of Large Strain Measurement under Hydraulic Pressure |
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| ZHANG Xiaopingl,LI Kemingl,GU Chaohual,SUN Guoyoul,ZHENG Jinyangl.Research on Sealing Technology of Large Strain Measurement under Hydraulic Pressure[J].Journal of South China Agricultural University:Social Science Edition,2016,34(4). |
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| Authors: | ZHANG Xiaopingl LI Kemingl GU Chaohual SUN Guoyoul ZHENG Jinyangl |
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| Institution: | 1. Institute of Process Equipment,Zhejiang University,Hangzhou 310027 ,China;2.High-Pressure Process
Equipment and Safety Engineering Research Center of Ministry of Education,Zhejiang University,Hangzhou 310027 ,China;
3. The State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027 ,China |
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| Abstract: | In the strain measurement under the condition of water pressure, the sealing protection of testing system is the
key to the success of strain measurement. However, the seal protective agent in the conventional strain measurement
under the condition of water pressure and large strain is easy to loose and it is difficult to guarantee insulation snd sealing
performance. This paper studied the sealing technology of large strain measurement system under hydraulic pressure.
Specifically, the epoxy resin and silicone rubber were selected by experimental study, and the compensation method of
pressure and temperature was optimally designed. And then the concrete sealing process of strain measurement system
was improved. The feasibility and effectiveness of the sealing technology of large strain measurement under hydraulic
pressure was well verified by test case with hydraulic pressure 2.0 MPa and strain 4.5%. |
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| Keywords: | sealing technology strain measurement large strain protective agent |
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