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在相互条件下对液压密封件耐久性的弹性体材料的实验比较

Vishal Kumar¹, Muthu Elen¹

¹Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA.

|December 11, 2025

概括

优化的乙烯二烯单体 (EPDM) 配方为波能转换器的商业聚氨密封件提供了具有成本效益的替代方案. 在液压动力起飞系统中,EPDM表现出优越的耐磨性和更长的预测使用寿命.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
可再生能源可再生能源是可再生能源.

背景情况:

波浪能量转换器 (WEC) 依赖于液压动力起动 (PTO) 系统.
在PTO中的弹性体密封面临着在海洋环境中显著的磨损,疲劳和腐蚀.
材料选择对于WEC的可靠性和寿命至关重要.

研究的目的:

量化比较商业聚氨密封的磨损性能和定制的乙烯二烯单体 (EPDM) 配方.
通过摩擦,磨损率和表面形态分析来评估材料的耐用性.
在干燥条件下为WEC密封材料选择提供基线.

主要方法:

对两个商业热塑性聚氨 (TPU) 密封件和三个定制EPDM配方进行了反复磨损测试 (ASTM G133).
在室温干燥条件下进行了测试,负载为3-10N,速度为10-30mm/s.
评估了摩擦系数 (COF),特定磨损率和磨损表面形态.

主要成果:

商业TPU显示高硬度,低磨损率 (1.93-2.29 × 10-4 mm / Nm),以及浅的磨损痕 (≤380 μm).
碳黑增强EPDM (E3) 的磨损率最低 (1.45×10−4毫米−3毫米−1毫米−1) 和预测寿命最长 (6.2年).
用填充和塑化EPDM (E4,E5) 的磨损率较高 (2.44-2.88 × 10-4 mm / Nm).

结论:

优化的EPDM配方可以成为TPU的经济有效的替代品,用于WEC中中等负载液压密封.
EPDM提供可比或优越的磨损性能和更长的使用寿命预测.
本研究为WEC PTO系统的材料选择和寿命预测提供了定量数据.

关键词:

阿尔查德模型的模型.持久的持久的持久的对于EPDM密封件来说,这是非常重要的.密封的耐用性密封的耐用性磨损速度的磨损率是什么

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