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首页> 外文会议>ESA SP-591; European Space Mechanisms and Tribology Symposium(ESMATS 2005); 20050921-23; Lucerne(CH) >SELF LUBRICATING COMPOSITES FOR MEDIUM TEMPERATURES IN SPACE BASED ON POLYIMIDE SINTIMID
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SELF LUBRICATING COMPOSITES FOR MEDIUM TEMPERATURES IN SPACE BASED ON POLYIMIDE SINTIMID

机译：基于聚酰亚胺亚胺的空间中温自润滑复合材料

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摘要

The paper is surveying the results of an ESA-project on a polyimide composite named "SINTIMID". The main target was to find a self lubricating composite (SLC) which is suitable for missions to the inner solar system, where operating temperatures up to 300℃ in vacuum are expected. The paper comprises a short introduction into the requirements derived from ECSS for SLC material intended for use in journal bearings working in space. It covers a brief description of new equipments for medium temperatures "vacuum tribometer" and "Journal Bearing Test rig". The presented results will cover mainly the friction and wear behaviour and component test performance. The influences of parameters like load, speed, atmosphere and temperature are discussed and compared to other already known materials, e.g. Vespel SP3. The verification procedure included three phases: a screening on several compositions with different fillers and combinations, a detailed friction test campaign on two best compositions (15M and 30M) and a final bush testing on only the best (15M=15w% MoS_2). All material properties in relation to ECSS E30 were verified. No objections to the requirements were identified. Finally, a recommendation for design of bushes was set up on the results.
机译：本文正在调查名为“ SINTIMID”的聚酰亚胺复合材料的ESA项目的结果。主要目标是找到一种自润滑复合材料（SLC），该材料适用于内部太阳系的飞行，该系统的真空工作温度有望达到300℃。本文简要介绍了从ECSS得出的SLC材料的要求，这些要求适用于在太空中工作的轴颈轴承。它简要介绍了用于中等温度的新设备“真空摩擦计”和“轴颈轴承测试台”。提出的结果将主要涵盖摩擦和磨损行为以及部件测试性能。讨论了诸如负载，速度，气氛和温度之类的参数的影响，并将其与其他已知材料进行比较，例如Vespel SP3。验证程序包括三个阶段：对几种具有不同填料和组合物的组合物进行筛选，针对两种最佳组合物（15M和30M）进行详细的摩擦测试，以及仅针对最佳组合物（15M = 15w％MoS_2）进行最终的衬套测试。验证了与ECSS E30有关的所有材料属性。没有发现对要求的反对意见。最后，根据结果提出了灌木设计的建议。

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