【摘要】 本文提供1m直径的压力容器模型在升、降温热瞬态工况下密封试验及分析结果。试验目的在于对自制GH169（相当Inconel718）镀厚银O形环进行热态考验，并对自编密封分析程序系统SMEC给以试验验证。热态试验对于螺栓的温度滞后作了较为细致的测量，为简化计算提供了依据。试验表明，热变形产生的法兰转动十分可观，热态螺栓载荷增量成为热态密封问题的关键。更多还原

【Abstract】 Reported in this paper are the results of both tests and relevant analysis of sealing characteristics for a 1m ID vessel model under heatup and cool-down thermal transient. The purposes of the tests are to verify the performance under thermal condition of a thick silver-plating GH169 O-ring (equivalent to Inconel 718), to verify a sealing analysis computer program, SMEC, Both developed by SNERDI and to observe the thermophysical phenomena, e. g. the bolt temperature lag. The results show that the SMEC is of great value in practice, especially for distinguishing the types of pressure vessels更多还原