近年来,由于压力容器设计应力的提高,使开孔、接管和各部分连接处的局部应力也不断增加;同时,随着容器的大型化和各种高强度钢的广泛应用,所以疲劳设计问题已经在国内外引起了普遍的重视。为今后能较系统地开展压力容器的疲劳试验工作,我们遵照毛主席关于“中国人民有志气,有能力,一定要在不远的将来,赶上和超过世界先进水平”的教导,在教育革命实践中建立了一套压力容器疲劳试验装置,并已初步完成了一批试验,情况 In recent years, due to the pressure vessel design stress increases, so that the opening, take over and the local part of the connection is also increasing the local stress; the same time, with the large container and a variety of high-strength steel is widely used, so fatigue design issues Has attracted widespread attention both at home and abroad. In order to carry out the fatigue test of pressure vessels systematically in the future, in accordance with the guidance of Chairman Mao on "the Chinese people have ambition and ability, we must catch up with and surpass the advanced world level in the near future, In practice, set up a pressure vessel fatigue test device, and has initially completed a number of tests, the situation