分析了影响发动机用高温合金紧固件高温性能的主要因素,通过对国内外紧固件的对比试验研究及数据的分析,提出了国内自锁螺母出现咬死、粘结等现象的主要原因,并给出了解决问题的基本建议。 The main factors influencing the high temperature performance of high temperature alloy fasteners for engine are analyzed. By comparing the domestic and foreign fasteners and the data analysis, the main causes of the phenomena of seizure and sticking of self - And given the basic suggestions to solve the problem.