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大型对称平衡型压缩机连杆螺栓的断裂事故,不外乎是在螺栓中部的最粗部位产生明显的摩擦耗蚀特征的疲劳裂痕所造成的,这种摩擦耗蚀点呈褐色薄层;在螺栓麦面这种有害的耗蚀深度有时竟达0.15毫米。从所进行的研究表明,这种摩擦耗蚀在大多数装有厚壁轴衬的M40系列压缩机的连杆螺栓上都有这种痕迹,但不是在整个螺栓上都有这种痕迹而只有小部份遭受这种耗蚀。
Large symmetrical balanced compressor connecting rod fracture, nothing more than the most central part of the bolt in the middle of the most significant frictional fatigue characteristics caused by fatigue cracks, the friction erosion point was brown thin layer; in This detrimental depth of erosion of bolted wheat noodles is sometimes as small as 0.15 millimeters. From studies conducted, it has been shown that this frictional erosion has such marks on the connecting rod bolts of most M40 series compressors fitted with thick-walled bushings, but not on the entire bolt and only A small part suffers from this erosion.