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一、前言我厂制造的“TQFR-3000”发电机,在1975年-1976年两年中发生过12起磁极螺钉断裂,属于因柴油机飞车引起的过载断裂有一次,因氢腐蚀引起的延迟断裂有三次,其余8次都是疲劳断裂,12次螺钉断裂导致了11起东风4内燃机车的运行事故,螺钉的断裂成了发电机的突出质量问题被列为我厂牵引电机制造技术上的重大“攻关项目”。为了从多方面分析螺钉断裂原因,提出综合性防止措施,我厂从制造到使用现场,进行
First, the foreword I produced “TQFR-3000 ” generator, in the two years from 1975 to 1976, there have been 12 magnetic pole screw fracture, belongs to the diesel engine speed caused by overload and breakage once, due to hydrogen corrosion Delayed rupture three times, the remaining eight are fatigue fracture, 12 screw rupture led to 11 Dongfeng 4 locomotive running accident, the screw rupture has become a generator of outstanding quality problems are listed as my factory traction motor manufacturing technology The major “research project ”. In order to analyze the causes of screw fracture from various aspects and put forward a comprehensive prevention measures, I plant from the manufacture to the use of the site,