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对在装配过程中发生断裂的10.9级高强度螺栓进行各种检测和分析,找出了螺栓料心部 裂纹是引起螺栓断裂的主要原因。
Various tests and analyzes were carried out on the 10.9 grade high strength bolts that broke during the assembly process to find out that the core part of the bolt material was the main cause of the bolt fracture.