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汽化器空气总管在拆卸过程中发现断裂。采用断口分析方法,对其断裂原因进行分析。结果表明:汽化器空气总管断裂性质为疲劳断裂,疲劳起源于汽化器空气总管外壁表面;卡箍与汽化器空气总管的装配不当是导致其疲劳断裂的主要原因。
The carburetor air manifold was found broken during disassembly. Fracture analysis method was used to analyze the fracture reason. The results show that the fracture of the air manifold of the carburetor is fatigue fracture, and the fatigue originates from the outer wall of the carburetor air manifold. The improper assembly of the ferrule and the carburetor air manifold is the main cause of the fatigue fracture.