The results showed that the main reasons of reductor shaft fracture are weld cracks, slag inclusions and massive inclusions which exist in the structure of the reductor shaft.
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释义
结果发现断轴组织内部存在焊接裂纹、夹渣及块状夹杂物等缺陷,这些缺陷形成微小裂纹源,使减速机轴在弯曲旋转作用力下发生疲劳断裂。
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