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通过对浮头式热交换器管板上的紧固螺栓失效断口的分析,得出螺栓的失效主要来自H_2S引起的应力腐蚀,并对失效的防止提出了建议。
Through the analysis of the fracture of the fastening bolts on the floating heat exchanger tubesheet, it is concluded that the failure of the bolts mainly comes from the stress corrosion caused by H2S, and some suggestions are given to prevent the failure.