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    Q235B钢原油储罐底板腐蚀穿孔原因

    Corrosion Perforation Causes of Bottom Plate for Q235B Steel Crude Oil Storage Tank

    • 摘要: 某Q235B钢储罐底板发生腐蚀穿孔泄漏事故。通过宏观分析、微观分析、化学成分分析、力学性能试验、金相检验等方法,对储罐底板腐蚀穿孔原因进行了分析。结果表明:储罐底板的涂层因质量较差发生鼓包后破损,在破损点发生了氧腐蚀,进而导致储罐底板腐蚀穿孔。

       

      Abstract: A Q235B steel storage tank bottom plate corrosion perforation leakage accident occurred. The corrosion perforation causes of storage tank bottom plate were analyzed by means of macroscopic analysis, microscopic analysis, chemical composition analysis, mechanical property test and metallographic examination. The results show that the coating on the bottom plate of storage tank was damaged after bulging due to poor quality, and oxygen corrosion occurred at the damage point, which led to corrosion perforation of the storage tank bottom plate.

       

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