某常减压装置加热炉1Cr5Mo炉管已使用18 a,为了评估炉管继续运行的安全性,截取了处于较恶劣工作环境中的一段炉管进行了组织性能检测及评估。结果表明,炉管组织已发生明显劣化,直管段组织为中度球化,弯管段组织介于中度球化到完全球化之间,炉管常温力学性能变化不大,炉管仍可继续安全使用一个生产周期。 In order to evaluate the safety of the continuous operation of the furnace tube, a section of furnace tube in a harsh working environment was intercepted and tested for tissue performance. The results show that the furnace tube structure has been significantly deteriorated, the structure of the straight tube section is moderately spheroidized, the microstructure of the bend section ranges from moderate spheroidization to complete spheroidization, and the mechanical properties at room temperature of the furnace tube have little change. Continue to safely use a production cycle.