锅炉过热器管爆管分析

Analysis of Bursting of Superheated Pipe on a Boiler

锅炉过热器管爆管严重影响锅炉正常运行，给生产带来损失。通过金相检验分析找出爆管原因：长期过热使管子产生蠕变裂纹、蠕变孔洞，最后导致爆管。

The bursting of superheated pipe on a boiler affects gravely normal operation of beiler, causesof bursting have been discovered through metallographic test and analysis: long-term overheat resists in creepfracture and creep cavity in pipe and leads to bursting of pipe finally.