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对济南北郊热电厂 1台锅炉汽包内壁凹坑边沿的裂纹状况进行了检查。分析认为 ,裂纹属热疲劳所引起。经对裂纹进行补焊处理 ,取得了满意的效果
A check was conducted on the crack at the edge of the pothole wall of a boiler drum in Jinan North Thermal Power Plant. Analysis, the crack is caused by thermal fatigue. The crack welding repair, and achieved satisfactory results