The results showed that serious boiler scale caused long term overheat and creep of boilerplates which resulted in the drum shape deformation of cylindrical body of boiler.
结果表明，锅炉严重结垢使得锅筒底部钢板长期过热产生蠕变，从而导致锅炉锅筒产生鼓包变形。
2
And has carried on the comparison to three kind of tube plates stress distribution situations, has provided the certain reference for the industry boiler tube plate design calculation.
并对三种管板的应力分布情况进行了比较，为工业锅炉管板的设计计算提供了一定的参考依据。
3
Ideal drilling machine for tube-plates, baffle plates and flange, in petrochemical, boiler and air-condition industries, also for joint plates in building, bridge, iron tower, etc.