Research on corrosion defect detection method of power transmission tower square steel based on magnetic effect
The square steel of power transmission tower is prone to corrosion in long-term service,which leads to the reduction of safety and stability of local components and overall structure of the tower.Therefore,it is of great research significance to accurately detect and evaluate the corrosion defects of power transmission tower square steel to avoid the structural safety problems caused by corrosion.The existing tower corrosion defect detection methods are mainly based on manual evaluation,which has problems such as strong subjectivity and randomness.In addi-tion,some corrosion detection methods for ferromagnetic materials,such as ultrasonic testing,radiographic testing,eddy current testing,etc.,have the problems of high detection requirements and difficulty in accurately quantifying corrosion defects,and cannot be widely used in practical projects with complex environments.In order to solve the above problems,this paper studies a method for detecting corrosion defects of angle steel of transmission tower based on magnetization effect.Firstly,the corrosion process and magnetization principle of transmission tower angle steel are analyzed,and the spatial magnetic field distribution characteristics of corroded angle steel under magneti-zation effect are studied.Finally,the detection method of corrosion defects of transmission tower angle steel is pro-posed,and the example analysis and experimental verification are carried out.The results show that the method proposed in this paper can accurately evaluate and quantify the corrosion defects of the angle steel of the tower,and realize the accurate detection of the corrosion defects of the transmission tower.It has the advantages of good relia-bility and high detection efficiency,and is of great significance to protect the structural safety of the transmission tower and the stability of the power system.
corrosion detectioncorrosion degreemagnetic effectmagnetic field distribution
万方数据
维普
