Application of Steel Pipe Demagnetization Technology in Construction
The residual magnetism of steel pipes affects the quality of subsequent deep processing. This article provides a detailed introduction to the principles, advantages and disadvantages of three commonly used methods, namely DC demagnetization, AC demagnetization, heating demagnetization, and composite demagnetization. It summarizes the practical experience of demagnetization and provides principles and methods for construction sites. 0. Introduction To ensure quality, steel pipe manufacturers use magnetic flux leakage and eddy current methods to inspect the pipe body and magnetic particle methods to inspect the pipe ends. The processes of magnetic flux leakage, eddy current, and magnetic particle inspection are all magnetization, […]
