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Leakage magnetic field detection refers to the formation of a leakage magnetic field on the surface or near surface of a ferromagnetic material due to defects after magnetization.

Magnetic Flux Leakage Testing does not require preprocessing of the test object, is easy to obtain detection signals, has a high degree of automation, and can detect different types of defects.

Magnetic flux leakage testing is a type of non-destructive testing technology that belongs to indirect measurement techniques.

Magnetic particle testing is called "magnetic flux leakage testing" because this technology is based on the leakage of magnetic flux on the surface or near the surface of the material.

Magnetic flux leakage testing improves work efficiency and reduces operational risks and equipment downtime costs

Magnetic Flux Leakage (MFL) technology plays an indispensable role as the foundation for ensuring the safe operation of pipelines.

Southwest Oil and Gas Field has achieved multiple important results in pipeline magnetic leakage internal detection through independent innovation and technological breakthroughs, which not only improves the technical level of domestic oil and gas field enterprises, but also sets an example for the global industry

The first proposal for international standards for magnetic flux leakage detection proposed by my country was successfully approved and received support from many countries including Italy, Brazil, Argentina and South Korea.