What Is a Magnetic Particle Inspection?

Magnetic particle inspection uses magnetic particles as a display medium to observe defects. According to the type of magnetic powder medium applied during magnetization, the detection methods are divided into wet and dry methods; according to the time when magnetic powder is applied to the workpiece, the inspection methods are divided into continuous method and residual magnetic method.

Magnetic particle detection can only be used for detection

Wet and dry

Magnetic particles are suspended in oil, water or other liquid media. The method is called wet method.

A Brief History of the Development of Magnetic Particle Detection Technology

1950s, some large

1 suitable for detection

Advantages: non-destructive, simple and convenient operation, low detection cost, correct

Introduction to Magnetic Particle Detection

Edited by the application committee of "National Defense Technology Industry Nondestructive Testing Personnel Qualification and Certification Training Materials"

Machinery Industry Press

Magnetic particle detection content

This textbook comprehensively and systematically reflects the requirements of GJB 9712-2002 "Nondestructive Testing Personnel Qualification and Certification" and "National Defense Technology Industry Nondestructive Testing Personnel Qualification and Certification Exam Outline" requirements, including nondestructive testing I, II, III The training content of the first-class personnel is based on the content of the second-level requirements. It focuses on the depth and breadth of the third-level requirements and emphasizes practical application. ^[3]