Forging forming -- English · 2023年8月2日 0

Forging detection technology secrets: to ensure product quality and safety

The detection technology of forgings is very important to ensure the quality and safety of products. The following are some commonly used forgings inspection techniques: X-ray inspection (RT) : X-ray inspection is a non-destructive inspection technique that detects internal defects in forgings, such as pores, cracks, inclusions, etc., by using X-rays to penetrate the object and form an image on the photosensitive film. This technique can provide detailed information about defects and assess their impact on forgings performance. Ultrasonic inspection (UT) : Ultrasonic inspection uses the propagation properties of high-frequency sound waves in forgings to detect internal defects. The speed at which sound waves travel through the material and the reflective properties can provide quantitative information about defects, such as size, location and shape. This technique is often used to detect defects such as pores, inclusions and cracks in forgings. Magnetic particle inspection (MT) : Magnetic particle inspection is a commonly used surface defect detection method. It is based on changes in the magnetic field to find cracks, inclusions and other magnetic defects on and near the surface of the forging. By applying a magnetic field to the surface of the forging and spreading magnetic powder on it, the accumulation of magnetic powder at the defect can be observed, thus detecting the location and shape of the defect. Eddy current testing (ET) : Eddy current testing uses the principle of eddy current induction to detect surface and near-surface defects of forgings. By conducting an alternating current on the forging surface, an alternating magnetic field is generated, and the eddy current induction changes when a defect is present. According to the amplitude and phase of the change, the location and nature of the defect can be determined. Magnetic Inspection (MPI) : Magnetic inspection is also a method commonly used for surface and near-surface defect detection. It is based on the principle that after applying a magnetic field, the defect will change the magnetic field distribution on the surface of the forging. Cracks and other surface defects on the surface of the forgings can be found by coating magnetic powder or spraying fluorescent pigments, and by observing magnetic powder accumulation points and color changes after applying a magnetic field. These forgings inspection technologies work together in practical applications to ensure product quality and safety. According to the material, shape and application requirements of the forging, you can choose the appropriate detection method or combine a variety of methods for comprehensive detection. At the same time, it is also necessary to rely on professionals to correctly operate and interpret the results to ensure accuracy and reliability.