Semi-Automatic Eddy Current Detection System for Metal Tubes and Bars
Semi-Automatic Eddy Current Detection System for Metal Tubes and Bars
2025-05-29
Auxiliary equipment for off-line semi-automatic eddy current flaw detection of metal tubes and bars. It is equipped with a transmission power device, and adopts a three-jaw automatic centering probe box, adjustable stroke cylinder, end cutting device and spray marker, featuring continuous and smooth operation and small floor space, suitable for various narrow sites.
The main machine can use manual auxiliary feeding or be matched with a user-made loading/unloading rack and front/rear raceways to form a fully automatic off-line eddy current flaw detection transmission device. It has the advantages of low investment and quick results.
Flaw detection is applied to detect surface, near-surface, inner surface and internal defects of various metal bars, seamless tubes, welded tubes and strips (including metal materials with circular, hexagonal, rectangular and square cross-sections) offline or online. Usually, through-type probes are used, and the tested materials are linearly transmitted through the inner hole of the through-type probe for detection; online eddy current flaw detection of high-frequency welded pipes can also use saddle-type magnetic saturators and saddle-type probes (usually adopted when the pipe diameter is large) to detect weld quality, including defects such as incomplete penetration, inclusions, sand holes, air holes, internal burrs and internal weld tumors.
When the surface area of the tested material is large or the shape is complex (such as crankshafts, automotive parts, steam turbine blades, etc.), and high requirements are required (such as the central hole of a steam turbine shaft, metal parts, aircraft bolt holes, etc.), point probes are required, and manual or automatic scanning devices are used to achieve point-by-point scanning detection.
Different detection methods require different auxiliary equipment. It is also possible to adapt to local conditions, make full use of existing equipment in the production site, and design special auxiliary devices to achieve the purpose. For mobile sites, simple and portable auxiliary devices are usually used, or manual methods can be adopted.