Magnetic particle testing

Metal structures are used in various fields – from construction to metallurgy. But regardless of the specific direction of activity, it is extremely important to ensure that the structures and their elements are in good condition. To do this, it is periodically necessary to carry out flaw detection in order to ensure the former reliability of metal structures or to notice dangerous defects in time.

The best way to monitor the state of metal structures is magnetic particle inspection. This method of non-destructive testing allows for high-precision testing of industrial structures for the presence of various defects. The purpose of the method is to identify scattered magnetic fluxes that often occur in metal structures and can cause enormous damage. This method allows you to identify both superficial and deep flaws in metal products that are not determined by other methods.

How does magnetic particle testing work?

Objects are checked for the presence or absence of pores, cracks, corrosion, lack of penetration, voids, all types of corrosion, discontinuities in the material. Diagnostics of the equipment is always carried out without damaging it. Modern magnetic flaw detectors provide reliable results, they are easy to use, compact and manoeuvrable.

The essence of the method: the tested area of ​​the object is magnetized and a special powder or suspension is applied. If there is a defect in the area under study, the thickening of the powder is easily traced. The pattern formed during the check is the structure of the defect. From the drawing, you can determine the exact location and size of the defect in the metal.

Here are just a few of the main benefits of this effective method:

• High reliability of control;
• Visualization of control results;
• The ability to control almost any equipment, since most often metal structures are made from ferromagnets;
• Low price;
• Accurate location of defects;
• There is no need to destroy structures;
• Promptly;
• Precise detection of defect thickness and depth.