How To Detect The Presence Of Magnetic Particles In Magnetic Powder Brakes?

The working principle of magnetic powder brake is matched by a certain magnetic powder. Without magnetic powder, the brake is not called a magnetic powder brake. Magnetic powder has the characteristics of high magnetic induction strength, high magnetic permeability, low remanence, low coercivity, high Curie point, and large transmission torque. Magnetic powder has attracted people's attention as a high-density recording material. Disadvantages such as being difficult to disperse in the pulp have not been put into practical use.

Therefore, when making a purchase of magnetic powder brakes, magnetic powder is also a direction to choose when making a purchase. You can see whether the magnetic powder detection has a phenomenon of magnetic leakage. Magnetic powder clutches and magnetic powder brakes have magnetic powder and granular magnetic powder. Therefore, how to detect magnetic powder is the key part of selecting magnetic powder clutches and magnetic powder brakes. The existence of magnetic powder is not good, it is a good machine, and the quality of magnetic powder must be tested at the same time.

First, the material of the workpiece and the roughness of the surface of the workpiece will also induce magnetic leakage. The production of magnetic leakage is related to the shape of the defect, the surface distance of the defect, and the relative position of the defect and the magnetic lines of force. The magnetic powder thus forms a defect display. These factors will affect or reduce the accuracy of the magnetic powder detection.

Second, magnetic particle detection is extremely sensitive to the detection of workpiece surface defects. The principle of magnetic particle detection is that when materials or workpieces are magnetized, there are cracks, ruptures and other defects on the workpiece surface or surrounding surfaces, and leakage will occur in defective places. The magnetic field, such as the higher the degree of surface defects on the workpiece, the detection sensitivity will rapidly decrease to zero. After the parts are magnetically powdered, not all defects can produce magnetic leakage.

The role of magnetic powder in the brake is huge, so the detection scheme can be used to check the magnetic powder when the user fails to use the brake to see if it has any effect. At this point, you can help users get some help when performing repairs. At the same time, the magnetic powder brake has been relieved.