Our Customized NdFeB Magnet products have become the industry leader with excellent production technology and good reputation!
NdFeB magnets can also be used in the quality inspection of hardware products. NINGBO DEKO MAGNETIC ELECTRONICS CO.,LTD will introduce to you:
1. First observe the appearance of the outline, pay attention to whether the color of the NdFeB magnet frame is the same as the profile, whether the color of the magnet is uniform, and whether the distribution is reasonable. The surface of NdFeB magnets is usually shiny and tough.
2. Prepare a pure copper pipe as thick as possible. Then prepare a NdFeB magnet and put it into the copper tube.
3. The welding of the strong magnet depends on whether the welding position is flat, whether there are cracks, whether the inner and outer corner seams are clean and beautiful, and the difference between the diagonal size and the diagonal size of the strong magnet measured with a square ruler should not exceed 3 mm. The smaller the diagonal difference, the finer the display process, which is also beneficial for installation.
4. When the NdFeB magnet goes into the copper tube, it actually falls slowly instead of getting faster and faster as usual.
The hardware quality of the strong magnet also has a certain influence on the life of the magnet. The hardware used should look thick, the surface should be glossy, the protective layer should be dense and scratch-free, and most importantly, the opening should be flexible.
5. Adjust the camera lens and watch the magnet drop very slowly, as if there is something preventing it from falling.
6. The principle is: the cross section of the copper tube is relatively thick. When the magnet is dropped, the copper tube will generate a current, but the current generated will create a magnetic field and prevent the magnet from falling rapidly, which is the Lentz theorem often mentioned in physics. If the copper tube was infinitely long, it would theoretically move at a constant speed.
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