1. Install the magnet farther away from the object to be attracted. It can be separated by non-metallic materials, and the magnetism will become smaller;
2. Cut the magnet with wire Cut it and reduce the size, and the magnetism will become smaller;
3. The demagnetizer removes the magnetism, and then uses the magnetizer to magnetize according to your own requirements; it is recommended not to burn or smash it, otherwise the magnet The xing will disappear suddenly, but there is no process of gradually getting smaller, and it is easily damaged. You can reverse magnetize it by placing a magnet in the opposite direction for a period of time so that they repel each other, or by wrapping a wire around it so that the direction of the current's magnetic field is opposite to that of the magnet.