Dl-35 electromagnet is a device for generating electromagnetism by electrification. The external winding of an iron core is a conductive winding in relation to its power. The current current in the coil is magnetic like a magnet. It is also called an electromagnet. We usually make it into strips or hoofs to make the core more magnetized. In addition, in order to make the electromagnet power immediately degaussing, we often use degaussing faster soft iron or silicon steel materials to make. Such an electromagnet is magnetic when it is energized, and then disappears when the power is cut off. Electromagnet is widely used in our daily life. Because of its invention, the power of generator has been greatly improved.