Simply put, magnets show magnetism due to the regular orientation of molecular currents within the molecules of the magnet substance, while magnets lose their magnetism at high temperatures because the intense thermal motion makes the orientation of molecular currents disorderly. High-temperature magnet manufacturers have a thorough research on magnets.
Analysis of high-temperature magnet manufacturers In terms of material composition, all materials are composed of its molecules. Molecules are made up of atoms, and atoms are made up of nuclei and electrons, and electrons are constantly spinning and revolving around the nucleus. These two movements of electrons will produce magnetism. However, manufacturers of high-temperature magnets claim that the magnetic effects inside the material cancel each other out due to their different directions of movement and disorder. Therefore, the substance does not exhibit magnetism under normal conditions.

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However, manufacturers of high-temperature magnets claim that under the action of an external magnetic field, the electrons originally moving inside the iron, nickel, and cobalt ferromagnetic materials, one by one, act like well-trained soldiers, and hear the command "stand upright-look to the right". , They are arranged neatly at once. At this time, the magnetic effect produced by the rotation of the electrons is consistent with the direction of the external magnetic field, and these substances appear magnetic. The electrons in non-ferromagnetic materials such as copper, aluminum, lead, etc., despite the strong magnetic field, seem like a group of disobedient naughty children who refuse to obey the "password" and "line up". High-temperature magnet manufacturers are still free. The earth is moving in disorder, so there is no magnetism. To
High-temperature magnet manufacturers explained that the reason why magnets can attract iron nails is that when a magnet with magnetism approaches the iron nails, the magnetic field of the magnet magnetizes the iron nails and attracts each other, and the iron nails are firmly "sticked" to the magnet. Together. However, when the temperature of magnets and magnets increase, the thermal movement of molecules inside them becomes faster and faster. As a result, more and more electronics refuse to obey the "password" of "queue". When the temperature of high-temperature magnet manufacturers rises to a certain value, the violent molecular thermal motion finally completely destroys the regularity of the direction of the electron motion, and the magnetism of the magnet disappears. Metallologists call the temperature at which magnets and magnets completely disappear as "Curie temperature." The Curie temperature of steel is 770°C.
Now, you should know why the red-burning magnet cannot hold the nail firmly. Because of the reddish magnet, the temperature generally exceeds 800°C. Of course, high-temperature magnet manufacturers claim that after the temperature drops, if we re-magnetize the magnet, it can still "work" again.