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Degaussing method for strong magnetic materials

The first step: prepare a pot of fire;
The second step: the strong magnet on the fire for 5-10 minutes;
The third step: After cooling, put it together with the iron block and found that the strong magnetism lost its magnetism;
Principle explanation: Strong magnetic material belongs to high temperature resistant material, the temperature is below 80 degrees will not lose magneticity, if we put it on the fire and bake on 5-10 minutes, then the heat is 100 degrees, let the magnetic material in the The iron atoms were confused by the original orderly arrangement. At this time, they lost their magnetism. They were put together with iron pieces to test the presence or absence of magnetic properties.

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