Next. Prev. I bet you didn’t know, a collector of refrigerator magnets is called a memomagnetist. That’s OK, I didn’t know it either! It is derived from the words memoriale (Latin for memory) and magnetis (Greek for magnetic).
Correspondingly, what type of magnet is a refrigerator magnet?
Fridge magnets are made of weakly ferromagnetic ceramics like barium ferrite or strontium ferrite.
Subsequently, question is, where is the magnet in a refrigerator? Most refrigerators have sheet steel doors and the magnetic field lines pass through the door metal from the north poles of the sheet magnet to the south poles, making the magnet stick to the refrigerator door.
Just so, why do refrigerators have magnets?
Some fridges have magnetic material in the rubbery strips on the inside edge of their doors, making the doors stick to the body of the fridge when the doors are closed, helping to create a good seal. Magnets stick to fridges because fridges are made of steel and steel is ferromagnetic.
How do they make refrigerator magnets?
A refrigerator magnet is made of powdered ferrite (iron rust) and a liquid binding agent of plastic or rubber. The two are heated, mixed together, and poured into a sheet mold which is then exposed to a strong magnetic field.