How to Remove Iron Powder?

[KimberlyLynn]

Use a small piece of kneaded dough and roll it back and forth on the magnet with iron powder to stick and remove the iron powder. Using glass adhesive tape to stick and remove the iron powder from the magnet also works well. You can switch to an electromagnet. If there is residual magnetism after power failure, apply an appropriate amount of reverse excitation to the electromagnet through the control circuit to completely demagnetize it, and the iron filings will naturally fall off.