China Neodymium And Ferrite Magnets Manufacturer & Supplier 
How to make a magnet temporarily demagnetize? This is an interesting question and I'm sure you're looking for the answer, so read on, it will help you.
Thermal demagnetization
Thermal demagnetization method is to use the principle of Curie temperature (critical temperature) of the magnet. Magnetic substances have a “critical temperature”, when the critical point is reached, the magnetism can disappear, below this temperature the magnetism can be restored, it should be noted that too high a temperature can make the magnetism of the magnet disappear forever.
High strength plated epoxy neodymium block magnets
Magnetic shielding
"Magnetic shielding" is a method of temporarily shielding the magnet's magnetic properties by using a certain material or method to reduce the leakage of the magnetic field or its effect on the surrounding environment. This type of shielding does not change the magnetic nature of the magnet, but rather temporarily suppresses the external manifestation of the magnetic field.
Magnetic shielding can be achieved through the use of highly permeable materials such as iron, nickel, cobalt or special alloys. The effectiveness of the magnetic shielding depends on the permeability of the magnetic shielding material as well as the thickness and shape of the material. Thicker shielding materials usually provide better magnetic shielding.
Machining industry in the use of magnetic table base, so that the magnetic disappearance of non-attractive way is the north and south poles with soft iron (conductive properties of strong) “short circuit”, the magnetic field of the magnet only through the soft iron winding, the external on the performance of the disappearance of magnetism; short circuit of the soft iron to move away from the magnet to the external and the performance of the magnetism.
Like our neodymium magnets, ceramic ferrite magnets, samarium cobalt magnets exported to other countries will be magnetically shielded before they can be safely transported to customers through logistics.
These are the 2 ways to make the magnet temporarily lose its magnetism, and the 2nd magnetic shielding solution is more recommended, when the magnetism is needed, you just need to remove the wrapped magnetic barrier material, which is more efficient and easy to operate.
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