Hard Ferrite Magnet Ring Shaped for Speaker

Ferrite magnet characteristics

1. High coercivity: Ferrite magnets have a high coercivity, which means they are resistant to demagnetization. This makes them ideal for applications where a strong and stable magnetic field is required.

2. Low cost: Ferrite Permanent Magnets are relatively inexpensive compared to other types of magnets, making them a popular choice for a wide range of applications.

3. Good temperature stability: Ferrite magnets have good temperature stability and can maintain their magnetic properties at high temperatures.

4. High resistance to corrosion: Ferrite magnets are highly resistant to corrosion, making them ideal for use in harsh environments.

5. Low magnetic strength: Ferrite magnets have a lower magnetic strength compared to other types of magnets such as neodymium magnets.

6. Brittle: Ferrite magnets are brittle and can crack or break easily if dropped or subjected to impact.

7. Low energy density: Ferrite magnets have a low energy density, which means they have a lower magnetic strength per unit volume compared to other types of magnets.

8. Resistance to demagnetization: Ferrite magnets have a high resistance to demagnetization, which means they are less likely to lose their magnetic properties over time.

There are several methods of demagnetizing a magnet, including:

1. Heating: Heating a magnet to a high temperature can cause its magnetic domains to become disordered, resulting in demagnetization.

2. Hammering: Repeatedly striking a magnet with a hammer can also disrupt its magnetic domains and cause demagnetization.

3. Alternating current: Passing an alternating current through a coil around the magnet can create a magnetic field that opposes the magnet's field, gradually demagnetizing it.

4. Shielding: Placing a magnet inside a shield made of a material that conducts magnetic fields, such as copper or aluminum, can block the magnet's field and cause it to gradually demagnetize.

5. Exposure to a strong magnetic field in the opposite direction: Placing a magnet in a strong magnetic field in the opposite direction can cause its magnetic domains to realign in the opposite direction, resulting in demagnetization

Material: Magnets are made from different materials, such as neodymium, ceramic, and alnico. Each material has its own properties, such as strength, temperature resistance, and durability. Choose a material that is suitable for the application.

Isotropic Ferrite Magnets, Anisotropic Ferrite Magnets, Custom Anisotropic Ferrite Magnets, Anisotropic Ferrite Magnets

The available sizes of Ferrite Ring Magnet: