Introduction of Block ferrite magnets
No tooling needed, we can cutting it according to your requirement.
Ferrite Magnet is a magnet compounded by magnetic powder and high polymer materials through the special craft.
It is superior to the sintered magnet in aspects of magnet shaping, size precision, flexibility etc. It may make the handed, circular, various geometric figures, sheet, coiled material (max. Width 780MM, thickness 0. 25-8MM, indefinite length ) according to the consumer's requirements. Its surface may implement UV oil coating, spray lacquer, printing, lamination, double-faced adhesive tape, PVC processing and so forth. The products are widely applicable for the small-size precise motor, generator etc in aspects of the drive equipments; Loud-speaker, earphone, microphone, sound pick-up etc in aspects of the acoustic facilities; Relay, switch, sensor, instrument and meter and so no in aspects of the communication installation etc. The suction magnet is mainly used for the advertisement propaganda, electric refrigerator door sealing strip, toy and so forth. The correcting magnet is used in TV image tube, magnetic coupler, electronic lock etc.
Ferrite / Ceramic permanent magnets are technically known as hard ferrite materials (when exposed to a brief external magnetic field, the material retains magnetism due to having high coercivity, Hc). They are not the same as soft ferrite materials as used in transformer cores (which do not retain magnetism after exposure to a brief magnetic field because soft ferrite materials have low coercivity). The high coercive force of Ferrite Magnets means they are classified as hard materials, like all the other permanent magnets.
Product Specifications
These ferrite ceramic block magnets come in a very high quality. The block magnets tolerate working temperatures up to 250 degrees Celcius and they have high resistance against corrosion. Ceramic magnets have a fairly high magnetic strength and are often used for door keepers, separators, toys etc.
Magnetized axially in standard range but can also be produced with radial dual pole or multipole
Ceramic block magnets comes in isotropic and anisotropic versions
Max temperature: 250 °C
Tolerance L: + 0.6 / - 0.6 mm
Tolerance W: + 0.4 / - 0.4 mm
Tolerance H: + 0.5 / - 0.2 mm
Advantages of Block ferrite magnets
Low cost
Ferrite magnets are the most cost-effective permanent magnet option available.
Good magnetic strength
These magnets have good magnetic strength and are suitable for many common applications.
High resistance to corrosion
Ferrite magnets are highly resistant to corrosion and do not require coating or plating.
Wide range of shapes and sizes
Ferrite magnets can be made in a wide range of shapes and sizes to fit various applications.
How Are Block Ferrite Magnets Manufactured?
The manufacturing process of ferrite magnets involves several steps. It starts with the raw material products – such as iron-oxygen compounds – being ground into a fine powder.
The powder is then heated to 1,000 °C, mixed and dried and then pressed into the shape of a raw magnet. However, the ferrite blank only becomes magnetic after it has gone through the so-called sintering process. The substances in the powder are heated and fused together in this way. Then the blanks are ground, polished and then magnetized. An external magnet brings the magnetic force of the metallic materials in the blank into the so-called preferred orientation.
After this process has been repeated, the ferrite magnets are finally ready for further processing.
Block Ferrite Magnets Uses and Applications
Most common applications for Ferrite Magnets are the following:
- High Temperatures Environments
- Humid/Wet/Outdoors Environmets
- Ectronic industry
- Fridge magnets
- Micro-wave devices
- Loudspeakers
- Pot magnets
- Deferization: removal of metallic parts from powders or materials
- Motors, generators, alternators
- Medical applications
- Magnetic lifters.