Regarding ceramic magnets, many people do not know what kind of magnets it belongs to? Today, this article will introduce to you the material types, shapes, applications and performance parameters of ceramic magnets.
Ceramic magnets, also known as hard ferrite magnets, are composed of barium or strontium and were developed in the early 1960s as an alternative to more expensive metal magnets. These magnets are very hard, brittle, and have lower energy characteristics than other magnetic materials. However, ceramic ferrite magnets have been widely used due to their excellent anti-demagnetization, corrosion resistance and superior price advantage.
Several types of ceramic ferrite
Sintering or injection molding to manufacture ferrite magnets. These magnets can be anisotropic and isotropic. The anisotropic gradation is oriented in the manufacturing direction and must be magnetized in that direction. An isotropic gradation has no directionality and can be magnetized in any direction.
Ceramic magnets can maintain 45% of their room temperature magnetic specifications at 350 degrees Fahrenheit. The degradation is almost linear with increasing temperature and the change in magnetization is essentially reversible up to about 840°F, at which temperature the ceramic magnet is completely demagnetized. Ceramic magnets exposed to temperatures up to 1800 degrees Fahrenheit can be re-magnetized for continued use. Above 1800 degrees Fahrenheit, however, the change is irreversible.
Ceramic Grade 8 magnets have excellent peak energy product and greater resistance to demagnetization than Ceramic 5 magnets. They must also be magnetized in their orientation.
The grades and properties of ceramic magnets are shown in the table below
The magnetic holder can manufacture various shapes of ceramic magnets, such as arc (magnetic tile), rectangle, square, ring, and cylinder. If the shape you are looking for is not listed below, you can contact us for customization.
Application of Ceramic Magnets
Horn (speaker)
DC brushless motor
Magnetic resonance imaging
Magnetic separation
Magnetic assemblies designed for lifting, holding and recycling
Reed switch
Alarm
Fire-proof door
Optical optoelectronics
Instrumentation
...
More ferrite applications are recommended to read 《Applications of hard ferrite magnet》
Related ceramic magnet columns;
Sintered Ceramic Ferrite Magnets
Injection Molded Ferrite Magnets
Recommended articles related to ceramic magnets;
This is a special magnetic ring for magnetic encoder, the material is injection molded ferrite, the surface has a raised structure, the outer diameter is 34.1mm, the hole is 18mm, the total thickness is 3mm, single side multi-pole magnetization (62 and 64 poles)....
Buy thin ring magnets, customize ultra-thin ring neodymium magnets, you can contact China's pneumatic magnet manufacturers for quotation, we have a great price advantage for small precision strong magnets, many customers in the United States, Turkey and other countries choose to cooperate with us, today's size of the outer diameter of 9.2mm, inner diameter of 5mm, thickness of 1mm, galvanized surface...
This product is a high-performance 8-pole ring magnet with radial magnetization. The material is ferrite. It belongs to a ferrite multi-pole magnetized ring. The outer diameter of the magnet is 75mm, the inner diameter is 51mm, and the height is 35mm....
The sample is M10 countersunk hole square NdFeB magnet, the length and width are 75mm, thickness is 25mm, with strong magnetic strength, specializing in heavy industry, machinery and equipment, salvage, etc., welcome to bring quantities to consult the price....
Sample display is a N52 grade ultra-thin rectangular block neodymium magnet, length size 8mm, width 1.8mm, thickness is only 0.6mm, can be affixed with adhesive backing, scribing marking, although the size is small, but still has a certain degree of magnetism, suitable for use in a number of precision instruments, meters, handicrafts, toys....
This is ring-shaped neodymium magnet with an outer diameter of 4mm, a thickness of 4mm, and a middle hole of 1.6mm. It is N48 grade, with a surface magnetic force of about 3900 Gauss. It is produced and photographed by the courage magnet manufacturer carrich. If you are interested in this product, please leave us a message or send us an email....
Buy small hole radial magnet ring, high precision radial cylindrical magnet with small hole, welcome to contact Courageous Magnet Manufacturer, we have many customized cases, such as the one you see now, belongs to the motor radial magnet, outer diameter 2.5mm, center hole 1mm, height 4.8mm, N48H grade...
This product is a rectangular pot magnet with a hole, usually a counterbore. It is used together with screws. There are one with one counterbore and two with two counterbore holes. It is suitable for fishing, lifting metal objects, kitchen and bathroom hooks, etc., rectangular Can magnet specifications are customized according to customer requirements. Please contact us for prices....