Customized rectangle magnet for window magnetic shutter

What's Block Ferrite Magnet?

A block ferrite magnet is a rectangular-shaped magnet made of ferrite material. Ferrite, also known as Ceramic Magnet, is a type of Permanent Magnet composed of iron oxide and other metallic elements. Block ferrite magnets are commonly used in various applications such as motors, speakers, and magnetic separators. They have a high resistance to demagnetization and are relatively inexpensive compared to other types of magnets. Block ferrite magnets can be magnetized in different directions, making them versatile in various applications.

Anisotropic Ferrite Magnet

The Anisotropic Ferrite Magnets have a preferred direction of magnetisation within the structure and have strongest magnetic properties along that direction (they are more powerful than Isotropic Ferrite Magnets). There are two chemical varieties of ferrite magnet.

characteristic 

The powder metallurgy method has low remanence and low recovery magnetic permeability. High coercivity, strong anti-demagnetization ability, especially suitable for dynamic working conditions of magnetic circuit structure. Hard and brittle material, can be used for emery tools for cutting processing. The main raw material is oxide, so it is not easily corroded. Operating temperature :-40℃ to +200℃. 

Ferrite magnets are divided into anisotropic (heterotropic) and isotropic (isotropic). The magnetic properties of the isotropic sintered ferrite materials are weak, but they can be magnetized in different directions of the magnet. Heteromorphic sintered ferrite permanent magnet materials have strong magnetic properties, but only along the intended direction of magnetization of the magnet. 

Physical property 

In the actual production of ferrite magnets, raw materials with good chemical composition may not be able to obtain ferrite magnets with good properties and microstructure sometimes, because of the influence of physical properties. The listed physical properties of iron oxide include mean particle size APS, specific surface area SSA, and loose density BD. As iron oxide accounts for about 70% in the formula of manganese zinc ferrite magnet, its APS value has a great influence on the APS value of ferrite magnet powder. Generally speaking, the APS value of iron oxide is small, and the APS value of ferrite magnet powder is also small, which is conducive to speeding up the speed of chemical reaction. However, the APS value should not be too small considering that the fine particle of powder is not conducive to post-process pressing and sintering easy crystallization. Obviously, when the APS value of iron oxide is too large, only the diffusion reaction of spinel phase can be carried out in the pre-firing process due to the large particle size, and the grain growth process can not be further carried out. This inevitably leads to the increase of activation energy required during sintering, which is not conducive to solid phase reaction. 

Magnetic steel is a type of steel that has been treated to be magnetic, typically by adding elements like nickel, cobalt, or manganese. It is a ferromagnetic material that can be magnetized and retains its magnetism even after the magnetic field is removed.

A magnet, on the other hand, is a material or object that produces a magnetic field. Magnets can be made from a variety of materials, including magnetic steel, but can also be made from other materials like iron, cobalt, and nickel. Magnets have a north and south pole and can attract or repel other magnets or magnetic materials.

In summary, magnetic steel is a type of steel that can be magnetized, while a magnet is an object that produces a magnetic field. Magnetic steel is often used to make magnets, but magnets can also be made from other materials.

As an AI language model, I do not have the ability to provide images. However, I can describe the irregular shape of a ferrite magnet. Ferrite magnets can come in various shapes and sizes, and their irregular shape can be due to the manufacturing process or the specific application they are designed for. Some common irregular shapes of ferrite magnets include rectangular, square, circular, horseshoe, and custom shapes. These magnets may also have chamfered or rounded edges, or may be segmented or have holes or notches to accommodate specific applications.

The main performance and grade parameters of sintered permanent magnet ferrite