Applied To Fine Permanent Magnet Ferrite In Advanced Automotive Motors

Company profile:
The company boasts the first domestically developed servo fully-automatic wet press oil press machine and the first dual-track roller kiln in the nation. It also possesses the capability for independent design, development, and processing of various types of molds.
The primary business of the company focuses on sintered ferrite permanent magnet components, encompassing automotive motors, motorcycle motors, general machinery motors, household appliance motors, household fan motors, variable frequency motors, water pump motors, and more. These products are widely used in the automotive, motorcycle, office equipment, power tools, household appliances, and fitness equipment industries.

 
What is permanent magnet ferrite?
 
Permanent magnet ferrite is a kind of magnetic ceramic material, composed of iron oxides and rare earth elements. It has a high magnetization and coercivity, so it is widely used in the manufacture of various permanent magnet devices, such as magnets, motors and sensors. Permanent magnet ferrite has good corrosion resistance and high temperature resistance, so it has been widely used in industrial and scientific fields.
 
Permanent magnet ferrite is a type of magnet that is made from a material called ferrite, which is a type of ceramic compound composed of iron oxide (Fe2O3) combined with other metallic elements such as barium, strontium, or lead. This combination of materials creates a magnetic material with strong permanent magnetism. Permanent magnet ferrite is commonly used in various applications such as electric motors, speakers, and magnetic assemblies.
What's the application of Xinheng's permanent ferrite magnets?
 
Xinheng mainly manufactures the following types of ceramic arc segment magnets:

• Motors and generators: Permanent magnet ferrites are commonly used in the manufacture of various types of motors and generators, including wind turbines, electric vehicle drive motors, and motors in medical equipment. Because permanent magnet ferrite has high permeability and stable magnetic properties, it can improve the efficiency and performance of motors and generators.
• Magnetic sensors: Permanent magnet ferrites can be used to produce various types of magnetic sensors, such as speed sensors, position sensors, Angle sensors, etc. These sensors are widely used in automotive, industrial automation, aerospace and other fields.
• Magnetic material application: permanent magnet ferrite can also be used to manufacture various types of magnetic materials, such as magnets, magnetic adsorption materials, etc. These materials have important applications in household appliances, medical equipment, magnetic products and so on.
• Magnetic energy storage components: permanent magnet ferrite can also be used to manufacture magnetic energy storage components, such as transformers, inductors, etc. These components play an important role in power systems, communication systems, and electronic equipment.
• Other applications: permanent magnet ferrite can also be used in magnetic recording materials, magnetic refrigeration materials and other fields, with a wide range of application prospects and market demand.

PHYSICAL PROPERTIES OF SINTERED FERRITE MAGNETS

 

 
What's the feature of ceramic strontium ferrite magnet made by wet compression molding?
 

• Composition - Contain strontium ferrite (SrFe12O19) as the primary magnetic material. Strontium ferrite has good magnetic properties and is inexpensive to produce.
• Density - Have a high relative density of around 95% or more after sintering. This gives good mechanical strength.
• An-isotropy - Exhibit strong magnetocrystalline an-isotropy due to their hexagonal crystal structure. This results in a preferred direction of magnetization along one axis.
• Particle shape - The strontium ferrite powder used typically has a hexagonal platelet morphology which helps promote magnetic an-isotropy during molding and sintering.
• Molding method - The powder is mixed with a liquid binder and compression molded into a dense green compact using high pressures. This orients the an-isotropic particles.
• Firing process - The compact is then sintered at high temperature to develop density while preserving the induced magnetic anisotropy orientation from molding.
• Remanence - Have a maximum magnetic flux density or remanence along the axis of anisotropy, but little/no remanence perpendicular to it.
• Coercivity - Usually have medium to high coercivity depending on additives, density, and anisotropy level achieved.

 
 
 
FERRITE POWDER GRADE OF UNIVERSAL MOTORS MAGNET