China Sichuan Xinheng Magnetic Materials Co., Ltd Company News

Rare earth permanent magnets are a type of permanent magnet that are made from alloys of rare earth elements, typically neodymium (Nd), iron (Fe), and boron (B). These magnets are known for their exceptional magnetic properties, such as high magnetic strength and high coercivity (resistance to demagnetization). Due to their strong magnetic field, rare earth magnets are widely used in various applications where strong and compact magnets are required, such as electric motors, generators, hard disk drives, magnetic resonance imaging (MRI) machines, and audio speakers.   Ferrite permanent magnets, also known as ceramic magnets, are made from a class of materials called ferrites, which are composed mainly of iron oxide (Fe3O4) combined with other elements like strontium (Sr) or barium (Ba). These magnets are relatively inexpensive to produce compared to rare earth magnets. Ferrite magnets have moderate magnetic strength and lower coercivity compared to rare earth magnets. They are commonly used in applications where lower magnetic strength is acceptable, such as refrigerator magnets, loudspeakers, magnetic separators.   About the difference between these two：   Magnetic Properties: Rare earth magnets have significantly higher magnetic strength than ferrite magnets. They can generate a stronger magnetic field and exhibit higher magnetic energy product, making them suitable for applications that require strong magnetic fields. Ferrite magnets, on the other hand, have lower magnetic strength but are still suitable for applications where moderate magnetism is sufficient.   Cost: Ferrite magnets are generally more cost-effective to produce compared to rare earth magnets. The materials used in ferrite magnets are abundant and less expensive, while rare earth magnets require rare earth elements, which are more costly and less readily available.   Coercivity: Rare earth magnets have higher coercivity, meaning they are more resistant to demagnetization. This makes them suitable for applications where magnets need to maintain their magnetic properties over time. Ferrite magnets have lower coercivity and are more prone to demagnetization.   Rare earth magnets are commonly used in high-performance applications that demand strong magnetic fields, such as electric motors, wind turbines, computer hard drives, and high-end audio systems. Ferrite magnets are widely used in applications where moderate magnetism is sufficient, such as refrigerator magnets, loudspeakers, and various industrial applications.   In summary, rare earth magnets offer superior magnetic properties and are used when high magnetic strength is required, while ferrite magnets are more cost-effective and suitable for applications where moderate magnetism is acceptable. The choice between the two depends on the specific requirements of the application and the balance between performance and cost.

The Application of Ferrite Permanent Magnets in Automobile Industry     Sichuan Xinheng Magnetic Materials Co., Ltd. produces ferrite permanent magnets for different applications, among which sintered ferrite arc segment for automobile motors have become the main products. Ceramic ferrite permanent magnets play a crucial role in the automotive industry, particularly in various electrical and electronic components of modern vehicles. Here's a brief introduction to the role of permanent magnets in automobiles: 1. Electric Vehicle (EV) Propulsion Systems: Permanent magnet ferrites are widely used in electric vehicle propulsion systems. They are employed in the permanent magnet motors that drive the wheels of electric and hybrid vehicles. These motors require high-performance magnets to generate the necessary torque and power. Ferrite magnets offer excellent magnetic properties, high coercivity, and good thermal stability, making them suitable for these demanding applications. Electric Power Steering (EPS): Permanent magnet ferrites find application in electric power steering systems, which have become increasingly common in modern vehicles. These systems use a motor to assist steering, and ferrite magnets provide the required magnetic field strength for the motor's operation. Ferrite magnets offer cost-effectiveness, reliable performance, and good temperature stability, making them a popular choice for EPS applications.   Starter Motors: Permanent magnet ferrites are utilized in starter motors, which are responsible for initiating the engine's combustion process in internal combustion engine vehicles. The magnets in the starter motor provide the necessary torque to crank the engine and start the vehicle. Ferrite magnets offer a balance of performance and cost-effectiveness, making them suitable for starter motor applications. Electric Window Regulators: Permanent magnet ferrites are used in electric window regulator systems found in modern automobiles. These systems allow for automatic or manual control of the vehicle's windows. Ferrite magnets provide the required magnetic force to move the window regulator mechanism, enabling smooth and reliable window operation. Electric Door Locks: Permanent magnet ferrites find application in electric door lock systems. These systems enable centralized locking and unlocking of the vehicle's doors. Ferrite magnets offer the necessary magnetic force to actuate the locking mechanisms, ensuring secure and convenient access to the vehicle. 6.Brake Systems: Permanent magnet ferrites are also used in certain types of brake systems, such as regenerative braking systems found in hybrid and electric vehicles. These magnets assist in generating the necessary magnetic fields to enable energy recovery and provide braking force. The role of permanent magnet ferrites in automobiles is essential for various electrical and electronic components, ranging from propulsion systems in electric vehicles to power steering, window regulators, door locks, and braking systems. Their reliable performance, cost-effectiveness, and magnetic properties make them suitable for these demanding automotive applications.

Sichuan Xinheng Magnetic Materials Co., Ltd. is one of the important manufacturers and exporters of conventional and special permanent magnet ferrite materials in Southwest China.   Today, we will briefly introduce the important role of our products in modern industry.     Permanent magnet ferrite, also known as ceramic magnets or ferrite magnets, plays a crucial role in modern industries.   1、Electric Motors and Generators: Permanent magnet ferrites are widely used in electric motors and generators. They provide a reliable and cost-effective solution for creating a magnetic field required for the operation of these devices. Ferrite magnets offer excellent magnetic properties, high coercivity, and high resistance to demagnetization, making them suitable for various motor and generator applications.   2、Automotive Industry: Permanent magnet ferrites are extensively used in the automotive industry. They are employed in electric power steering systems, hybrid and electric vehicle propulsion systems, starter motors, and various other automotive components. Ferrite magnets provide the necessary magnetic field strength while offering good temperature stability and resistance to environmental factors . 3、Consumer Electronics: Permanent magnet ferrites are commonly found in consumer electronic devices. They are used in speakers, headphones, microphones, magnetic sensors, and various other components. Ferrite magnets provide efficient and reliable performance in compact and lightweight designs, making them ideal for portable electronic devices.   4、Magnetic Separators: Permanent magnet ferrites are employed in magnetic separators used in industries such as mining, recycling, and food processing. These magnets help separate and remove ferrous particles from materials, ensuring product purity and equipment protection.   5、Magnetic Resonance Imaging (MRI): In medical applications, permanent magnet ferrites are used in MRI machines. They contribute to the generation of a strong and stable magnetic field necessary for imaging techniques. Ferrite magnets offer low cost and good field stability, making them suitable for MRI systems. 6、Renewable Energy: Permanent magnet ferrites find applications in renewable energy systems. They are used in wind turbines and hydroelectric generators to produce electricity efficiently. Ferrite magnets offer high magnetic efficiency and stability, making them suitable for continuous power generation.   Magnetic Assemblies: Permanent magnet ferrites are utilized in various magnetic assemblies, such as magnetic couplings, magnetic chucks, magnetic clamps, and magnetic lifters. These assemblies find applications in industries like manufacturing, robotics, and material handling.     The role of permanent magnet ferrite in modern industry is significant, providing reliable, cost-effective, and high-performance magnetic solutions across a wide range of applications.   Our company can customize a variety of high-quality permanent magnet ferrite. We have a professional team, which can provide you with the most accurate service. We have advanced technical equipment, which can timely complete each production task. We hope our products can make contributions on the way to create modern industry.      

Rare earth refers to the lanthanide elements in the periodic table-lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium ( Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), and two closely related elements of the lanthanide series There are 17 elements-scandium (Sc) and yttrium (Y). Rare earth permanent magnetic materials refer to magnetic materials made of alloys formed by rare earth metals and transition metals through a certain process. They are widely used in computers, automobiles, instruments, meters, household appliances, petrochemicals, medical care, aerospace and other industries. All kinds of special motors, nuclear magnetic resonance equipment, electrical devices, magnetic separation equipment, magnetic machinery, magnetic therapy equipment and other components that need to generate a strong gap magnetic field. 　　NdFeB permanent magnet material is a rare earth iron permanent magnet material represented by neodymium iron boron (Nd-Fe-B). Depending on the production process, NdFeB permanent magnet materials can be divided into two types: sintering and bonding. The sintered NdFeB permanent magnet adopts powder metallurgy technology. The smelted alloy is made into powder and pressed into a compact in a magnetic field. The compact is sintered in inert gas or vacuum to achieve densification, and in order to improve the coercivity of the magnet , Usually requires aging heat treatment. The bonded NdFeB permanent magnet material is a mixture of NdFeB permanent magnet powder and resin, and pressed into a shape in a magnetic field.

1. Samarium cobalt permanent magnet has high magnetic energy product and high coercivity, its magnetic performance is better than alnico permanent magnet, ferrite permanent magnet, the maximum energy product can reach 239kj/m3 (30mgoe), it is alnico8 permanent magnet 3 times that of ferrite permanent magnets (y40), 8 times that of ferrite permanent magnets (y40). Therefore, permanent magnet components made of smco permanent magnets are small in size, light in weight and stable in performance. They can be used in electro-acoustic telecommunication devices, motors, measuring instruments, gyroscopes, and electronics. Clocks, microwave devices, magnetic machinery, sensors and other static or dynamic magnetic circuits. 　　2. The samarium cobalt permanent magnet has a high Curie temperature and a small temperature coefficient, so it can be used at a high temperature of 300℃. 　　 3. Samarium-cobalt permanent magnets have high hardness, high brittleness, low bending strength, tensile strength and compressive strength, and should not be used as structural parts. 　　4. The main component of samarium cobalt permanent magnet is metallic cobalt (co≥99.95%), so the price is more expensive.

  The periodicity of the high-performance NdFeB permanent magnet material industry fluctuates with the fluctuation of the downstream industry. Although the development cycle of the downstream industry is not the same, it generally fluctuates with the fluctuation of the economic cycle. As the downstream new energy and energy conservation and environmental protection sectors belong to the industries encouraged and supported by my country's industrial policies, they will maintain rapid development for a long time in the future. Therefore, the high-performance NdFeB permanent magnet material industry is not significantly affected by economic cycle fluctuations.

  A. Current status of the magnetic material industry 　　 1. Product output and output value do not fit 　　 my country's magnetic material industry has begun to take shape in terms of output, but it has not yet formed strong international competitiveness in high-end products. 　　2, the performance of magnetic products is low The production performance of 　　 neodymium iron boron magnets is generally around N35 (the magnetic energy product is 35MGOE), N40 or higher and the high coercivity grade N38H. Only a few companies can produce N32SH. The new grades introduced abroad have reached N50 and N48H.       3. The production process and equipment are relatively backward 　　 The total sales of special equipment for magnetic materials in my country has reached 143 million yuan, which can provide complete sets of production equipment. Therefore, domestic companies should try to use continuous production lines with a high degree of automation to reduce the influence of human factors and ensure product consistency.   B.  Development direction Soft ferrite At present, the most widely used soft ferrites can be divided into: manganese-zinc power ferrite materials, communication and electromagnetic compatibility (EMC) manganese-zinc high permeability ferrite materials, and manganese-zinc ferrite materials for deflection coils. It is divided into four categories: ferrite materials, radio frequency broadband and electronic interference (EMI) suppression nickel-zinc ferrite materials. Materials are further developed towards high frequency, high permeability and low loss, that is, two highs and one low. Devices are developing in the direction of miniaturization, chip and surface mount.   Permanent ferrite material 　　 Due to the increasing demand for high-end magnets for automobiles and computers, the proportion of high-end permanent ferrites in China will rise rapidly. It is expected that the proportion of Y30H-1 series of high-end products during the "Tenth Five-Year Plan" period will increase from about 40% in 2000 to more than 60% in 2005 (about 126,000 tons). The output of Y30H-2 and above series of high-end products can reach 10 % (Approximately 21,300 tons), the overall export proportion increased to more than 50%.