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High-Temperature Resistant Circular Perforated Ferrite Permanent Magnet

This product is a high-temperature-resistant permanent magnet with a circular perforated surface. The material of the product is ferrite, which is a mixture of iron oxide and barium or strontium carbonate. It has good magnetic properties and can be widely used in modern electronics, especially in high-power motors and transformers. This is a High temperature resistant circular perforated ferrite permanent magnet. Each piece of the magnet is made with the later progressive technology and testing method. The magnets can be used in more applications in daily life, such as refrigerator doors.
The main application of the permanent magnet is that it can be applied in the motor, welding machine, and sensor. It has advantages such as high energy density, low cost, and high flux density. The magnetic properties of the product are not affected by temperature, so it is very suitable for use in a large area of more than 1000 ℃.
Magnets can be divided into permanent magnets and non-permanent magnets, the former is able to maintain long-term magnetic not easy to lose magnetic natural products, such as magnetite; The latter requires certain conditions in order to appear magnetic, such as electromagnets.
The manufacture of permanent magnets requires the use of some special metal materials, such as copper, cobalt, sulfur, nickel, iron, aluminum and titanium. These metal materials need to go through the following steps to become a magnet:
Casting: First make a sand mold in the shape of a magnet, and then put the metal into an electromagnetic furnace and heat it to more than 1600 ° C to melt all the metal into a liquid. The liquid is then poured into the mold and left to cool and cure.
Sintering: Metal pieces are tied to copper tubes, placed in larger tubes, placed in the middle, surrounded tightly with silica sand, and concrete is used to seal the exposed copper tubes at both ends. Then put it in the furnace to heat 700℃, take it out, fix the two ends of the copper pipe with a clamp, and pass a low voltage and high charge current. This step allows the metal to be slightly magnetized, establishing the correct magnetic field orientation.
Finishing: The sintered material is processed into the shape specification required by the customer with a specific machine.
Magnetization: The magnet is activated by a magnetizing machine. The machine transmits a powerful magnetic field through an electric current to the metal, creating a long-lasting magnetic force.
After these steps, the permanent magnet is manufactured. However, in order to prevent rust or damage to the surface, it is also necessary to carry out some protective electroplating treatment, such as nickel plating, epoxy plating and so on.
Who We Are

Dongyang Ma Li Magnet Co., Ltd.

Dongyang Ma Li Magnet Co., Ltd is China High-Temperature Resistant Circular Perforated Ferrite Permanent Magnet suppliers and High-Temperature Resistant Circular Perforated Ferrite Permanent Magnet company, founded in 2004, a total of more than 80 employees, covers an area of more than 3,000 square meters, engaged in magnet material research and manufacturing. The company is a production-oriented enterprise integrating scientific research, development, production and operation. Specializing in the production of NdFeB Magnetpermanent, ferrite magnets and rubber magnet. Products are mainly exported to the United States, Southeast Asia, India, Europe and other countries and regions. The magnetic products have a wide range of applications, such as: Motor, toys, electronics, audio, mobile phones, computers, bags, generators and other industries.


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More product information about High-Temperature Resistant Circular Perforated Ferrite Permanent Magnet

The high-temperature resistant circular perforated ferrite permanent magnet is a testament to scientific ingenuity and materials engineering. It is constructed from a ferrite composite, a ceramic material known for its robust magnetic properties and resistance to high temperatures. This unique composition allows these magnets to endure extreme heat conditions, making them indispensable in numerous industrial and technological applications.
Magnetic performance is a hallmark feature of these circular perforated ferrite permanent magnets. Ferrite materials are renowned for their excellent magnetic properties, particularly their ability to generate strong and stable magnetic fields. This strength, combined with their precise geometry, makes these magnets ideal for applications that demand strong magnetism, reliability, and precision.
The perforated circular design of these magnets is a distinctive feature that enhances their versatility. Circular perforations, strategically placed within the magnet's structure, enable customization and provide opportunities for integration into various systems. These perforations can be used for mounting, fastening, or other specialized functions, adding a layer of adaptability to these magnetic components.
One of the most significant advantages of high-temperature resistant circular perforated ferrite permanent magnets is their ability to withstand extreme temperatures. While many magnets lose their magnetic properties when exposed to high heat, these specialized magnets can endure temperatures of up to 300°C (572°F) or higher, depending on their specific composition and design. This remarkable heat resistance makes them invaluable in applications where conventional magnets would fail.
The applications of high-temperature resistant circular perforated ferrite permanent magnets span across a wide spectrum of industries and technologies. In the realm of electric motors and generators, these magnets play essential roles in various industrial machinery, pumps, and power generation units. Their ability to maintain magnetic strength in high-temperature environments contributes to enhanced efficiency and reliability.
In the automotive sector, circular perforated ferrite permanent magnets are used in engine compartments and exhaust systems, where high temperatures are common. They contribute to improved vehicle performance, emissions control, and fuel efficiency.
In renewable energy systems, these specialized magnets are integral to wind turbine generators and solar power equipment. They facilitate the conversion of energy into electricity efficiently, even in extreme environmental conditions. This aligns with global efforts to expand sustainable energy sources.
Beyond these sectors, high-temperature resistant circular perforated ferrite permanent magnets find applications in medical devices, aerospace technology, scientific research, and specialized equipment. Their magnetic strength, adaptability, and ability to withstand extreme heat make them invaluable in applications that demand precision, control, and reliability.
However, it's important to note that working with high-temperature resistant circular perforated ferrite permanent magnets requires specific considerations. Their magnetic force is formidable, necessitating careful handling to prevent accidents or damage to sensitive equipment. Additionally, the perforations may impact the magnet's structural integrity, so engineers and designers must evaluate the design and application requirements accordingly.
High-temperature resistant circular perforated ferrite permanent magnets represent an exceptional fusion of materials science and engineering marvels, embodying the forefront of modern magnet technology. Their extraordinary magnetic properties, combined with their ability to withstand extreme temperatures, position them as indispensable components across a multitude of industries. These magnets facilitate advancements in manufacturing, automotive, renewable energy, healthcare, and beyond. As innovation continues to drive progress, high-temperature resistant circular perforated ferrite permanent magnets are likely to remain at the forefront, offering creative solutions and transformative possibilities across a diverse range of applications and industries. Their unique combination of strength, versatility, and heat resistance elevates magnetism to new heights and makes them invaluable assets in the realm of technology and engineering.