What are neodymium magnets used for?
- Author: Uwandy
- Published on: August 19, 2024
In high-end fields, they are used in wind turbines, MRI(magnetic resonance imaging) machines, and their applications in the aerospace industry are also irreplaceable.
What are 5 common uses of neodymium magnets?
The application of neodymium magnets is very extensive, including daily office supplies, toys, electronic products, motors, magnetic therapy, aerospace, and aviation.
Commonly used magnets in workplaces include magnetic name badges, push pin magnets.
While magnetic balls and magnetic cubes are popular as toys.
Temperature-resistant block magnets, arc magnets, and cylinder magnets are commonly used in the motor industry.
Is it safe to touch neodymium magnets?
Neodymium magnets can be directly touched by hand. However, it is important to note that for larger neodymium magnets, they should be kept away from metal objects during use to prevent pinching injuries and the possibility of shards if magnets collide.
When using neodymium magnets, it is essential to keep them away from individuals with implanted ferromagnetic metals, such as pacemakers.
For magnetic balls used as toys, precautions should be taken to prevent children from accidentally swallowing them.
What is the disadvantage of neodymium magnet?
The drawbacks of neodymium magnets include poor temperature resistance, fragility, and susceptibility to rust. Therefore, in order to apply neodymium magnets in more demanding conditions, intrinsic coercivity is enhanced by adding dysprosium and terbium to the raw materials, thereby improving temperature resistance. Additionally, to prevent neodymium magnets from oxidizing and corroding, surface treatment is commonly applied after machining, including options such as zn plating, nickel plating, epoxy coating, gold plating, etc.
Is neodymium expensive?
Neodymium metal is a rare earth metal. As the name suggests, due to its rarity and widespread applications, the demand for neodymium metal is significant, making it relatively expensive compared to other common metals. In recent years, the price of neodymium metal and praseodymium-neodymium alloys has fluctuated between $4,000 and $20,000 per metric ton.
Why is neodymium expensive?
Because neodymium is one of the rare earth metals, with few identified rare earth mineral deposits and being a non-renewable resource, coupled with its wide range of applications and high demand, its price is expensive.
Neodymium, as one of the lanthanide metals, is used as a raw material for making NdFeB, which is the main component of rare earth magnets. The reserves of metals dysprosium and terbium in rare earth ores are even less than neodymium. Additionally, high Intrinsic coercivity(Hcj) neodymium magnets require the addition of dysprosium and terbium to replace neodymium, hence the prices of temperature-resistant series magnets such as M, H, SH, UH, EH, and AH are higher.
The prices of neodymium magnet raw materials on August 26,
The prices of neodymium magnet raw materials on March 17,
The prices of neodymium magnet raw materials on April 4,
The prices of neodymium magnet raw materials on October 28,