Magnets have become an essential ingredient in the present world. Magnets come in different shapes, sizes, and strength levels. This can be quite confusing when making a decision about the strength of the magnet needed for your project.
Magnetic force is one of the four basic forces in nature. The compass, one of the four great inventions in ancient my country, is an example of the ingenious application of magnetic force.
After being placed for a period of time, the neodymium iron boron strong magnet will have white or other color spots on the surface, which will gradually develop into rust spots. Under normal circumstances, the plating magnet plating layer is not prone to rust spots. :
Neodymium iron boron permanent magnet is a strong permanent magnet with modern magnetism, which is also widely used. It is mainly used in various fields such as electroacoustics, permanent magnet motors, communications, automotive electronics, magnetic machinery, aerospace, computers, household appliances, medical equipment, office automation, toys, packaging boxes, leather products, magnetic jewelry and so on.
The NdFeB magnets require a protective coating / surface finish to minimize the effects of corrosion. Iron within the structure can ‘rust’ which causes a permanent structural change in NdFeB which results in a permanent weakening of the magnetic performance – the worst case scenario is a total loss of magnetism.
In November 2020, due to the increase of market demand for rare earth metals, the orders of downstream enterprises increased, and the shortage of raw material supply capacity and the reduction of manufacturers' inventory, the relationship between supply and demand changed, which caused the price of rare earth metal materials to soar. In particular, the price of praseodymium and neodymium metal for manufacturing rare earth permanent magnets rose rapidly from 370000 to 530000 tons.
