What Are the Product Characteristics of Neodymium Magnets?
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What Are the Product Characteristics of Neodymium Magnets?

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The neodymium magnet has excellent magnetic properties and is widely used in electronics, electrical machinery, medical equipment, toys, packaging, hardware machinery, aerospace and other fields.

  • What are the product characteristics of neodymium magnets?

  • What is the story of neodymium magnets?

  • What is the coating of neodymium magnets?

What are the product characteristics of neodymium magnets?

1.Commonly used surface treatments include: nickel plating (nickel-copper-nickel), zinc plating, aluminum coating, electrophoresis, etc. Phosphating can also be used when working in a closed environment. Due to the high magnetic properties of NdFeB, it is used in many cases as a substitute for other magnetic materials to reduce product volume. If ferrite magnets are used, the size of the current mobile phone will probably not be less than half a brick.

2.Both samarium cobalt magnets and neodymium magnets have relatively good processing performance. Therefore, the dimensional tolerance of the product is much better than that of ferrite. For general products, the dimensional tolerance (+/-) 0.05 mm can be reached.

What is the story of neodymium magnets?

NdFeB magnet, also known as NdFeB magnet (NdFeB magnet), is a tetragonal crystal composed of neodymium, iron and boron (Nd2Fe14B). Neodymium magnets were discovered 1982 by Masato Sagawa of Sumitomo Special Metals in Japan. The magnetic energy product (BHmax) of this magnet is larger than that of the samarium cobalt magnet, and it was at that time the material with the largest magnetic energy product in the world. Later Sumitomo Special Metals developed a successful powder metallurgical process. General Motors has successfully developed the fusion spinning process that can be used to produce NdFeB magnets. This magnet is the strongest permanent magnet available today and the most commonly used rare earth magnet.

neodymium magnets

What is the coating of neodymium magnets?

You must have seen that neodymium magnets are always bright and shiny. This is not without reason. The composition of neodymium magnets is a combination of iron, neodymium and boron. And the way these elements are constructed, they can rust without coating.

If these magnets rust, this affects the magnetic properties of the entire magnet. Therefore, to protect neodymium magnets, manufacturers usually coat the magnets with other elements that prevent corrosion. In addition, these coatings make the magnets stronger because neodymium magnets are brittle.

In addition, the most common coating choice for neodymium magnets is nickel. Nickel is not only widely used and accepted, but also very effective. Also, some other manufacturers of neodymium magnets use gold, zinc, copper, silver, etc. for coating.

But as mentioned above, nickel plated magnets are the best choice. In addition, if the nickel-plated base magnets are now triple coated with nickel, copper and nickel, so remember that NdFeB magnetic coating is very important.

From the first idea to the finished product, our efficient working method guarantees the highest quality. At Shine Magnetics, we always do everything we can to upgrade and expand our production facilities. Efficient production process and punctual delivery are the requirements of customers and also what we are constantly improving.

We are constantly trying to improve ourselves in new thoughts, new technology and new working methods.
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