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Testing methods for the quality of powerful magnets
Powerful magnets have better performance and quality than ferrite, powerful neodymium magnets can absorb 640 times more than its own weight, which is why it won the title of "king of magnetism".
If you don't know the quality of the powerful magnets you buy on the market, don't let others know that you are a layman. Is there a quick test method to check the quality of powerful neodymium magnets?
Testing the quality of strong magnets NdFeB is mainly assessed from two aspects:1 . Product performance; 2. Product appearance.
I. Product performance .
Strong neodymium magnets is a unified standard, the main indicators are remanent magnetism, coercivity and magnetic energy product grade, different sizes of strong neodymium magnets can be differentiated by gauss and, this kind of magnets can be differentiated by gauss, coercivity can only be tested by the magnetic performance tester, the general user can not test.
Magnet
Second, product appearance.
You can pick up and check the appearance of the product, mainly look at the appearance of the five aspects:.
(1) pitting: including bubbles. Scars, plating tumours, slag layer and local thickness.
(2) Edge cracks: edge cracks and material residue; (2) Edge cracks: edge cracks and material residue; (3) Scratches: edge cracks and material residue.
(3) Scratches: knife marks, line marks, nail scratches, etc.
(4) Cracks: cracking, etc.
(5)Sand holes:pinholes, air holes, particles, etc. Also look around to see if there are any missing edges, plating is intact, and the dimensions are in accordance with the design requirements. Neodymium magnet coating to prevent magnet surface corrosion and rust. The same specifications placed on the plane that can be adsorbed can be used to distinguish the size of the magnetic force.
If you compare the user's requirements for strong magnets, you can analyse the demagnetization curve classification to understand the magnetic properties of the magnet under test.
The above is the quality testing method of strong neodymium magnets, hope it can help you how to quickly identify the quality of strong magnets.
OTHER NEWS
Method for testing the quality of powerful magnets
Powerful magnets have better performance and quality than ferrites. Powerful neodymium magnets can absorb 640 times more weight than their own, which is why they are awarded the title of "Magnetic King".
View detailsWhat is the difference between a strong magnet and an ordinary magnet?
Speaking of magnets, we are familiar with them when we return home. They can attract iron, but magnets are not invented by humans. They are natural magnetite. The ancient Greeks and Chinese found natural magnetized stones in nature, which can attract small pieces of iron. Early navigators used magnets as compasses to identify the direction of the sea. Magnets as a compass were also one of China's four great inventions. With the development of society, various magnets have been discovered. Let's introduce the difference between powerful magnets and different magnets.
View detailsWhat should I pay attention to when customizing spherical magnets?
Spherical magnet customization is not uncommon for our magnet manufacturers. It is an ordinary spherical product with special application fields. Spherical magnets are not used in all industries. Take the spherical magnets we produce as an example. They are mostly used in mechanical equipment. Magnets have a characteristic and are very sensitive to magnetic fields. When there is current, there is a magnetic field. If there is a magnetic field, the magnet ball will sway, so that the current safety on the mechanical equipment can be guaranteed.
View detailsNEED HELP?
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Neosmuk
No216 Jiushufang Road, Luoto, Zhenhai District Ningbo City, Zhejiang Province, China
