Neodymium magnet surface roughness. NdFeB magnets require a protective coating/surface finish to prevent magnet corrosion. This creates another problem – roughness. Surface Roughness: A measure of surface finish in microns.    

Physical Parameters of Neodymium Magnets 

Neodymium magnets – also called NdFeB, strong magnets – are the strongest permanent magnets in the commercial magnetic materials market. It has a maximum energy product of 26 MGOe to 52 MGOe.  A neodymium magnet is a permanent magnet made from an alloy of neodymium, iron, and boron, which form a Nd2Fe14B tetragonal crystal structure.  …

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Neodymium magnets have the strongest magnetism, but we have to use them properly to keep them magnetic. Otherwise, they can lose their magnetism under high-temperature conditions. This is not a quality issue of the neodymium magnets, but the nature of this type of material.  Osenc is a custom neodymium magnet supplier, and we will tell …

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sintered neodymium magnet

Generally speaking, neodymium magnets have 2 types of popular production techniques – sintered neodymium magnets and bonded neodymium magnets. The difference between them is mainly in the forming processes.     Bonded neodymium magnets are made by adding neodymium powder to the binder. The bonding process is essentially the same as injection molding.  Meanwhile, sintering is …

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5 Simple Steps to the Neodymium Magnet Supply Chain

Step 1: Mining (Ore) This is the beginning of the entire neodymium magnet supply chain. It is the mining of large quantities of ore containing a mixture of rare earth minerals. Rare earth elements (REEs) exist in large mixed deposits, such as cerium fluorocarbon, monazite, and yttrium phosphate ores. These deposits contain large amounts of …

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Neodymium Magnet Rust​

What is neodymium magnet rust? Neodymium magnet rust is a big problem during the production process. People have to add a magnet coating to the magnet to protect it Neodymium magnets are the 3rd generation of rare earth permanent magnets. They have excellent magnetic performance, mechanical processing characteristics, and high cost-effectiveness. For these reasons, they …

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Salt Spray Testing

What is salt spray testing? Salt spray testing is a laboratory simulation of a corrosive saline environment, also known as salt fog testing. It is used as an accelerated means of testing the ability of surface coatings to withstand atmospheric corrosion.  Some applications, e.g. in sea transport or generally in contact with sea water, require …

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Neodymium Magnet Chamfered

Neodymium Magnet Chamfered You may have seen many neodymium magnets with chamfers. None of them have sharp edges and corners. Have you ever wondered why neodymium manufacturers do this?   As a custom neodymium magnet supplier, Osenc will explain how chamfers are important for neodymium magnets, and how we can make them.  1. Why neodymium magnets …

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Magnet tolerance

Magnet Tolerance is one of the important factors in neodymium magnet purchasing. It includes dimensional tolerance and form tolerance. Neodymium magnets are important for manufacturing many products. They are critical components for products like motors, horns, testing instruments, etc. Usually, buyers have certain requirements for the dimensional tolerance and form tolerance of neodymium magnets. This …

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