If you should be confused because of the offered grades of Neodymium or interested in discovering exactly how a class is assigned to a certain Neodymium alloy, this post is for your needs.
N35, ND-35, and ND-3512 are similar “Grades.” They represent a neo magnet alloy including a power Density (ideal Energy product) of 35 and has an Intrinsic Coercive energy of 12 kOe. The 12kOe causes a maximum working heat for magnet of 80°C. (this optimum running Temperature is geometry dependent along with 150°C can be used here for illustrative purposes.)
N45SH, ND-45SH, and ND-4520 are equivalent grade of Neo alloy. This notation presents a neo magnet alloy which has an electrical energy Density (Maximum Energy item) of 45 and contains an Intrinsic Coercive energy (Hci) of 20 kOe. The 20kOe is recommended within the high quality notation because of the “SH” suffix and results in a maximum operating heat the magnet of 150°C. (the precise maximum working heat is geometry reliant and so the 150°C is employed here for illustrative reasons.)
Neo Level Explanation
As explained above, a Neodymium magnet’s “Grade” comes from the power thickness (maximum power Product) and some sign associated with Neodymium alloy’s ability to operate at increased problems. Understanding the quality will not be adequate to anticipate a magnet alloy’s overall performance in a credit card applicatoin. The Neo magnet’s level need many other qualities which are acquainted with gauge the magnet’s performance in an application. Unless the application are at back ground room-temperature, the magnet has a Magnetic Length / Diameter proportion > 0.7, and there is no additional demagnetizing areas, a performance evaluation should-be executed. Kindly engage a Dura application agent for support whenever choosing a Neo class for the application.
Related Pages and TechTalk Articles to learn more:
Why Magnets Lose energy: the outcomes of Volume decrease, Geometry, Elevated Temperature, and Demagnetization from exterior Fields
Effects of heat on Neodymium Magnets: Reversible vs. Irreversible Field reduction
What exactly is optimal Energy product / BHmax and just how Does It match Magnet Grade?
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