Powerful magnet (NdFeB permanent magnet material specification definition)
Pubdate: 2019-12-31 09:00 pageviews:
Strong magnet of NdFeB permanent magnet material (standard definition)
(1) Permanent magnet material: refers to a magnetic material with high coercive force in terms of magnetic flux density and magnetic polarization. It is saturated after being magnetized, and still has magnetic properties after the external magnetic field is removed. Permanent magnetic materials are also known as permanent magnetic materials or hard magnetic materials.
(2) Rare-earth permanent magnet materials: Permanent-magnet materials based on metallic compounds formed by rare-earth metal elements and transition metals, which are often referred to as rare-earth intermetallic permanent magnets, and are also referred to as rare-earth permanent magnets. It is now divided into the first and second generations.
(3) Nd-Fe-B permanent magnet materials: Rare-earth iron-based permanent magnet materials represented by neodymium iron are the next-generation permanent magnet materials with the highest magnetic properties (energy density), the widest application range, and the fastest development. NdFeB permanent magnet materials can be divided into sintering and bonding depending on the production process. The sintered NdFeB permanent magnet uses powder metallurgy. The smelted alloy is made into powder and pressed into a compact in a magnetic field. The compact is sintered in inert gas or vacuum to achieve densification. In order to improve the coercivity of the magnet, Force, usually requires aging heat treatment. The bonded NdFeB permanent magnet material is a mixture of NdFeB permanent magnet powder and resin, which is pressed and formed in a magnetic field.
(4) Definition of high-performance neodymium-iron-boron permanent magnets: The high-performance neodymium-iron-boron permanent magnets come from the "China Hi-Tech Product Mouth Catalog 2006" with the sum of the rapid setting band and the maximum magnetic energy product. Sintered NdFeB permanent magnet materials with a coercive force (KOe) (definition ② Main performance parameters: The performance of high-performance NdFeB permanent magnet materials is mainly composed of coercive force, remanence, maximum magnetic energy product, and highest working performance. Parameters such as temperature.
