Consumption of Rare Earth Oxides for Magnets May Increase by 5 Times in 2030 Rare Earths are currently indispensable raw materials for top technology products and military supplies. A report from a research institution predicts that the consumption of rare earth oxides required for magnet production will increase at an average annual rate of 9.7%. The global
permanent magnets Archives | Stanford Magnets
October 10, 2020
Magnetic Materials in Permanent Magnet Motors
Magnetic Materials in Permanent Magnet Motors The permanent magnet motor uses permanent magnets to generate the motor’s magnetic field. It does not require an excitation coil or excitation current. It has high efficiency and a simple structure and is a good energy-saving motor. Compared with traditional electric excitation motors, permanent magnet motors have obvious advantages
September 23, 2020
Magnetic Induction Intensity B & Magnetic Polarization Intensity J
Magnetic Induction Intensity B & Magnetic Polarization Intensity J Practice and theory have proved that when a ferromagnetic or ferrimagnetic substance is magnetized in a magnetic field, in addition to the magnetic field in the substance, because the atomic magnetic moment of the ferromagnetic substance turns to the direction of the external magnetic field, it
September 15, 2020
Permanent Magnets in Magnetic Resonance Equipment
Permanent Magnets in Magnetic Resonance Equipment In our last articles, we’ve introduced permanent magnets in the electric power steering system (EPS), and permanent magnets used in magnetic separators, so in today’s article, let’s take a look at the permanent magnets in magnetic resonance equipment. Nuclear Magnetic Resonance (NMR) is a nuclear physical phenomenon. As early as
September 11, 2020
What is Remanence (Br)?
What is Remanence (Br)? There are four main indicators for measuring the performance of permanent magnets: remanence (Br), coercivity, intrinsic coercivity, and maximum magnetic energy product. In our last article, we’ve introduced what is maximum magnetic energy product, so in today’s article, we’ll take a look at what is remanence (Br). The Concept of Remanence (Br)
September 9, 2020
What is Maximum Energy Product (BH)max?
What is the Maximum Energy Product (BH)max? There are four main indicators for measuring the performance of permanent magnets: remanence, coercivity, intrinsic coercivity, and maximum energy product (BH)max. In the following posts, we will introduce these concepts and their applications one by one. In today’s article, let’s take a look at the maximum energy product
September 3, 2020
A Brief Introduction to Ferrite Magnets
A Brief Introduction to Ferrite Magnets Compared with other permanent magnets like Neodymium Magnets, SmCo Magnets, and AlNiCo Magnets, Ferrite Magnets are hard and brittle and have lower magnetic energy. However, they are not easy to demagnetize and to be corroded, and the production process is simple and low in price. Therefore, ferrite magnets have the
September 1, 2020
Surface Treatment of NdFeB Magnets – Passivation
Surface Treatment of NdFeB Magnets – Passivation In order to improve the corrosion resistance of NdFeB magnets, it is usually necessary to treat the surface of NdFeB magnets. Common surface treatment methods for NdFeB magnets include phosphating, electroplating, electrophoresis, and vapor deposition. In our last article, we’ve introduced the electrophoresis, so in this article, we will introduce
August 31, 2020
Permanent Magnets in the Electric Power Steering System (EPS)
Permanent Magnets in the Electric Power Steering System (EPS) As an important part of the vehicle, the steering system is one of the key systems that affect the stability, comfort, and driving safety of the vehicle. In the design of the steering system, most commercial vehicles and 50% of saloon cars adopt a power steering system
August 26, 2020
Magnets Used in Magnetic Separators
Magnets Used in Magnetic Separators The magnetic separator uses the magnetic differences between minerals for separation, which plays a role in improving the grade of ore, purifying solid and liquid materials, and recycling waste. Magnetic separators are widely used in mining, wood industry, ceramics, chemical, food, and other industries. For mining, the magnetic separator is suitable