The Relationship between Surface Magnetic Field and Magnet Performance The surface magnetic field refers to the magnetic induction intensity at a certain point on the surface of the magnet. So how to calculate the surface magnetic field of a magnet? Is there a corresponding relationship between the surface magnetic field and remanence? In this article, let’s take a look
Cornerstone Articles Archives | Page 10 of 16 | Stanford Magnets
October 12, 2020
October 10, 2020
The Relationship between Motor Performance and Permanent Magnet Material Function
The Relationship between Motor Performance and Permanent Magnet Material Function In our last article, we’ve introduced the magnetic materials in permanent magnet motors. And in today’s article, let’s take a look at the relationship between motor performance and permanent magnet material function. In short, the performance of a motor is directly related to the performance
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 21, 2020
FeCrCo Magnet Introduction
FeCrCo Magnet Introduction FeCrCo permanent magnet first appeared in the early 1970s. It is an age-hardening deformable permanent magnet with a wide range of alloy composition. Its basic composition is 20~33% Cr, 3~25% Co, and the rest is Fe. In this article, let’s take a quick look at the FeCrCo Magnet. The magnetic properties of FeCrCo magnets are equivalent
September 18, 2020
What is Magnetic Flux (Φ)?
What is Magnetic Flux (Φ)? In the application of magnets, Magnetic Flux (Φ) is an important index to measure the performance of magnets, especially in the fields of motors, audio speakers, and so on. So what is Magnetic Flux (Φ)? In this article, we will try to answer this question. The Concept of Magnetic Flux (Φ)
September 16, 2020
Surface Treatment of NdFeB Magnets – Phosphating
Surface Treatment of NdFeB Magnets – Phosphating As we all know, sintered NdFeB magnets are easily oxidized and corroded, so strict anti-corrosion treatment must be carried out before use. In our last articles, we’ve introduced the methods of NdFeB magnets surface treatment, like electrophoresis and passivation. So in today’s article, let’s take a look at the other method of surface
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