The permanent magnet can be classified into the rare earth permanent magnet, ferrite, Al-Ni-Co based permanent magnet and other permanent magnets, but the ferrite and rare earth permanent magnet are the two major categories. The rare earth permanent materials mainly include the bonded and sintered...
An oil spill can have a devastating impact on the environment and the creatures closest to it. For years, researchers have sought to find a method to quickly and thoroughly clean up after these unfortunate spills so as to minimize the damage. The more efficiently an oil spill can be addressed, the...
The neodymium magnets we sell are extremely strong, and must be handled with care to avoid personal injury and damage to the magnets. Fingers and other body parts can get severely pinched between two attracting magnets. Neodymium magnets are brittle, and can peel, crack or shatter if allowed to...
Klaus HalbachThe Halbach array is named for its inventor Klaus Halbach, a Berkley Labs physicist in the engineering division. The array was originally designed to help focus the beams in particle accelerators. In the picture on the left, Klaus Halbach in 1986 with Kwan-Je Kim discussing a model of...
The pictures above show the lopsided shape of the array's magnetic field using Magnetic Viewing Film. Notice how the field appears to be open on the left, and closed on the right? That is your first indication of what a halbach array actually is. The array is nothing more than 5 identical magnets...
It depends on the application. If you need the highest strength in the smallest possible package at room temperature, grade N52 is the strongest available.
Many of our magnets are offered in grade N42, which is a great balance between cost, strength and performance at higher operating...
What is a BH Curve? (WARNING: Technical Content Follows)A BH Curve describes the magnetic properties of the magnetic material. Let’s examine one step by step.
Consider a neodymium magnet sitting inside a magnetizer. The magnetizer is essentially a coil of wire wrapped around the...
HSMAG Permanentmagnet has developed a unique hot extrusion process to produce radially oriented anisotropic Nd-Fe-B ring magnets.
Unlike sintering, this process does not rely on a magnetic field for radial orientation.Our process starts with raw material powders manufactured by rapid...
Electro Permanent Magnet is a magnetic handling clamping system, which magnetic attraction force generated by permanent magnet material and controller by electric.
The magnetic force comes from its internal two high-energy magnetic circuit consisting materials: NdFeB magnet, Alnico magnet....
Separation/Refinement
Beginning with rare earth ore, high purity rare earth oxides are separated and refined.
Measurement of raw materials
Additives such as rare earth metals, iron, cobalt and others are measured to produce the desired composition. The materials are then melted in a vacuum...
Dipole ring magnetic circuits
Dipole ring magnetic circuits are used to generate uniform strong magnetic fields in a specific direction. The generated magnetic field is uniform to within 3-6% in the inner diameter space in the radial direction on the inner diameter side of the magnetic circuit and...
Maximum Working Temperature of Magnets
This is the maximum temperature to which the magnet may be exposed with no significant long range instability and structural changes. It is valid for magnets with sufficient large ratios of h:D and free from happening of demagnetization because of dimension...
Anisotropic Magnet
In manufacturing process, the molecule of magnetic material is aligned by an external magnetic field what process is also called anisotropy or orientation to obtain the higher magnetic value in the direction of anisotropic axis. Except AlNiCo magnet is oriented in the process of...
CST EM STUDIO® is used to calculate the cogging torque in a 4-pole Surface Permanent Magnet Motor (PMSM). Cogging torque is an inherent drawback in permanent magnet machines and results from the interaction of the permanent magnet magnetomotive force (mmf) harmonics and the air-gap...
Alignment magnets are used to provide uniform fields across a substrate. These fields are used to coerce magnetically permeable materials into a preferred orientation. Alignment may occur either in process, or as a post process operation as is the case with annealing...
Rare Earth Magnets are produced in several ways, some of which are the following:
a) Vacuum Melting – A combination of Neodymium, iron, iron-boron, dysprosium and other components such as copper, gallium, aluminum etc which are stirred and melted together. In most cases, the melting process...
Where do we find N52 magnets
Throughout the history of this earth, man has been defined and driven by a thirst for knowledge and innovation. He has been relentless in his progress towards a more scientific way of life. Earlier he used to hunt and gather for a living. After that came the time of...
Nd-Fe-B magnets have improved dramatically over the last 10 years. But they still contain iron and other reactive phases, and will rust. Nd-Fe-B is a blended powder before it is pressed into a magnet. The better the powder is mixed, the less "free" iron is available [small clumps of iron that did...
Overcoming the challenges presented by applications in the fields of aerospace and defense is a core competency of HSMAG Permanentmagnet . Leading players in these markets select HSMAG Permanentmagnet as their source for solutions because they realize the permanent magnetic expertise which HSMAG...
HSMAG Permanentmagnet magnetic technology for the motor / VCM market delivers the ability to push the limits on miniaturization, efficiency and performance. Many of the designs we have created enable our customers to achieve extreme performance in devices such as a wire bonding machines and missile...
Magnetic sensors indirectly measure properties such as direction, position, rotation, angle and current by detecting the magnetic field and its changes. Compared to other direct methods, such as optical or mechanical sensor, most magnetic sensors require some signal processing to get the property...
Permanent magnet supplied under two conditions, Magnetized or no magnetized, is usually not marked its polarity. If the user require, we could mark the polarity by the means agreed on. When placing the order, the user should inform the supply condition and if the mark of the polarity is...
Perament Magnet selection for all applications must consider the entire magnetic circuit and the environment. Where Alnico is appropriate, magnet size can be minimized if it can be magnetizing after assembly into the magnetic circuit. If used independent of other circuit components, as in security...
Permanent magnets are a vital part of modern life. They are found in or used to produce almost every modern convenience today. The first permanent magnets were produced from naturally occurring rocks called lodestones. These stones were first studied over 2500 years ago by the Chinese and...
ASK:
HiI have a U shape metal core and want to buy a permanent magnet which I can place between the core's ends "thus completing the flux path through the core". the permanent magnet must not saturate the core, I also have the H-B curve fore the core material.In the H-B curve, the point at which...
Magnetic ceramics, oxide materials that exhibit a certain type of permanent magnetization called ferrimagnetism. Commercially prepared magnetic ceramics are used in a variety of permanent magnet, transformer, telecommunications, and information recording applications. This article describes the...
As the name suggests, permanent magnet are 'permanent'. This means that they always have a magnetic field and would display a magnetic behavior at all times. On the other hand, an electromagnetic magnet only displays magnetic properties when an electric current is applied to it. That is how...
Centuries ago, it was discovered that certain types of mineral rock possessed unusual properties of attraction to the metal iron. One particular mineral, called lodestone, or magnetite, is found mentioned in very old historical records (about 2500 years ago in Europe, and much earlier in the Far...
Neodymium Iron Boron magnets require a protective coating / surface finish to prevent corrosion of the magnet.
Moisture in the atmosphere is potentially enough to cause an uncoated NdFeB magnet to show signs of corrosion. Marine environments are particularly effective at making NdFeB magnets...
The Zinc Phosphate Plating process has been developed to produce a bright white finish to be used as a low cost replacement to silver. It is essentially a copper-tin-zinc alloy, that is lead free with a color similar to bright/satin nickel or silver. The deposit is highly corrosion resistant,...
The 'China Nd-Fe-B Permanent Magnetic Material Industry Report 2013' is a professional and in-depth study on the current state of the Nd-Fe-B permanent magnetic material industry in China.The report provides a basic overview of the industry including definitions, classifications, applications,...
Magnetic Business Cards are the ideal choice for a small business owner on a limited marketing budget, or the large corporation with a vast market to reach. The relatively low cost of advertising with magnetic business cards, coupled with the thousands of impressions they make, promise that you...
Car magnets are often vinyl signs or logos with a magnetic layer that helps firmly affix them to the sides, or even the tops, of automobiles. This is one of the most common types of advertisements for vehicles, with stencils also making up part of that market as well. Magnets usually do not...
A magnet is any object that produces its own magnetic field. The magnet strength of these objects can vary from imperceptibly weak fields to incredibly strong fields, depending on a number of characteristics. Magnets can be classed into two distinct groups: permanent magnets and electromagnets, and...
By Robert Kaczmarek – Cobham Technical Services – Vector Fields Software
This article is intended to look at the implementation of electromagnetic Finite Element Analysis in a real world problem in order to gain insights and best practices around this type of analysis. In order...
By Dr. Nimitkumar Sheth, Applications Technology Manager – Molycorp Magnequench Heavy rare earths have been most affected by the escalation of rare earth prices. This has driven motor manufacturers to look for lower cost alternatives that avoid heavy rare earths, especially Dysprosium (Dy)...
China’s move to corner the market for rare-earth minerals (REMs) has prompted manufacturers of low voltage industrial motors to adopt alternative technologies that reduce or eliminate the use of these materials, spurring new growth in the motors market.
The global market for industrial...
The two main components of a hybrid or electric vehicle, the rechargeable battery and the electric motor, are also the most expensive. Part of the reason for the expense is, in order to make the motor as small and powerful as possible, rare earth metals are used in the process.
Stronger magnets...
