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permanent magnet

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Magnet Thermal Aging

Magnet Thermal Aging What is magnet thermal aging? Even though we usually say “permanent magnet”, but magnets do not remain magnetism permanently. In general, permanent magnets are gradually demagnetized by the impact of heat variations. This behavior of magnet can be determined by total flux change over time for a given temperature, also known as [...]

Brief Introduction of Sintered Alnico Magnet

Brief Introduction of Sintered Alnico Magnet Alnico magnet has got a lot of attention after discovered by Tokushichi Mishima in 1931. Alnico magnet is still occupying the important position among the consumption structure of permanent magnet even this days due to its several advantages. Alnico magnet can be divided into sintered Alnico magnet and casting [...]

Decrypt NdFeB Magnets

Decrypt NdFeB Magnets - The formation of a magnetic field is a magnetic field generated by a molecular ring current of a magnetic substance, and the direction of movement of atoms or ions outside the nuclear electrons is random, so a large number of atom synthesis current is zero, no magnetic field, such as ferric [...]

Permanent Magnet Hysteresis Brakes

Permanent Magnet Hysteresis Brakes These brakes use permanent magnets to produce a drag torque and require no electricity for operation Drag torque is constant and independent of slip speed Torque on each unit can be adjusted to any value between bearing drag (~0) and the max torque indicated in the table below Select brake based [...]

HOW TO JUDGE THE QUALITY OF THE SINTERED NDFEB MAGNET?

HOW TO JUDGE THE QUALITY OF THE SINTERED NDFEB MAGNET? Acting as one of the significant materials that promote modern technology and social progress, the sintered NdFeB permanent magnet is widely applied to the following fields: computer hard disk, zeugmatography, electric vehicle, winder power generation, industrial permanent magnet motor, consumer electronics (CD, DVD, mobile phone, [...]

HOW TO CONTROL THE QUALITY OF NDFEB PERMANENT MAGNET PRODUCTS?

HOW TO CONTROL THE QUALITY OF NDFEB PERMANENT MAGNET PRODUCTS? NdFeB permanent magnet is also known as industrial monosodium in modern society. Acting as a kind of significant magnetic material with high performance in modern industry, it promotes the progress of contemporary technological field and society, and is widely applied to various fields. How to [...]

Permanent Magnet Stabilizing and Calibrating

Permanent Magnet Stabilizing and Calibrating Permanent magnets are utilized in a wide range of commercial and industrial applications, many of which require these magnets to function in a highly stable and consistent manner. Variables such as temperature, and demagnetizing fields will impact performance, but these effects can be mitigated through stabilization or calibration. Our new [...]

Permanent Magnet

A permanent magnet is a magnet that does not lose its magnet field. However what makes a magnet permanent? In order to understand this we need to know how magnets work. Magnetism is an aspect of the phenomenon known as the electromagnetic force a fundamental force of the physical universe. Magnetism like its other aspect [...]

HSMAG Custom Magnets

HSMAG Custom Magnets - Different Shape, Different Size, Different Grades, Different Coatings, etc. We can produce custom magnet shapes and sizes. We can produce custom magnetic assemblies. We can produce magnets to different grades and temperature ratings. We can produce made-to-order bespoke magnets to customer requirements. We can produce magnets with different coatings. We can [...]

Electromagnets

Electromagnets are a non-permanent magnets that produced magnetic field. The magnetic field is created by a flow of an electric current through the coil. The magnetic field disappears when the current ceases (or in the caseelectromagnets of a permanent electromagnet, the magnetic field is present until a current is applied). Electromagnets As a [...]

Epoxy Resin Magnets

Epoxy Resin Magnets - Grey Epoxy Resin Coating NdFeB Magnet 38H Grade Magnet Material : NdFeB or Neodymium Iron Boron Epoxy Resin Magnets Magnet Shape: Cylinder & Rod Magnet Grade: 38H Diameter : 12.7mm Thickness: 32.0mm Tolerance: +/-0.1mm (0.004”) Coating : Grey epoxy resin plated Operating Temp(Max).: 80℃ Direction of magnetization: Axially magnetized. [...]

Crime-Stopping Magnets

Crime-Stopping Magnets - We’ve all been there -- you just finished shopping, you’re tired from a long day, and then the annoying alarm goes off just as you try to leave the store. But have you ever wondered how it works? Well, if a little white strip attached to your item or tag is what [...]

Magnetic Energy

Magnetic Energy - What if you walked out of your house and entered the car of the future, which looked like a donut? You push a button and the vehicle rises about a foot from the ground. A small thruster moves the vehicle forward as the vehicle follows an electromagnetic strip embedded in the road [...]

Modern Permanent Magnets

Modern permanent magnets are far removed from the traditional horseshoe magnets. Today, magnets are available in a variety of shapes to suit many applications, and the introduction of magnetic alloys and magnetic-oxide based ceramics has made the simple iron magnets the exception rather than the rule. Modern permanent magnets Advances in magnet technology [...]

How Speakers Work

How Speakers Work - Making Sound: Speaker Magnets When the electrical current flowing through the voice coil changes direction, the coil's polar orientation reverses. This changes the magnetic forces between the voice coil and the permanent magnet, moving the coil and attached diaphragm back and forth. How Speakers Work So how does the [...]

Do permanent magnets have a half-life or otherwise “decay” over time?

Do permanent magnets have a half-life or otherwise “decay” over time? from reddit Physics It seems like there must be some energetic cost to constantly exerting a force on the surroundings. As particles & objects resist that force, it must exert some backward torque or whatever on the aligned atoms of the magnet. Over time, [...]

Permanent Magnet Stability

Permanent Magnet Stability Permanent Magnet Stability - The ability of a permanent magnet to support an external magnetic field results from small magnetic domains "locked" in position by crystal anisotropy within the magnet material. Once established by initial magnetization, these positions are held until acted upon by forces exceeding those that lock the domains. The [...]

Choosing a Permanent Magnet Have 3 Key Parameters

Choosing a Permanent Magnet Have 3 Key Parameters Choosing a Permanent Magnet - Every type of permanent magnet has a unique set of characteristics that can affect how is performs in various applications. When evaluating magnet options for your project, pay attention to the following: 1. Temperature One of the most important parameters to consider [...]

Rare-earth Permanent Magnet NdFeB Application Development to Expand

Rare-earth Permanent Magnet NdFeB Application Development to Expand with the development of alternative permanent magnet synchronous motor Rare-earth Permanent Magnet NdFeB Application According to rare earth metal net news, at present, China is the world's largest elevator producer and consumer, exporter. According to estimates by the China Elevator Association, China's average daily power consumption of each [...]

Hybrid Stepper Motor

Hybrid Stepper Motor The hybrid stepper motor combines features of both the variable reluctance stepper and the permanent magnet stepper to produce a smaller step angle. The rotor is a cylindrical permanent magnet, magnetized along the axis with radial soft iron teeth (Figure below). The stator coils are wound on alternating poles with corresponding teeth. [...]

Three Basic Types of Stepper Motors

Three basic types of stepper motors include the permanent magnet motor, the variable re-luctance motor, and the hybrid motor, which is a combination of the previous two. 1, Permanent Magnet 2, Variable Reluctance 3, Hybrid Permanent Magnet Figure 1 shows a cutaway diagram of a typical permanent magnet stepper motor. The rotor for the permanent magnet motor is [...]

Electropermanent systems by HSMAG

Electropermanent systems, electro-permanent magnetic system, electropermanent magnetic chucks Electropermanent systems by HSMAG - Electropermanent clamping systems are the combination of permanent and electromagnetic technology. They exploit the ability of some ferromagnetic materials to become a permanent magnet due to the fast action of strong direct current. In this state, they continue to function without the need of [...]

Why magnetic assemblies are so popular in USA and Europe market?

Magnetic assemblies are popular in USA and Europe market! Come to talk about some magnetic tools, such as magnetic parts tray, pot magnet/ mounting magnet, magnetic hand tools, and,etc., they are helpful for automotive industrial and home using. They are not so popular in china, but we have to be noted that those magnetic tools [...]

New Automation Technology by HSMAG

HANGSENG MAGNETECH INC. is “Changing the way things are done” in the automation industry. As a disruptive automation technology, HSMAG has challenged the preconceptions about permanent magnetic tools by demonstrating complete ON/OFF technology, fail-safe actuation, reliability, and versatility previously unheard of in the industry. HSMAG is striving to achieve market dominance in the automation industry [...]

Magnetic Materials Market by Type & Application – Global Forecasts to 2020

The global magnetic materials market is projected to reach USD 96.00 Billion by 2020, registering a CAGR of 9.6% between 2015 and 2020. The growth of the market is primarily driven by the automotive industry. Automobile uses magnetic materials in various parts, such as motors, sensors, actuators, and switches. Increasing concerns to enhance the fuel [...]