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permanent magnet

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Neodymium Speaker Magnets Explained

Neodymium Speaker Magnets Explained In this article, you will meet a component that perhaps doesn’t get the exposure that it should – the magnet. While each speaker driver is made up of two magnets – an electromagnet and a natural/permanent magnet – the focus will primarily be on the latter. To reproduce sound through a [...]

What is Maximum Working Temperature of Permanent Magnet?

What is Maximum Working Temperature of Permanent Magnet? Permanent magnets are widely applied in various motors, sensors/instruments and electronics, their temperatures almost vary more or less during work. These temperature variations are resulted from eddy current effect and/or ambient temperature variation. Due to thermal fluctuation and magnetic domain evolution, a permanent magnet loses some or [...]

Introduction About Speaker Magnets

Some Introduction About Speaker Magnets Speakers are a type of transducer which can transfer the electric signal to the acoustic signal. The sound quality of the speaker is largely depended on the speaker magnets. Speakers can be classified to internal magnetic type and external magnetic type according to the magnetic circuit structure. Speakers also can [...]

What is the Strongest Commercial Permanent Magnet in the World

What is the Strongest Commercial Permanent Magnet in the World? Researchers and engineers have never stopped their steps to discover and develop novel permanent magnets since 1910s, and several types of permanent magnets had been commercialized and they have been widely used in motion, energy, electronics, medical and other high technologies in our daily life. [...]

How to Magnetize and Demagnetize a Permanent Magnet

How to Magnetize and Demagnetize a Permanent Magnet Due to random orientation for micro magnetic domains, a permanent magnet usually does not provide any magnetic flux when it is produced. It needs to be magnetized to saturation for use. So how to magnetize a permanent magnet? The basic principle is using a coil, i.e. an [...]

Industrial Magnets Encyclopedia from HSMAG

Industrial Magnets Encyclopedia from HSMAG Every day, different people working in different industries are dealing with a wealth of equipments or devices that contain various magnetic parts or custom magnet components. In this article, HSMAG magnet factory, one of influentially large magnet product manufacturing facilities, will walk you through magnet details about its classification, material, [...]

Neodymium Iron Boron Wind Power Magnets

Neodymium Iron Boron Wind Power Magnets Magnet ID:Wind-Turbine-Generator-N48M-Ni-16 Magnet Material:Neodymium Iron Boron Magnetic Grade:N48M Magnet Shape: wedge Surface & Coating:Ni Original Manufacturer:HangSeng Magnetech (HSMAG / HS Magnetics / Permanentmagneti.com) Solution:Customized you required material, grade, size, coating, shape, grade, pull force and woking temperature Origin:Ningbo, Zhejiang, China Supply Ability:50000pcs/day Certification:SGS,TUV,ISO9001,ROHS,TS16949 Neodymium Iron Boron Wind Power [...]

Two Advantages of Electromagnet Over Permanent Magnet

Two Advantages of Electromagnet Over Permanent Magnet Magnets come in two main types: permanent magnets and electromagnets. As its name suggests, a permanent magnet is always magnetized -- think of a kitchen magnet that stays stuck to a refrigerator door for years. An electromagnet is different; its magnetism works only when powered by electricity. Although [...]

N55: King of the Permanent NdFeB Magnet

N55: King of the Permanent NdFeB Magnet The theoretical (BH)max value of N55 NdFeB magnet is 512kJ/m3(64MGOe), and most of magnet manufacturer can make N52 magnet now. The (BH)max of N52 already achieved 90% of theoretical limit. The question in the mind of many users – is there any grade stronger than N52 magnet? N55 [...]

Permanent Magnet for Infrared Guided Missile

Permanent Magnet for Infrared Guided Missile Infrared guided technology is a military technology which utilizes infrared tracking and measurement to control and guide missiles to the target. Infrared guided technology is mostly served to the passive homing guidance. Infrared guided system consists of the infrared seeker, computer and actuator. As the tracking and measurement apparatus, [...]

Circumferentially Oriented Magnets

Circumferentially Oriented Magnets Circumferentially orientation and magnetizing pattern is not available for arc and ring magnets which comprised of Neodymium magnets and Samarium Cobalt magnets. The most common circumferentially oriented magnets are common Alnico horseshoe magnet, however, whether or not Alnico ring magnets can be oriented and magnetized through circumferential direction? In fact, Alnico ring [...]

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

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 [...]

Mini Micro Motor Magnets

Mini Micro Motor Magnets With the increasing performance of permanent magnet materials, rare earth permanent magnet materials are widely used in electrical fields. Using high-performance rare earth permanent magnet materials to make a motor, the structure does not require special electrical excitation system, which helps to improve motor efficiency and power factor, and save energy, [...]

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 [...]

Magnet Thermal Aging

Magnet Thermal Aging, Thermal Degradation of Magnetics, Effect of thermal aging on magnet, magnet aging fixture, Thermal aging of melt-spun NdFeB magnetic powder 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 [...]

How to remove impurities in NdFeB permanent magnet materials

How to remove impurities in NdFeB permanent magnet materials in finished products? The processing of NdFeB magnets is basically carried out under vacuum conditions, and impurities are not easily mixed. Since the chemical properties of NdFeB permanent magnet materials are relatively active, impurities are incorporated into the oxidation of the metal. Therefore, the finished product [...]

How to Judge the Quality of Sintered NdFeB Magnets?

How to Judge the Quality of Sintered NdFeB Magnets? Sintered NdFeB permanent magnets, as one of the important substances to promote contemporary technology and social progress, are widely used in the following fields: computer hard disk, magnetic resonance imaging, electric vehicles, wind power, industrial permanent magnet motors, consumer electronics (CD, DVD, mobile phones, stereos, copiers, [...]

Magnet Attracting Repulsion Principle

Magnet Attracting Repulsion Principle Magnet Attracting Repulsion - Now more and more people are using magnets, we want to discuss some of the most basic issues with you first. How do magnets attract each other? How are they excluded? How to make the screwdriver magnetized? Magnet basics magnets can attract each other or repel each [...]

Bonded Magnets: A Versatile Class of Permanent Magnets

Bonded Magnets: A Versatile Class of Permanent Magnets Permanent magnets are ubiquitous in modern societies. Devices that use permanent magnets include motors, sensors, actuators and acoustic transducers. These are used in home appliances, speakers, office automation equipment, aerospace, wind turbine generators, medical laboratory diagnostic test equipment and more. It is estimated, for example, that a [...]

Magnets for Medical Applications

Magnets for Medical Applications Trends which are noticeable in the medical market are improved ergonomics, weight and size reduction and increase in speed. Motors for medical applications must frequently endure hostile environments, caustics fluids, radiation, steam, elevated temperatures, vacuum, vibration and mechanical impact. Magnets for Medical Applications For these applications HSMAG can offer [...]

BONDED MAGNETS for HIGH TECH SYSTEMS APPLICATIONS

BONDED MAGNETS for HIGH TECH SYSTEMS APPLICATIONS The market of High Tech Systems, including motors and generators is continuously developing technical solutions which are more and more acting on the edge of technology. The increased use of robotics is just an example of this. Hot Formed NdFeB Magnet applications hightech systems This also [...]

HSMAG Magnets & Magnetic Assemblies for Permanent Magnet Motors

HSMAG Magnets & Magnetic Assemblies for Permanent Magnet Motors Your product – whether a car, industrial equipment or home appliance – starts with the motor. And building the best motor starts with HSMAG. Our team of experts work with you from project inception to completion. We regularly perform 2D and 3D magnetic modeling to determine [...]

Hall-Effect Sensors

Hall-Effect Sensors Based on the principle that if a current is allowed to flow through thin conducting material that is exposed to a magnetic field, another voltage is produced. The switch contains a permanent magnet, a thin semiconductor layer made of gallium arsenate crystal (Hall layer), and a shutter wheel. The Hall layer has a [...]

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 [...]

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