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Topic: Neodymium magnet


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In the News (Mon 8 Sep 08)

  
 Neodymium Magnets UK
Neodymium Magnets UK Neodymium Magnets are made from a compound of Neodymium, Iron and Boron (NdFeB) and are often referred to as NEO magnets.
Neodymium magnets were initially developed for voice coil motors in computer hard disk drives and this market still accounts for over 50% of all Neodymium magnets produced.
Neodymium magnets have large pole areas and short magnetic lengths (A) and this is the opposite of most traditional magnets (alnico- red painted bar magnets have small poles and a relatively long length).
neodymium-magnets-uk.com /About_neodymium.html   (241 words)

  
 K&J Magnetics - Frequently Asked Questions - FAQ
Neodymium magnets are the strongest of the rare earth magnets and are the strongest permanent magnets in the world.
Neodymium magnets are the strongest and most permanent magnets known to man. If they are not overheated, neodymium magnets will lose only about 1% of their strength over 10 years - not enough for you to notice unless you have very sensitive measuring equipment.
Neodymium magnets are actually composed of neodymium, iron and boron (they are also referred to as NIB magnets).
www.kjmagnetics.com /faq.asp   (2374 words)

  
 Rare earth magnets for fun and profit
Take a 1-Tesla-field-strength neodymium magnet the size of a button, though, and the peak field areas on the outside of the magnet will only be a couple of millimetres away from the middle of the field.
The stronger the magnet and the more metal there is (the base of a chunky CPU cooler is an excellent candidate for this experiment, and I've got a few of those kicking around...), the stronger the "syrupy" feeling you'll get.
You'll find magnetic dampers on laboratory balances, for instance; a simple aluminium or copper tag on the end of the balance arm, moving between two strong magnets attached to the balance's frame, is the perfect way to stop the balance from oscillating for ages before settling on a reading.
www.dansdata.com /magnets.htm   (5513 words)

  
 Neodymium ( NdFeB ) Magnets
Neodymium permanent magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals.
These magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.
Since neodymium magnet material is prone to chipping and cracking, it does not lend itself to conventional machining methods.
www.allmagnetics.com /neodymium.htm   (311 words)

  
 Magnet Information
Magnetic fields are moving electrical charges that attract and repel one another.
The grade of a magnet (N35, N38, N40, N45, etc) is important because it specifies the quality of material used to construct the magnet.
An electromagnet is a magnet with magnetic force that is generated by passing an electrical current through a copper wire when the wire is wound into a coil.
www.acemagnetics.com /magnet-info.html   (586 words)

  
 Neodymium magnet - Wikipedia, the free encyclopedia
Cylinder- and disc-shaped neodymium magnets are especially responsive to the Earth's magnetic fields.
As NIB magnets produced in China have become less expensive in the last few years, the toy industry has used millions of them in magnetic building sets and other juvenile products including magnetic jewelry.
Operating a larger neodymium magnet close to smaller magnetic objects (keys, pens, etc.) and larger magnetic surfaces (radiator or a car, for example) can be dangerous if the person is caught in the middle between the magnet and the magnetic object or surface.
en.wikipedia.org /wiki/Neodymium_magnet   (830 words)

  
 WONDERMAGNET.COM - NdFeB Magnets, Magnet Wire, Books, Weird Science, Needful Things
This is because the size and shape of a magnet and the material behind it (such as iron) have a large effect on the measured field strength at the surface, as does the exact location at which it measured.
The north pole of a magnet is the pole that aligns itself with geographic north.
Elementary physics states that the magnetic field of a magnetic dipole is approximately proportional to the inverse cube of the distance from the dipole.
www.wondermagnet.com /magfaq.html   (4043 words)

  
 Neodymium Magnet 10 to 120 Years Shop by Age
The magnetic field created by the neodymium magnets is so strong; it will line up to match the magnetic north and south of the earth.
Any type of magnetic media will be history in the presence of one of these large neodymium magnets.
Neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals.
www.stevespanglerscience.com /product/1309   (1052 words)

  
 Neodymium Magnet Ring Resource, Data And News   (Site not responding. Last check: 2007-10-14)
Although neodymium and samarium are often mined together, samarium costs about 60 to 70 per pound, while neodymium, of which there are large deposits in the United States and China, can be obtained for about 25 per pound, according to industry sources.
Newly developed neodymium iron boron permanent magnets are expected to compete with samarium cobalt magnets because the neodymium magnets cost less to produce and their components are more readily available.
The new permanent magnet gear rduction cranking motor to be produced by Delco Remy will be about half the size of cranking motors currently installed in GM cars, mainly due to replacement of traditional copper wire coil with the smaller and lighter permanent magnets, company officials said.
www.neodymium-magnets-store.info /neodymium-magnet-ring.html   (1098 words)

  
 [No title]
The NIB magnet, or neodymium magnet, is so strong that eye protection must be worn when working with them, because if they slam together, they can shatter and eject chips at dangerous velocities.
The neodymium disk will be hovering in space as it falls, repelling from the walls as well as being slowed by electromagnetic braking.
Tie your neodyimum magnet to a string, a piece of tape, etc, and affix the other end of the string or tape to the plastic plate so the string stops the drag but not the repulsion.
www.eskimo.com /~billb/neodemo.txt   (1997 words)

  
 Neodymium Magnet Directory | Neodymium Magnet Results   (Site not responding. Last check: 2007-10-14)
Neodymium magnet china rare earth magnet co. neodymium magnet manufacturer china rare earth magnet co. china rare earth permanent magnet co. manufacture all kinds of neodymium magnet.
Neodymium iron boron magnets are the strongest available for a given.
NEW YORK There is currently enough neodymium processing capacity to handle the growing demand for neodymium iron boron magnets, but raw materials suppliers and processors say they will be prepared to expand their capacity in the next few years if the use of the new magnets pans out as anticipated.
www.neodymium-magnets-store.info /neodymium-magnet.html   (1152 words)

  
 SCIENCE HOBBYIST: neodymium supermagnet demonstrations, DIY magnet toys
I've had 3/4" magnets acidentally fall together and be completely shattered.
Magnet Sales Inc., 1-800-421-6692, http://www.magnetsales.com Magnets Are Us Inc South Bend, IN 1-800-470-3350 Surplus suppliers: many mailorder suppliers carry 1" trapezoidal NIB magnets removed from computer hard disk head position motors.
NIB magnets are used in the head-positioning linear motor.
www.eskimo.com /~billb/neodemo.html   (393 words)

  
 Neodymium Magnet Content - Neodymium Magnet Articles   (Site not responding. Last check: 2007-10-14)
Permanent magnet, flexible magnet, neodymium magnet, ferrite magnet, bonded magnet manufacturer.
Methods A small permanent magnet was attached at the end of an NG tube and its position was monitored using an external sensor array connected to a computer.
Magnet tracking provides 3 dimensional data, whereas fluoroscopy has the potential disadvantage of being only a 2 dimensional imaging system the acquisition of additional images to provide both anteroposterior and lateral views would increase radiation exposure and costs.
www.magnets-source.info /neodymium-magnet.html   (1064 words)

  
 SCIENCE HOBBYIST: neodymium supermagnet demonstrations, DIY magnet toys   (Site not responding. Last check: 2007-10-14)
However, thin-walled copper pipe is usually employed, and the magnet usually must be a slip-fit on the tube (like a piston within a cylinder.) With a slip-fit magnet you can't see anything but darkness within the pipe.
The result will be a bar magnet which is marked "N" and "S", but in fact both ends will be North, and there will be a big fuzzy South pole in the center (or vice versa, depending on how you held the NIB stack).
Repeat the experiment by using a thin plastic dish with the magnet BELOW the dish (no surface tension effects possible!) Idea: use a large number of magnets to write some initials, perhaps cast them into an epoxy block so their faces occupy the same plane.
www.amasci.com /amateur/neodymium.html   (3161 words)

  
 Neodymium Magnet
The neodymium magnet is measured the same way as a ceramic magnet.
You have a product that is very effective, and although the neodymium magnet costs 10 times more than the ceramic, you have a product that is going to work more aggressive.
That is why we use only neodymium magnets in our own manufactured products.
www.bio-magneticworld.com /neodymium.htm   (205 words)

  
 United Nuclear - Neodymium magnets
Magnetized through the width (the long, thin sides are the north and south poles).
These tiny magnetic particles have an average size of about 10 nanometers, and are coated with a stabilizing dispersing agent which prevents the particles from sticking together even when a strong magnetic field is applied.
However, when a magnetic field is applied to MagnaView Fluid, the magnetic polarities of the particles orient along the field lines almost instantly and the fluid itself conforms to the magnetic field.
www.unitednuclear.com /magnets.htm   (2784 words)

  
 Strong Neodymium Magnets Rare Earth K&J Magnetics
All of the neodymium magnets we supply are of the highest quality and are fully licensed.
We also carry a wide selection of neodymium "Mounting Magnets." These are strong neodymium magnets in a nickel plated steel casing that allows the magnets to be easily fastened to your project or structure using screws, bolts and/or nuts.
One style of Mounting Magnet comes with a hook attached, which can be incredibly handy on your fridge, in your garage or shop, or in your locker.
www.kjmagnetics.com   (795 words)

  
 Neodymium Magnets, Neodymium Magnet Sellers, Suppliers, Manufacturers, Exporters, Factories   (Site not responding. Last check: 2007-10-14)
We are professional rare earth sintered NdFeB magnet  (also called neodymium magnet, neo magnet, super magnet)  manufacturer, we mainly produce high quality sintered NdFeB magnet, main products N35 and up, the operating temperature range could be up to 200*C. We produce and design the NdFeB magnet as your specification and requirement.
The magnet is widely used in many fields such as aviation, spaceflight, instruments, meters, motors, speakers, electronics, medicine and machines, etc Neodymium Iron Boron Magnets Neodymium Iron Boron (N....
With excellent magnetic property, abundant raw material and reasonable prices, NdFeB Magnet is used as an ideal magnet in mini-motor, magnetic resonance imaging, sound device, magnetic suspension system, magnetic transmission machine and iatrical apparatus and etc. For NdFeB, if left it exposed, the iron in the magnet will rust.
www.fuzing.com /manufacturers/neodymium_magnet   (987 words)

  
 neodymium magnet Sellers, Suppliers, Exporters, Manufacturers, Factories   (Site not responding. Last check: 2007-10-14)
Xinchang Magnet Industry Co., Ltd. are professional magnetic materials and magnetic applicantand magnetic toys manufacture and exporter company, The most commonly produced material is neodymium-....
NdFeB magnet is mainly made from neodymium, iron and boron.
With excellent magnetic property, abundant raw material and reasonable prices, NdFeB Magnet is used as an ideal magnet in mini-motor, ma....
www.fuzing.com /qrx/neodymium_magnet   (649 words)

  
 Magnet City, supplier and manufacturer of consumer and industrial magnets and magnetic materials
Magnet City, supplier and manufacturer of consumer and industrial magnets and magnetic materials
Magnet City is a professional manufacturer and exporter of all kinds of magnets, including magnetic materials, Ferrite, NdFeb, Alnico, Smco, magnetic assembly, industrial permanent magnets and mechanical seals.
Magnet City offers solutions to all your magnet and magnetic manufacturing needs.
www.magnetcity.net   (214 words)

  
 Neodymium Magnet Specs
In general, the elements are melted together and then milled in to a powder that is dry pressed to shape in the presence of a magnetic field.
Then material is sintered, aged, ground to dimension, magnetized and tested.
They are called “rare earthmagnets because the elements of neodymium and samarium are classified as such in the lanthanides section of the periodic table of the elements.
www.bio-magneticworld.com /neospecs.htm   (95 words)

  
 Relieve Pain Today - Nikken Products vs XtraFlux� Magnet Therapy / Relaxation Therapy
These Neodymium rare earth magnets have the industry's highest strength ratings and they hold their magnetic properties for decades.
Our XtraFlux® magnets are hundreds of times stronger than rubber, urethane (refrigerator type magnets) and three to eight times stronger than ceramic magnets.
While magnets are known to be safe for physical treatment, their use has not been tested on people with pacemakers, insulin pumps, drug patches or on pregnant women.
www.relievepain.com   (452 words)

  
 Amazon.com: NEODYMIUM MAGNET RING .75"od x .375"id x .125": Electronics   (Site not responding. Last check: 2007-10-14)
The Neodymium (NdFeB) rare earth magnet is the strongest permanent magnet today and boasts an extremely high magnetic force and energy.
They are used in devices and instruments where a strong magnetic field is required, such as in avionics, spacecraft, electronic instruments and test equipment, medical instruments, microphones, DC motors, loudspeaker drivers, magnetic therapy products (you know the product..."Guaranteed to take 2~6 strokes off your game!")...the list goes on.
Because of the high strength of Neodymium magnets, and to prevent injury to people or equipment, care must be taken when handling these around other magnets, metal objects, electronic equipment, computer disks, watches, bank cards, etc.
www.amazon.com /NEODYMIUM-MAGNET-RING-375-125/dp/B0009KCXUG   (352 words)

  
 DM Neodymium Disc Magnet
Made of iron, boron and the rare earth element neodymium.
It comes with a small button magnet making it easy to attach to DM Face Mask, shirt, tie, hat or whatever.
Note: Neodymium magnets are very strong but have a short field penetration.
www.magnets4yourhealth.com /neodymium_disc_magnet.html   (90 words)

  
 Magnets - MAGCRAFT® Brand
Our neodymium magnets are made with the world's most advanced magnetic materials.
We only sell new neodymium magnets produced under license to the highest standards.
This packaging has been specifically designed to allow strong magnets to be easily displayed and handled in a retail environment.
www.rare-earth-magnets.com   (132 words)

  
 Super Neodymium (NdFeB) Magnet
Super neodymium magnets are made of neodymium, the most powerful magnet material in the world!
Super Magnets are great for projects that require extreme strength in a small size; or simply to amaze friends.
Due to the extreme strength, these magnets are NOT FOR CHILDREN, because they can pinch fingers.
www.allmagnetics.com /craft/ndfeb.htm   (96 words)

  
 neodymium magnet,neodymium magnets manufacturer and neodymium magnet,neodymium magnets supplier--China Ningbo Ketian ...
We are professional magnet, car magnet, business card magnet, rare eath magnet, neodymium magnet, permanent magnet, ceramic magnet, magnet motor, earth magnet, permanent magnet dc motor, sphere magnet manufacturer and factory in China.
We can produce blow neodymium magnet, neodymium magnets according to your requirements.
This magnets also are used in the brushness motors.
www.kt-magnet.com /neodymium_magnet.htm   (261 words)

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