ndfeb-smco-alnico magnets

What’s the difference between Alnico, Sm-Co & Nd-Fe-B magnet materials?

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Alnico is an older magnet material that still has important applications. Its maximum energy product is about 1/5 of Sm-Co materials, but it has excellent elevated temperature properties and has better corrosion resistance.

Alnico can be cast into different shapes with various magnetic orientations. The rare earth Sm-Co and NdFeB magnets have high coercivity, so they do not need to be magnetized in circuit and can be used with low permeance coefficients (i.e. thin discs).

These materials also lend themselves to Helmholtz coil testing due to their straight line normal curves. This also makes rare earths ideal for SMC and high field dipoles. Sm-Co has a good resistance to thermal demagnetization but is brittle.

NdFeB is less brittle, has poor thermal properties, and is prone to corrosion.

What are neodymium magnets? Are they the same as “rare earth”?

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Neodymium magnets are a member of the rare earth magnet family. They are called “rare earth” because neodymium is a member of the “rare earth”elements on the periodic table. Neodymium magnets are the strongest of the rare earth magnets and are the strongest permanent magnets in the world.

Magnet application in life 1

Magnet application in life

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Brainpop – animated educational site for kids – science, social custom magnets are effective promotional product for restaurants and pizza shops — get your phone number on your customer's fridge. Magnet crafts – free magnet craft ideas get creative with magnets try making one or more of these refrigerator magnets.

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Which is the strongest type of magnet? 2

Which is the strongest type of magnet?

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Neodymium (more precisely Neodymium-Iron-Boron) magnets are the strongest permanent magnets in the world.Neodymium magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world.

They are also referred to as NdFeB magnets, or NIB, because they are composed mainly of Neodymium (Nd), Iron (Fe) and Boron (B). They are a relatively new invention and have only recently become affordable for everyday use.

magnetic filter bar

Where Can Buy Food Industry Grade Stainless Steel Magnetic Filter Rod – 12000 Gauss?

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[vc_row][vc_column][vc_column_text]The Food Industry Grade Stainless Steel magnetic filter rods – 12000 Gauss are used for continuous removal of ferrous debris, ensuring product purity and subsequently protect the processing equipment downstream which otherwise may be damaged causing costly repairs.

Where can buy the them?

Sinoneo Magnets is one of the main magnetic filter bar,magnetic filter rods,magnetic filter tube manufacturers and suppliers in China, offering you the customized service with competitive price. Our factory has introduced advanced equipment and technology. Welcome buy our quality magnetic filter bar,magnetic rods,magnetic tube and check the quotation with us.

Technical Specification

  • 12,000 Gauss.
  • 25mm diameter x 150mm length.
  • +/-0.1mm tolerance.
  • Neodymium N42 magnets encased in stainless steel.
  • M8 thread, 10mm deep at each end.
  • Easy installation.
  • Custom design and manufacturing available.
    Brand: Sinoneo
    Shape: Rod
    Magnetic Face: 25mm dia
    Thickness: 150mm
    Grade: N42
    Plating: S’Steel
    Material: NdFeB
    Performance (Gauss): 12000
    Vertical Pull (Kg):
    Slide Resistance (Kg):
    Max Temp (degrees C): 80
    Fixing: M8 x 10mm thread

Made from rare earth magnets; strongest and most effective at attracting even the smallest particles of ferrous material. Easy to install into existing machinery or assembly line; providing simple yet effective solution to product contamination.

To ensure optimum performance, clean the rods periodically, manually removing the ferrous material attached.

The magnetic filter rods are available in various sizes and pack quantities. Sinoneo magnets offer custom design and manufacturing service for difficult applications where standard shapes and sizes will not work.[/vc_column_text][/vc_column][/vc_row]

Magnet may transform high-field research 3

Magnet may transform high-field research

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The National High Magnetic Field Laboratory at Florida State University says it’s been given nearly $3 million to build a new kind of superconducting magnet.
Officials say they expect the new magnet will break records for magnetic field strength, make possible new types of science and save vast amounts of energy and money.

The magnet, funded by a $2 million National Science Foundation grant and a $1 million award from the university, is expected to generate a magnetic field of 32 Tesla. Tesla is the scientific unit of measure of magnetic field strength.

Scientists said such a magnetic field would be more than 3,000 times stronger than a typical refrigerator magnet, and about 45 percent more powerful than the strongest superconducting magnets available today.

The material that will be used for the new magnet is a type of high-temperature superconductor called yttrium barium copper oxide. Researchers say it promises to revolutionize research in high magnetic fields.
The magnet is scheduled for completion in 2012.

© 2009 United Press International, Inc. All Rights Reserved.

http://www.upi.com/Science_News/2009/10/28/Magnet-may-transform-high-field-research/UPI-13671256758860/

What is the magnets? 4

What is the magnets?

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A magnet  is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.

A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone.

Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly to a magnetic field, by one of several other types of magnetism.

Ferromagnetic materials can be divided into magnetically “soft” materials like annealed iron, which can be magnetized but do not tend to stay magnetized, and magnetically “hard” materials, which do.

Permanent magnets are made from “hard” ferromagnetic materials such as alnico and ferrite that are subjected to special processing in a powerful magnetic field during manufacture, to align their internal microcrystalline structure, making them very hard to demagnetize.

To demagnetize a saturated magnet, a certain magnetic field must be applied, and this threshold depends on coercivity of the respective material. “Hard” materials have high coercivity, whereas “soft” materials have low coercivity.

An electromagnet is made from a coil of wire that acts as a magnet when an electric current passes through it but stops being a magnet when the current stops. Often, an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.

The overall strength of a magnet is measured by its magnetic moment or, alternately, the total magnetic flux it produces. The local strength of the magnetism in a material is measured by its magnetization.