Super Thin Rectangle Neodymium Magnet

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 500 Pieces pc

Supply Capability:: 100 Tons per Month pc/month

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1) Material: Sintered Neodymium-Iron-Boron;

2) Temperature: 200 centigrade;

3) Grade: N28EH, N30EH, N33EH, N35EH for your choice;

4) Shape: Rectangle;

5) Size:according to customers' request;

6) Coating:Ni, Zn, gold, copper, epoxy and so on;

7) Application: sensors, motors, rotors, wind turbines,wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on;

8) Quality Assurance :ISO9001:2000, RoHS report by SGS, Reach Certificate

9)Physical Property of Magnetic Material:High Coercive Force, High density, High remanence, Anti-demagnetizing, Strong corrosion-resistance, Different series, different work temperature.

Q: explain why some materials are magnetic and some are non magnatic?: Every electron, on account of its spin, is a small magnet. In most materials, the countless electrons have randomly oriented spins, leaving no magnetic effect on average. However, in a magnetic mateiral, many of the electron spins are aligned in the same direction, so they act cooperatively, creating a net magnetic field.

Q: Superconductors work as, when cooled to a certain point, they lose all electrical resistance. This near absolute zero temperature causes atoms to cease random vibrations, thereby allowing un-impeded flow for its electrons and a total loss of electrical resistance. The Meissner effect is a common property of these zero electrical resistant superconductors. It works because the magnet’s magnetic field cannot penetrate the superconductor, causing its lines of force to be expelled back at it. This has the effect of creating a mirror-image of the magnet within the superconductor and, through the expelled lines of force it is creating, causes itself to levitate.QUESTION : Why does the superconductor repel magnetic fields?: The exclusion of magnetic flux is brought about by electrical screening currents that flow at the surface of the superconducting material and which generate a magnetic field that exactly cancels the externally applied field inside the superconductor. Superdiamagnetism established that the superconductivity of a material was a stage of phase transition. Superconducting magnetic levitation is due to superdiamagnetism, which repels a permanent magnet, and flux pinning, which prevents the magnet floating away.

Q: Is it related to atomic structure of a substance?: According to a tour I recently took at an underground railroad house in Memphis, Tn, this is supposed to have accured. First I had heard of it, but instead of the brick, children were lined at the bottom of the bed in order to warm the occupants.

Q: All atoms have moving electric charges. Why, then aren’t have materials magnetic?: In order for objects to have strong magnetic properties of their own, they must first be ferromagnetic. If it is ferromagnetic, it must then have all it's magnetic dipoles (the way in which the electrons rotate within the metal that causes an magnetic flux) to be uniform and point in the same direction. If it isn't ferromagnetic or the magnetic dipoles aren't uniform, the magnetic field generated by the materials would not poccess any noticable field mostly because the vector fields inside the material cancels each other out.

Q: Can a magnetic switch (the reed switch) be triggered on by using a tin can instead of magnet. I was wondering if i can use it to sense tin in my recycling project. please if possible give me other information on how to use this switch. (i am a mechanical engineer !!).My second question is can all capacitive sensor detects plastic or there is a particular type of it which does this and how much does a small capacitive sensor (which senses plastic) costs?: hard factor. look into on to yahoo and bing. this could actually help!

Q: If it can‘t be blocked, what material would weaken the magnetic field the most. Lead, wood, plastic, etc. Thanks for any help.: mumetal is best, soft iron is next best. But they don't totally block it, they just deflect it. You would need to put the object to be shielded inside a mumetal box, or put the magnet into the box, one or the other. In other words, if you put a piece of mumetal on the end of one pole of a magnet, the magnetic field would just detour around it. The lines still have to reach the other pole, which is unshielded.

Q: What is the term for the distinctive poles formed when magnetic materials atoms group together in regions?: Magnetic poles would be my guess

Q: but whats inside it: For a less entertaining, but more reality-based response than CSIFREAK's answer, try this: csep10.phys.utk.edu/astr161/lect/.

Q: Dear Members, Diamagnetic substances acquire magnetism due to orbital motion of electronsparamagnetic substances acquire magnetism due to interaction between magnetic dipolesFerromagnetic substances acquire magnetism due to domain structure. This is what my textbook says. I dont understand the concept domain structure. Please help the concept of domain structure and how it helps ferromagnetic substances acquire magnetism. Thanks in advance, revered members.: Feeromagnetism involves exchange coupling between adjacent atoms that closely align their magnetic moments together. The process cannot be explained by classical physics modeling; you need quantum mechanics to explain it. It results in increasing mu (permeability) up to tens of thousands of times in certain kinds of steel from mu0 (air value). Only 5 elements are predicted by the quantum theory to show this effect. Fe, Ni, Co and 2 others I can't remember. I would stop worrying about it unless and until you take a graduate course in quantum mechanics. Meanwhile, enjoy the fact that B can be augmented tens of thousands of times by adding a high-permeability core to a solenoid or toroid! And that you can fish for nickels underwater with a permanent magnet!

Q: Iron and steel cylinders can be both magnetized by placing them inside a solenoid connected to a dc supply. Which pair of statements about the magnetic strengths of the iron and steel cylinders is correct? Supply on Supply on, then offA. iron stronger Iron strongerB. iron stronger. Steel stronger C. Steel stronger. Iron stronger D. Steel stronger. Steel stronger Which answer is correct? And why? Thanks (:: Which makes it pair B, as iron is better with current on, but loses more when off. Steel is not as good with current on, but retains more when off.

We are s specialized in manufacturing and selling all kinds of permanent magnetic materials. We are one of the major producers of magnets with decades of producing experience. Our company has advanced production equipments, experienced personnels and reliable quality assurance system. Our quality system was certified by TUV(BM TRADA & UKAS) for ISO9001:2000. We can manufacture all kinds of magnetic components of high precision to meet the customers' requirements for different designs. Our company is looking forward to cooperating with you sincerely and developing together with old and new friends.

1. Manufacturer Overview

Location	Guangdong,China (Mainland)
Year Established	2010
Annual Output Value	US$2.5 Million - US$5 Million
Main Markets	North America South America Eastern Europe Southeast Asia Africa Eastern Asia Western Europe Northern Europe Southern Europe South Asia
Company Certifications	ISO9001:2000

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Shenzhen
Export Percentage	21% - 30%
No.of Employees in Trade Department	3-5 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	3,000-5,000 square meters
No. of Production Lines	2
Contract Manufacturing	OEM Service Offered
Product Price Range	Average