N35 Disc Permanent Neodymium Magnet with Nickel Plating

 
NdFeB magnet:

Neodymium magnet, also known as NdFeB magnet, Neo magnet, permanent magnet, rare earth magnet, is a tetragonal crystal formed by neodymium, iron, and boron (Nd2Fe14B). 
Due to different manufacturing processes, NdFeB magnets can be divided into sintered NdFeB and bonded NdFeB. Bonding is actually injection molding, while sintering is vacuumed and heated at high temperature.In 1982, Masayoshi Sagawa of Sumitomo Special Metals discovered neodymium magnets. The magnetic energy product (BHmax) of this kind of magnet is greater than that of the samarium cobalt magnet, and it was the material with the largest magnetic energy product in the world at that time. Later, Sumitomo Special Metals successfully developed the powder metallurgy process, and General Motors successfully developed the spin-blown smelting method to prepare neodymium magnets. This kind of magnet is the strongest permanent magnet today, and it is also the most commonly used rare earth magnet. 
NdFeB magnets are widely used in electronic products, such as hard drives, mobile phones, earphones, and battery-powered tools.In order to avoid corrosion damage, it is necessary to do a protective treatment on the surface of the permanent magnetic material during use, such as electroplating with gold, nickel, zinc, tin, and spraying epoxy resin on the surface.Neodymium is a metal that magnetically orders only below 19 K (−254.2 °C; −425.5 °F), where it develops complex antiferromagnetic orders. However, compounds of neodymium with transition metals such as iron can order ferromagnetically with Curie temperatures well above room temperature, and these are used to make neodymium magnets.The strength of neodymium magnets is the result of several factors. The most important is that the tetragonal Nd2Fe14B crystal structure has exceptionally high uniaxial magnetocrystalline anisotropy (HA ≈ 7 T - magnetic field strength H in units of A/m versus magnetic moment in A·m2). This means a crystal of the material preferentially magnetizes along a specific crystal axis but is very difficult to magnetize in other directions. Like other magnets, the neodymium magnet alloy is composed of microcrystalline grains which are aligned in a powerful magnetic field during manufacture so their magnetic axes all point in the same direction. The resistance of the crystal lattice to turning its direction of magnetization gives the compound a very high coercivity, or resistance to being demagnetized.

 

Packaging & Shipping
 

Packaging:

usually inner carton -→  outer box (singer layer and double layer) -→ pallet and can be packaged per your request.

 

Shipping: 

a: the weight is under 40Kg,we will choose DHL, FedEx or UPS with shielding box for you ; 

b: the weight is over 100Kg,we will choose shipping for you;

c: the weight is between 40Kg-100Kg, per you request;
 

Payment:

L/C, T/T, Westunion and Paypal are all availalbe.

Our Services:
1, Free sample can be sent for your evaluation;

2, Reply will be sent to you in the first time.

3. Quick lead time: 7-25 days.

 

Company Information
1, Our factory is established in 2005;

2, We are a professional manufacturer of magnetic materials;

3, ISO9001: 2008 and RoHS certification assure you good quality;

4. We cooperate with many famous companies in home and abroad, such as Aisin Seiki, Keda in Yuyao, Prico, Siemens Ltd Australia, GM, BMW, BENTLEY  

Q: What is the delivery time?
A: If the goods are in stock, we will deliver them immediately after we sign the contract and decide the payment. If the goods are out of stock, it will be produced from the material. The lead time is 7-25 days.

Q: How do you transport?
A: All available shipping ways could be applied, by courier, air or sea. Full-way tracking the cargos for you before the goods arrive.

Q: What's your packing?
A: we will offer the best package to protect the magnet 

Q: What is your terms of payment ?
A: According to your request.30% Deposit ,70% when finish the product 

Q:How to get sample?
A.For the exsiting sample :We will charge you as less as we can, if with DHL/FedEx account,few sample maybe free.
B.For the sample with your custom logo,after sample fee received,we will start sample making , usually 3-7 days,then send to you by express 

 

If any question, pls contact us freely.