Post Offer Free
Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

Gold Index: 16481

You are here: home  > Ndfeb Magnet  > Neodymium Block Magnets  > permanent magnet slice

permanent magnet slice 

Price: 0.1~10.0 USD 
Payment Terms: T/T,L/C 
Place of Origin: Zhejiang, China (Mainland) 
inquire
Add to My Favorites
HiSupplier Escrow
Share |

Product Detail

Model No.: RM-B24
Production Capacity: 10000000pcs/month
Delivery Date: 15 days
Shape: Block
Composite: Neodymium Magnet
Grade: N/M/H/SH/UH/EH
Means of Transport: Ocean,Air
Packing: standard carton by sea or b...
Application: Industrial Magnet
Type: Permanent
Brand Name: rainbow magnet

The magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure.

According the max working temperature, we can divide Sintered magnet to 7 grades, N grade is for 80 ℃,grade M is for 100℃,grade H is for 120℃,grade SH is for 120℃,grade UH is for 150℃ and grade EH is for 200℃,you according your demand to choose the grade which you need.
Mostly of rare earth permanent magnet always work do not at room temperature or under vacuum, in order to keep the accuracy of shape size and avoid the Corrosion and oxidation, we must make the coating on the surface.
Sometime, the customers have high demand of NdFeB anti-corrosion, antioxidant, we can design the magnet,add some elements, such as: niobium, vanadium, cobalt and other metal to replace part of the iron to catch the customer requirements of the acid and alkali resistant,antioxidant level, however, because of special material, we need MOQ for it.
How to judge the Permanent magnet material properties advantages and disadvantages of standard?
You can see 3 terms:
1)the magnet -crystalline anisotropy,
2)the magnetization strong
3)the Curie temperature.
salt spray test results for coating
Commonly type of coating
Coating thickness(um)
Neutral
salt spray test
dark Ni
Cu
Shine Ni
Total
Single-layer Ni
25
25
24h
normal
Double-layer Ni
12
10
25
72h
better
Dark Ni-Cu–shine Ni
6.25
8.75
10
25
120h
excellent

The main physical properties for permanent magnet slice:
magnetic properties
Parameters
Density /g.cm3
Vickers Hardness HV
Resistivity /υΩ.cm
Compressive strength/N.mm-2
Coefficient of Thermal Expansion (C⊥)/K-1
Coefficient of Thermal Expansion (C∥) /K-1
7.45
570
150
780
-4.8X10-6
-3.4X10-6

the magnetic properties of rare earth magnet:
compare NdFeB and SmCo
item
Js/T
(BH)m
/KJ.m-3
HA
/MA.m-1
Tc/℃
RE/TM
TM
Nd2Fe14B
1.61
528
6
310
0.117
Fe
SmCo5
1.15
248
32
740
0.166
Co
Sm2Co17
1.56
480
8
890
0.105
Co

attached pic show permanent magnet slice with black Ni coating


welcome to enquiry the permanent magnet slice.
bigPhoto
 Ms. Annie

Tel: 86-574-87840198
Fax: 86-574-87393806
Mobile: 86- 189 5744 9606
Contact to this supplier

Didn't find what you're looking for? Post Buying Lead or contact HiSupplier Customer Service Center  for help!

Related Search

Find more related products in following catalogs on Hisupplier.com

Related Products

Company Info

Rainbow Magnet Ltd. [China (Mainland)]


Business Type:Manufacturer
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

You May Like: