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Rainbow Magnet Ltd.
Rainbow Magnet Ltd.  

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generator ndfeb magnet 

Price: 0.01~100.0 USD 
Payment Terms: T/T,L/C,WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: RM-I01
Production Capacity: 100TON/MONTH
Delivery Date: 7-30days
Type: Permanent
Brand Name: rainbow magnet
Means of Transport: Ocean,Air;experess
Packing: standard air cartons or sea...
Application: Industrial Magnet
Composite: Neodymium Magnet
Grade: N42H

high Br
high Hcj
high (BH)max
high stability

picture shows the electronic industry magnet

There are three main parameters for magnet
the remanence Br (unit: Gauss), is the magnetic energy to measure the parameters of the magnetic field strength;
coercivity Hc (unit Oersted ) is a measure of the anti-demagnetization ability parameters;
the BH(max) (unit Gauss-Oersted), is how much of the characterization can store energy in a physical quantity.
Neodymium Iron Boron magnets have a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.

electronic industry magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.
The advantage is high cost-effective, with good mechanical properties, easy cutting; according customer's demand to manufacture in a wide range of shapes, sizes and grades.
The shortcoming is the low of the Curie temperature and the temperature characteristics, easy to rust, oxidation, Sintered NdFeB's surface is usually required for plating such as zinc, nickel, silver, gold, etc., can also be done phosphorus treatment or spray epoxy resin to slow down the oxidation rate.

See the follows Grade H Sintered NdFeB magnetic energy
Grade
Residual Induction
Coercive Force
Intrinsic Coercive Force
Maximum Energy Product
Maximum Operating
Temperature
Br
Hcb
Hcj
(BH)max
Tw
T
KGS
KA/m
KOe
KA/m
KOe
KJ/m3
MGOe
N33H
1.14-1.17
11.4-11.7
820-876
10.3-11.0
≥1353
≥17
247-263
31-33
≤120
N35H
1.17-1.21
11.7-12.1
860-907
10.8-11.4
≥1353
≥17
263-279
33-35
≤120
N38H
1.22-1.26
12.2-12.6
907-947
11.4-11.9
≥1353
≥17
287-303
36-38
≤120
N40H
1.26-1.29
12.6-12.9
907-947
11.4-11.9
≥1353
≥17
303-318
38-40
≤120
N42H
1.30-1.33
13.0-13.3
907-947
11.4-11.9
≥1353
≥17
318-334
40-42
≤120
N44H
1.33-1.36
13.3-13.6
907-947
11.4-11.9
≥1274
≥16
334-350
42-44
≤110



The main physical properties of sintered NdFeB parameters:
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

compare NdFeB and SmCo the magnetic properties of rare earth magnet:
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

electronic industry magnet with its excellent performance, abundant raw material and reasonable price is to be rapid development and wide application.
Also becoming increasingly popular across a wide range of novelty products for markets
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 Ms. Annie

Tel: 86-574-87840198
Fax: 86-574-87393806
Mobile: 86- 189 5744 9606
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Company Info

Rainbow Magnet Ltd. [China (Mainland)]


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

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