Sintered NdFeB arc magnet.Super strong permanent magnet arc from China manufacturer

Sintered NdFeB arc magnet.Super strong permanent magnet arc

Price:	10.0~50.0 USD
Payment Terms:	T/T,L/C,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: RM-Arc 28

Production Capacity: 100TON/MONTH

Delivery Date: 7-30days

Type: Permanent

Brand Name: rainbow magnet

weight: 200g

Means of Transport: Ocean,Air;experess

Packing: standard air cartons or sea...

Application: Motor Magnet

Composite: Neodymium Magnet

Grade: N35EH

coating: NiCuNi

The advantage is high cost-effective, with good mechanical properties, easy cutting; manufacture in a wide range of of shapes, sizes and grades.

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 needMOQ for it.

salt spray test results for coating,NiCuNi coating is better:

Commonly type of coating	Coating thickness(um)				Neutral salt spray test
Commonly type of coating	dark Ni	Cu	Shine Ni	Total	Neutral salt spray test
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 of sintered Arc Neodymium Iron Boron magnet

magnetic properties	Parameters
Density /g.cm3 VickersHardness HV Resistivity /υΩ.cm Compressivestrength/N.mm-2 Coefficient of ThermalExpansion (C⊥)/K-1 Coefficient of ThermalExpansion (C∥) /K-1	7.45 570 150 780 -4.8X10-6 -3.4X10-6

Arc Neodymium Iron Boron magnet has a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.

Nd-Fe-B permanent magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.

Also have high Br,high Hcj,high (BH)max,and high stability become the important material of the world.

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.

NdFeB permanent 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.

APPLICATION:

instrumentation,

electro-acoustic motor,

magnetic magnetization device

micro motors,

electronic industry,

automobile industry,

petrochemicals,

Arc Neodymium Iron Boron magnet