How to test whether the magnet of neodymium magnet

The neodymium magnet, also called the neodymium iron boron magnet, its chemical formula is NdFeB, is a kind of artificial permanent magnet. So far, this is the strongest magnetic material, so it is known as the magnet of the king.

The quality detection of NdFeB magnet is mainly from two aspects to do the evaluation：

First, neodymium magnet product performance:
NdFeB magnet properties have a uniform standard, the main indexes are energy product, coercivity, remanence etc. NdFeB magnet of different sizes with gauss or flux table to distinguish material energy of the product is not possible. The coercive force level, can only use the static magnetic properties of the tester.

Second, neodymium magnet product appearance:
Neodymium Magnet appearance detection can be divided into five categories:
1, Nick (including scratches, line marks, tool marks, etc.)
2, Pitting (including pitting, pits, bubble, scars, slag layer and partial thickness, plating tumor)
3, Crack
4, Knock edge (including edge collapse, residual material)
5, Trachoma (including sand holes, porosity, pinhole, particles) to see whether there is a missing edge off angle, the plating layer is intact, size is meet the design requirements; neodymium iron boron in general, plating to protect its corrosion, rust.
Usually a same specifications of the magnet and put on a plane can be adsorbed, such as patch, a blade, a huge hand to identify the magnetic size.
If the magnet is relatively high, the most accurate way is to use the magnetic analyzer to measure the magnet demagnetization curve can.

this blog is published by China Neodymium Magnet manufacturer - RUISEN MAGNETICS CO.LTD. who professional supply Permanent magnet, Magnetic assembly, NdFeB magnetic device, etc.

Rare Earth Magnets

Basic Info:

Product Name: Rare Earth Magnet
Brand Name: RUISEN
Place of Origin: Zhejiang, China
Type: Permanent Magnet
Composite: Neodymium Magnet
Application: Industrial Magnet

Product Detail:

Size: Customized
Coating: Ni,Zn,Epoxy,etc.
Shape: Ring, Disc, Block, Cylinder, Bar, Sphere, Arc Segment and Special Shape
Packing: Standard sea or air packing,such as carton,iron box,wooden box,etc.
Delivery date: 7 days for samples; with 30 days for mass goods.

RUISEN MAGNETICS CO.LTD is one of the best manufacturer of strong magnetic magnet in China, mainly offering the sintered neodymium iron boron magnets, Ferrite magnets as well as magnetic assemblies & devices. With the mature production technology and professional management team, we can offer you the high-quality Rare Earth Magnet with competitive price. 

For customized products, please send the specification or drawing to sales@senmagnetics.com.

Neodymium ring magnet

Quick Details：
Product Name: Neodymium Ring Magnets
Place of Origin: Zhejiang, China (Mainland)
Brand Name: RUISEN
Type: Permanent
Shape: Ring
Application: Industrial Magnet
Packaging Detail: cartons
Delivery Detail: 10-15days

Advantages:
1) Smaller tolerance, precisely control the processing dimensional
2) Good quality, popular with the speaker production and other industry
3) Long time of service life
4) quick delivery and small order can be accept

Neodymium Iron Boron magnet also known as NdFeB Magnets, the most powerful magnets in all permanent magnetic material, it has stronger coercivity and BH max Which can attract heavy object weighting over 600times its weight. Neodymium Magnets can be supplied in Ring, Disc, Block, Cylinder, Bar, Sphere, Arc Segment, Other special shape or size can be manufactured according to customer's requirement.

The Development Trend Of Fridge Magnet

With the development of society, fridge magnet has also been developing. Now the market of fridge magnet is very big, and it is used more and more widely. So how does the development trend of fridge magnet?

First of all, fridge magnet has functions of decoration and reminding. It can be attached on the surface of fridge and other places, playing a decorative role, and it also can be used to record things, such as the storage of food in the refrigerator. Fridge magnet increasingly becomes three-dimensional, and now the fridge magnet is seeking the stereoscopic effect, while the fidelity of it is also on the increase. In addition, the advertisement function of fridge magnet has also been increased. More and more enterprises choose fridge magnet as one of their promotional gifts, recording the related information of manufacturers on the surface, and the advertisement effect is pretty good. Fridge magnet is increasingly practical; now a lot of fridge magnet products produced with a notepad or thermometers, making the products have more practical functions.

The Magnetic Label

Labels are used as the positioning tool to mark the classification or the content of your goals, for yourself and others to find their own goals easily. And the magnetic label is a kind of label in the modern warehouse management system, which is also called the Magnetic plate, magnetic materials card or the magnetic storage card. This kind of labels showing the items of information can be adsorbed on the document frame, the bookshelf, or the products shelves by its magnetism, and they can be usually seen in the shopping malls, document room, library, warehouse and other places.

The advantage that the magnetic labels can be adsorbed on the shelf, bookshelf, and document frame is helpful to archive management information visualization in the warehouse, library, and other places, and the efficiency of the management work will be directly improved. In addition, the information on it can be filled out and replaced at any time according to the actual needs of users, and because it is relying on the magnetic surface adsorption, so its position can be changed freely, which is very convenient and quick.

Three Major Characteristics Of Rubber Magnet

Rubber magnet is a kind of material with great magnetic force, and in today's society, the magnetic force belongs to intangible resources, which is the main power of many products, such as some magnetic sucker. And here are three characteristics of rubber magnet.

The first characteristic is the flexibility. Different from the general magnetic materials rubber magnet has good flexibility, so it can be arbitrary remolded so as to meet a wide range of uses.

The second characteristic is the durability. Rubber magnet has strong magnetic force, and what is much more important is that it can keep this magnetic force over a long period of time without interference of the external environment. So it has been welcomed by the vast number of consumers.

The third characteristic is the fire resistance. With people's safety consciousness deepen, now the first condition of the product is safety. And the fire resistance of magnetic rubber makes it applied more widely.
Above are three characteristics of rubber magnet. Of course it has advantages more than these, and high-quality rubber magnetic can bring many benefits and convenience to us.

Something About Soft Magnetic Ferrite Material

Soft magnetic ferrite material is ferrimagnetic oxide containing Fe2O3 as a main component, production by powder metallurgy method. Due to the very low coercive force, soft magnetic materials can be repeatedly magnetized in the magnetic field, and when the external electric field is removed, the magnetism of soft magnetic materials will be removed after all or most disappear.



Application of soft magnetic materials in the industry began in the late nineteenth Century, and it was accompanied by a rise of electric power and telecommunication technology.
Soft magnetic material is not only applied in the field of home appliances, information technology, automotive field and other related fields, but also widely used as the main raw material for the production of electronic components. In recent years, the market demand is increasing year by year, and the variety of products is also increasing, which has become a bright point in the development of magnetic materials industry.