What is class B Ndfeb magnet?

Neodymium iron boron magnet still have B class?Yes, in the production process of ndfeb strong magnets, there will be a variety of losses and defective products, do not affect the use of products, the industry will call it B grade ndfeb magnets.

So，What are some of the factors that will make ndfeb magnets a class B product?

1, the sintering

In the sintering process, due to the improper operation of workers.There will be sub-standard performance.For example, the material formula is N42, but the production, after testing only N38 performance, this kind of raw material blank became second class.However, if the customer only asks for N38 performance, its use will not be affected.

2，The tolerance

Products have a tolerance requirement, beyond this tolerance, will become second class.For example: circular ndfeb magnet 10*5±0.05mm, the processed product became 10*4.94, then this product is called second class.For some users, the tolerance requirement is ±0.1 mm tolerance, then the second grade will be used.、

3，Electroplating

Due to the influence of time and bath solution, the plating appearance of some ndfeb magnets is not perfect.Although it does not affect the use of the function, but because it does not meet the customer's acceptance standards, generally will be confirmed as a b-class magnet.

Of course, class B magnets will cost less than class A magnets.Giant high magnet before shipment will only meet the customer's requirements for class A ndfeb magnets shipped.

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