How to Distinguish the Magnet Quality

As a magnet buyer, you may have purchased it many times and still don’t know how to distinguish the quality of the magnet. HS Magnetics is standing at the neutral point of view today to talk about how the general magnets can identify the quality. Of course, you can also call us to understand more clearly.

The powerful magnets bought in the market do not know the quality? Do not let others know that you are a layman, what is the rapid detection method for the quality detection of strong NdFeB magnets?

The quality of the strong magnet NdFeB is mainly evaluated from two aspects: 1. Product performance, 2. Product appearance

First, product performance:

Magnetically strong NdFeB magnets are a unified standard. The main indicators to be understood are remanence, coercivity, and magnetic energy product. The powerful neodymium iron boron magnets of different sizes can be distinguished by Gaussian, and the quality and performance of the magnet can be distinguished by Gauss. The coercive force can only be passed through the magnetic property tester, and generally no such condition is given to the user for testing.

Second, the product appearance:

Can be taken up to detect the appearance of the product, mainly looking at the five aspects of the appearance:

(1) Pitting: including air bubbles. Scars, electroplating, slag layer, partial over-thickness;

(2) Edge: collapse, material residue;

(3) Scratches: knife marks, line marks, nail marks, etc.;

(4) Crack: cracking, etc.;

(5) Blisters: pinholes, pores, particles, etc., but also whether there are any missing corners around, whether the plating is intact, the size does not meet the design requirements, and the double Li-iron-boron magnets are coated to prevent the magnets. The surface is corroded and rusted. The same specification is placed on a flat surface that can be used to identify the magnitude of the magnetic force.

If the user needs to compare the powerful magnets, the magnetic properties of the measuring magnet can be understood by the analysis of the demagnetization curve.

The above is the method for testing the quality of strong NdFeB magnets, hoping to help everyone quickly identify the quality of strong magnets.

Magnet Quality

In terms of size, to check the tolerance of the required size, some outer diameters and thickness tolerances are more serious, and then from the appearance of surface treatment, if the surface color is very poor, even the collapse and collapse angle, then you need to be careful, Then if there are many small missing corners on the surface, it needs to be taken seriously.

Magnetic force Many of us say GS value, the actual GS value is compared in the same specification product, we must compare the center point value of the magnet. If it is conditional, it is better to confirm the flux!

Judging the quality of a powerful magnet, it is mainly analyzed from two angles: product performance, product management

Strong magnet performance:
The standard for the performance of strong magnets is that there is no uniform standard. When distinguishing, it is only necessary to investigate the relevant parameters of the powerful magnet, such as magnetic energy product, coercive force and residual magnetism. It is impossible to distinguish the magnetic energy product of a powerful magnet with a Gauss meter or a flux meter in a powerful magnet of different specifications. Only the static magnetic characteristic tester can be used at this time.
As a market-leading word product, strong magnets are becoming more and more demanding in the market, and the bidding price is getting bigger and bigger. Many magnet manufacturers will get inferior quality raw materials in order to better obtain a better competitive advantage in the market. cut costs. Therefore, when buying a powerful magnet, you must know how to distinguish the quality of the powerful magnet, so that we can buy a better quality powerful magnet.

Ok, let’s talk about it so much this time, and understand from these aspects, I believe you will have a little concept. contact me!

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