Ndfeb permanent magnet is also called modern industrial monosodium glutamate. As an important high-performance magnetic material in modern industry to promote the progress of contemporary technology and society, it is widely used in various fields. How to judge the most comprehensive advantages of permanent magnet products: first, magnetic properties; Two, the size of the magnet; Three, surface coating.

I. Magnetic properties

First, the key to the decision is the magnetic properties of the raw materials that control the production process.

1, raw material manufacturers according to business needs or middle or low grade sintered Ndfeb, in raw material purchase raw material national standards, the company only sells high-grade Ndfeb.

2, the advanced production process also determines the performance quality of the magnet.

3. Quality control in the production process is very important.

Magnet shape, size and tolerance value

The use of NdFeb magnets in various shapes, such as round, special-shaped, square, tile, trapezoidal. Different sizes of materials are processed using different machine tools to cut rough materials, advanced technology and machine operators determine the accuracy of the product.

Three, surface coating treatment

Surface coating coating quality, zinc, nickel, nickel copper nickel plating copper and gold plating process. Electroplating options can be carried out according to customer requirements. The quality of Ndfeb products is pros and cons, a brief summary, is to grasp the performance, dimensional tolerance control, judging the appearance of coating detection and evaluation. Test the Gaussian surface of magnetic flux, etc. Dimensional tolerance, the accuracy that can be measured with vernier calipers; Coating, coating color and brightness and coating bonding force, and can be observed through the appearance of the magnet surface smooth, whether there are spots, whether there are off edges off corners, to evaluate the quality of the product.