How to control the product quality of NdFeB magnet In the production process

- Mar 27, 2019-

How to control the  product quality of NdFeB magnet In the production process


NdFeB permanent magnet is also known as modern industrial MSG, as a modern industrial important high-performance magnetic material, NdFeB promotes the progress of contemporary technology and society, widely used in various fields. Judging the most comprehensive advantages of permanent magnet products from three aspects: a. magnetic properties; B. the size of the magnet; C. Surface coating.


Magnetic property

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

1, raw material manufacturers according to business needs or medium-grade or low-grade sintered NdFeB .

2. The advanced production technology also determines the performance and quality of magnets.

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


Shape, size and tolerance of NdFeB magnet

Use NdFeB magnets of various shapes, such as round, square, tile, trapezoid. Materials of different sizes are processed by using different tools with rough cutting materials. Advanced technology and machine operators determine the accuracy of the products.


 surface coating treatment


Surface coating quality, zinc, nickel, nickel copper nickel plating copper and gold plating process. According to customer requirements for the product plating options. The quality of NdFeB products, a brief summary, is to grasp the performance, dimensional tolerance control, determine the appearance of coating detection and evaluation. Detect gaussian surface of magnetic flux, etc. Dimensional tolerance, accuracy that can be measured with vernier calipers; Coating, color and brightness of coating and coating adhesion, and can observe the surface of the magnet through the appearance of bright and clean, no spots, no edge off Angle, to evaluate the quality of products.