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How To Control The Product Quality Of NdFeB Permanent Magnets
Gauss Industrial Co.,Ltd | Updated: Jun 22, 2018

NdFeB permanent magnet, also known as modern industrial MSG, is an important high-performance magnetic material for modern industry to promote the progress of contemporary technology and society, and is widely used in various fields. How to determine the most comprehensive advantages of permanent magnet products: 1. Magnetic Can; Second, the size of the magnet; Third, the surface coating.


First, magnetic properties

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

1. According to the business requirements, or the mid-range or low-grade sintered Nd-Fe-B, the raw material producers stipulate the national standards for raw materials purchase, the company only sells high-grade NdFeB.

2. The advanced nature of the production process also determines the quality of the magnets.

3. Quality monitoring during production is very important.


Second, magnet shape size and tolerance values

Various shapes of neodymium-iron-boron magnets are used, such as circular, irregular, square, tile-shaped, trapezoidal. Different sizes of materials are machined using different machine tools for rough cutting. Advanced technology and machine operators determine the accuracy of the product.


Third, the surface coating treatment

Plating quality of the surface coating, zinc, nickel, nickel copper nickel plating copper and gold plating process. The product can be electroplated according to customer requirements. A brief summary of the quality of Nd-Fe-B products is to grasp the performance, size tolerance control, and determine the appearance and evaluation of coatings. Detection of Gaussian surface of magnet flux, etc. Test; Dimensional tolerances, accuracy of vernier calipers can be measured; Coating, coating color and brightness, and coating adhesion, and the appearance of the magnet surface can be observed smooth, with or without spots, with or without Drop the corner to evaluate the quality of the product.

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