NEWS



26

2023

-

06

How to control the quality of NdFeB permanent magnets

Author:


NdFeB permanent magnet, also known as modern industrial monosodium glutamate, as an important high-performance magnetic material of modern industry to promote the progress of contemporary technology and society, widely used in various fields, how to judge the most comprehensive advantages of permanent magnet products:
First, magnetic properties; Second, the size of the magnet; Third, the surface coating. 
First, the magnetic properties First of all, the key to the decision is to control the magnetic characteristics of the raw materials in the production process. 1. Raw material manufacturers according to business needs or mid-grade or low-grade sintered NdFeB, in the provisions of the national standard for raw materials to purchase raw materials, 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. 
Second, the shape size and tolerance value of magnet use various shapes of NdFeB magnets, such as round, special-shaped, square, tile, trapezoidal. Different sizes of materials are processed with different machine tools cutting rough materials, advanced technology and machine operators determine the accuracy of the product. 
Third, surface plating treatment The coating quality of the surface coating, zinc, nickel, nickel, copper, nickel, nickel, nickel, nickel, copper plating copper and gold and other electroplating processes. Plating options can be performed on the product according to customer requirements.

A short summary of the quality of NdFeB product quality is to grasp the performance, dimensional tolerance control, and judge the appearance inspection and evaluation of the coating. Gaussian surface to detect magnet flux, and other tests; dimensional tolerances, which can be measured with vernier calipers; The coating, the color and brightness of the coating and the adhesion of the coating, and the surface of the magnet can be observed by the appearance, whether there are spots, and whether there are edges and corners, so as to evaluate the quality of the product. 

Related News

undefined

undefined