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How to Control the Quality of Neodymium-iron-boron Magnets?

Neodymium iron boron magnet is also called modern industrial monosodium glutamate. As an important high-performance magnetic material in modern industry, it promotes the progress of contemporary technology and society and is widely used in various fields. Usually the product quality of NdFeB magnets is controlled from three aspects: magnetic properties; magnet shape size and tolerance value; surface coating treatment.


1. Magnetic properties


First of all, the key to determining the quality of neodymium-iron-boron magnets is to control the magnetic properties of the raw materials during the production process.


1) The raw material manufacturer sinters neodymium-iron-boron according to business needs, and the purchased raw materials must comply with relevant regulations. Beilun Meank sells high-grade neodymium-iron-boron magnets.


2) The advanced nature of the production process also determines the performance and quality of neodymium-iron-boron magnets.


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


2. Magnet shape size and tolerance value


Neodymium-iron-boron magnets come in various shapes, such as round, special-shaped, square, tile-shaped, trapezoidal, etc. Different sizes of neodymium iron boron magnets are processed by using different machine tools to cut rough materials. Advanced technology and machine operators determine the accuracy of the product. The dimensional tolerance of neodymium-iron-boron magnets can be measured with vernier calipers.


3. Surface coating treatment


The surface coating has zinc, nickel, nickel electroplated copper and other electroplating processes. Neodymium-iron-boron can be electroplated according to customer requirements. After the surface coating is processed, the color, brightness, and bonding force of the coating can be tested, and the surface of the magnet can be observed whether it is smooth, whether there are spots, whether there are edges or corners, to evaluate the quality of the product.


To control the quality of neodymium-iron-boron magnets, a brief summary is to grasp the performance, dimensional tolerance control and coating appearance inspection.

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