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How To Control the Quality of Ring Neodymium Magnets?

Nov. 24, 2020


1. Magnetic properties


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


1. The raw material manufacturer can sinter NdFeB at medium or low grade according to business needs. The company only sells high-grade NdFeB according to the national standards of the raw materials purchased.


2. The advanced nature of the production process also determines the performance and quality of the Ring Neodymium Magnet.


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


Ring Neodymium Magnet

Ring Neodymium Magnet


2.The shape and tolerance of the magnet


Various shapes of Neodymium Iron Boron Magnets, such as round, special-shaped, square, tile-shaped, trapezoidal. Process materials of different sizes from different machine tools to cut rough materials. Advanced technology and machine operators determine the accuracy of the product.


3.Surface coating treatment


The coating quality of the surface coating includes zinc, nickel, nickel, copper and nickel coating, copper and gold coating process. The real Neodymium Magnet can be electroplated by the customer as required. A brief summary of the quality of NdFeB products is to grasp the performance, control the dimensional tolerance, judge the appearance of the coating and evaluate it. Gaussian surface for detecting magnetic flux of magnets, etc.; dimensional tolerances, caliper measurement accuracy; color and brightness of the coating, adhesion of the coating, and appearance of the magnet surface, with or without spots should be evaluated.


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