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The reason of magnetic coating peeling and what is the cause of the rust spots?

by:Newland     2020-04-11
As a 13 year old factory, which aspires to be a magnet industry benchmarking, after buying magnets, some buyers to purchase the magnet magnet surface after a period of time will appear white or other color spots, slowly development will become rusty spot, which would question the magnet quality is bad, unite by the small make up to now about the magnet coating peeling and rust spots is what causes. A qualified powerful magnets plating products, under normal circumstances, plating coating will not rust spots. But under what circumstances will appear this kind of circumstance? 1. Magnet stored in damp, liquidity is not good, air temperature changing places, 2. Magnet before plating on the surface of the dirt is not very good cleaning; 3. Electroplating time is not enough or process problems. 4. Magnet packing seal damage caused by the magnet oxidation; Ndfeb strong magnet qualified plating products, under normal circumstances, the magnet plating coating surface should not be rust spots. Ndfeb strong magnet should avoid the following storage methods: even the salt fog test qualified products long stored in the bad environment can produce rusty spot. When plating products stored in a harsh environment, base layer to further react with water, will cause the base layer and the adhesion strength of the coating is reduced, serious when still can cause local pulverization, basal and natural peeling. Electroplating products should not be placed in high humidity places for a long time, should be placed in a cool, dry place. A: magnet, strong powerful magnets: a brief introduction to the next article: experts pay you know ndfeb magnet
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