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The cause of rust spots ndfeb strong magnet _ ndfeb strong magnet manufacturers

by:Newland     2020-04-01
Ndfeb strong magnet put a period of time after the surface appear white or other color spots, slowly development will become rusty spot, under normal circumstances, general magnet plating coating is not easy to rust spots, the cause of rust spots tend to have the following kinds: 1. Magnet stored in damp, liquidity is not good, air temperature changing place; 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 mode: in too humid, the place with bad air liquidity; When temperature changes greatly, 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.
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