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This is a neodymium magnet with a diameter of 12mm. What sets it apart from other neodymium magnets is its coating. The magnet is coated with black nickel, which has a charcoal or bronze glossy appearance. Adding black dye during the final nickel plating process of triple nickel-copper-black nickel, it is not completely black like the epoxy coating and still shiny, much like a normal nickel-plated magnet, It is often used in some industries with special requirements such as optical instruments and photographic equipment..
The main components of the black nickel layer are nickel, zinc, sulfur and carbon. Among them, nickel is the main component, and the nickel content is about 40%~60%, followed by zinc, the zinc content is about 20%~30%, and the sulfur content is about 20%~30%. It is 10%~15%, and the total amount of carbon and organic matter accounts for about 10%. With the different process specifications, the relevant components in the coating will be greatly different, and the color of the coating surface will also be greatly changed.
The black nickel coating is dark black, but with the difference of the previous treatment process, it can obtain true black and bright black. The layer should not be too thick, otherwise the brightness will be reduced.
After black nickel plating, brushing can also obtain a matte black decorative surface with different textures.
For decoration, black nickel plating solution can be used to electroplate black nickel on the surface of copper plating, silver plating and nickel plating, which has a special decorative effect and presents a colorful appearance. After plating, brush with copper wire or finely polish with a small cloth wheel. You can also use rolling method to obtain more color sets, which are both elegant and beautiful decorative coatings. These process methods have been widely used in clothing. application.
If you are interested in strong magnets with this coating, you can contact us to provide you.
Other 12mm diameter magnets;
Ferrite grade, sintered ferrite magnetic property parameter table
NdFeB magnet grade, Sintered neodymium magnet performance grade parameter table
Neodymium(Ndfeb) Magnet Material Safety Data Sheet
Sintered Ferrite Material Safety Data Sheet Pdf
Magnetic properties grade parameters of smco rare earth magnets
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