Zinc and Nickel Coating Magnet in Hardness, Life and Price The most commonly used coatings for NdFeB magnets are galvanized and nickel-plated. They have obvious differences in appearance, corrosion resistance, service life, price, etc. The following are the key points. Polishing difference: Nickel plating is superior to galvanizing in polishing, and the appearance is brighter. [...]
Magnetic Coatings Samarium Cobalt, Alnico, and Ceramic materials are corrosion resistant and do not require to be coated against corrosion. Alnico is easily plated for cosmetic qualities and Ceramics may be coated to seal the surface which will otherwise be covered by a thin film of ferrite powder. NdFeB magnets, both sintered and bonded, are [...]
Neodymium Magnet Plating & Coating Neodymium magnets are much more susceptible to corrosion than Ceramic, Samarium Cobalt and Alnico, and would need to be coated and protected, particularly in harsh settings. They can be easily oxidized if exposed to air and moisture in atmosphere, and would become structurally vulnerable leading to breakage. To prevent this, [...]
NdFeB Plating Difficulties 1.The chemical activity in the material is extremely strong Neodymium iron boron parts even when in contact with water will produce hydrogen and corrosion,so: ①The use of acid and alkali before plating treatment should not be too strong, otherwise the material matrix is susceptible to corrosion, and the reaction between chlorine and [...]
