Arc Shape Custom Neodymium Permanent Magnets for Generators
Wind power generation is one of the important applications of neodymium iron boron magnets, and the working environment of wind turbines is very harsh. They must be able to withstand the tests of high temperature, severe cold, sand, humidity, and even salt mist. The design life of wind turbines is usually 20 years. Currently, sintered neodymium iron boron permanent magnets are used in both small wind turbines and megawatt level permanent magnet wind turbines. Therefore, selecting the magnetic parameters of neodymium permanent magnets and requiring the corrosion resistance of the magnets are very important.
Neodymium iron boron alloy contains active rare earth elements, which are prone to oxidation and corrosion. In applications, neodymium iron boron coatings are considered as surface corrosion protectors. Common anti-corrosion coatings include nickel plating, zinc plating, and electrophoretic epoxy resin.
Ni-Cu-Ni coating
Nickel plating is the most common coating on most neodymium magnets. This coating is typically used as a three-layer coating with copper in the middle (nickel copper nickel). As long as it is moisture-proof, it is very suitable for indoor/outdoor use.
Zn coating
Zinc is commonly used as a single layer coating. It has excellent performance as a corrosion-resistant coating and is also very affordable. As zinc begins to oxidize, it forms a layer of zinc oxide, which helps protect the magnet.
Epoxy coating
The epoxy resin coating is mostly black, covering three layers of nickel coating (Ni Cu Ni Epoxy). It provides excellent performance in outdoor applications that require corrosion resistance. This coating is softer than other coatings and is prone to scratches, which can expose the underlying magnets and cause them to corrode. There are multiple colors to choose from for epoxy resin coatings.
Monte-Bianco Magnets Co., Ltd. is located in Changsha, Hunan Province. With more than 1000 skilled employees, our company has an annual production capacity of 2000 tons. Our company is able to supply a full range of products. It has been equipped with entire production capacity of product development, mold development and manufacturing, block production, finished product processing, surface treatment and other processes under fully controlled and managed process. Our products are widely used in power tools, new energy vehicles, energy-saving motors, wind power generation, high-end audio and other fields.
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Metal Generator Neodymium Magnet N35-N52 Grade TS16949 Approved Images
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