Qianhui Magnetic
We are a professional r & d, production, sales of high-performance ndfeb magnetic materials and products of high salary technology enterprises. Main specifications of ndfeb magent are exported to the United States, Germany, South Korea, Japan and other countries.

the advantage and defect of ndfeb magnet


The most prominent characteristics of sintered ndfeb are remanence Br, coercivity Hcb and Hcj, magnetic energy product (BH)m are very high;Therefore, it has been widely used since it came into being.


Ndfeb also has some disadvantages, such as brittle, low operating temperature (< 220 ℃), the temperature coefficient is poor, poor corrosion resistance.Coating: due to the difference of corrosion resistance of sintered ndfeb itself, therefore, in the general case of product must have a coating to protect, according to the requirement of the product application environment against corrosion, currently the most widely has the following coating: galvanized, nickel plated, epoxy resin, chemical plating, gold-plated, silver, aluminum plating, chrome plating and a small amount of gonadorelin coating.

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