Because of poor corrosion resistance of iron-based and lanthanum, NdFeB is generally required to be used after electroplating. However, with the expansion of the application fields of permanent magnet motors such as elevators and wind power generation, users have put forward higher requirements for the corrosion resistance of NdFeB, because the electroless plating products have much better glue adhesion than electroplated products and fittings. The safety of the use of the motor has also been improved accordingly. Now some customers have begun to use a large number of non-plated NdFeB products. In response to this situation, the company has developed a ferroniobium with ultra-low weight loss through continuous innovation. Boron products (the data unit of the weight loss test is how many milligrams of weight lost per square centimeter), the general weight loss data of the NdFeB industry is above 150mg/cm2, depending on the material formula and the production process conditions, the data has a big difference. The weight loss data of some of our products has reached the HAST requirement of 168 hours below 1mg/cm2. Because of its low weight loss characteristics, the corrosion resistance is very good, and the reliability and service life of the products have been greatly improved. High-end applications such as permanent magnet motors have strict requirements for corrosion resistance, and are mainly applied to military aerospace such as elevators, radars, and wind turbines. Industrial motors and other fields.

Note: There are two main test criteria for weight loss - US and European standards. US requirements: PCT test: 2atm (atmospheric pressure) 95% RH (humidity) 121 ° C, 96 hours, required weight loss is 5 ~ 10mg / cm2 or less; European requirements: HAST Test: 3atm (atmospheric pressure) 95% RH (humidity) 130 ° C, 168 hours, the required weight loss is 2 ~ 5mg / cm2 or less; the weight loss data of each grade of NdFeB products is not nearly the same, you can consult our professional engineers.