The development prospects of magnesy neodymowe's Testing Technology

　　The question of magnesy neodymowe magnets around the high coercivity destructive testing at room temperature, the scientists have been exploring the new test method and approach.

　　At present, the most promising solution to solve that sample's high coercivity of magnesy neodymowe materials directly integrity testing method is pulse magnetic field. High pressure and large capacitor to discharge hollow solenoid generates a pulse magnetic field, because there is no transfer media saturation, the highest magnetic field can reach tens of t

　　sting the other part still can use the principles and methods of traditional test. When testing, sample and detecting coil is arranged in the hollow solenoid, adjusting the parameters of the discharge circuit, the capacitor to discharge generated sine wave form, the pros and cons of the two directions of the magnetic field, a complete process of magnetizing, demagnetizing and test.

　　The method belongs to the dynamic open circuit test, demagnetizing field correction of different shapes samples and dynamic magnetic field of the eddy current generated in the sample of the test results is the key and difficulty of the test.