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Ndfeb magnet manufacturers how to test the performance of the magnet and quality?

by:Newland     2020-05-05
Usually we receive the customer to send the magnet samples, don't know what performance, how to do? Shenzhen star and magnetic industry professional manufacturer of ndfeb magnets to solve is how to test the performance of the magnet? What instrument is commonly used in testing? Star and ndfeb magnet manufacturers generally receive samples ndfeb magnet detection usually used micrometer, calipers, gauss meter and fluxmeter, film thickness gauge measuring tools, etc. Micrometer and vernier calipers measure the ndfeb magnet tolerance size, in mm. Gauss meter a point on the surface of magnetic force, main measuring magnet unit gaussian, due to the different magnets each point on the surface of magnetic force, and the edge of the magnetic force is higher than that of center of magnetic force, so the measured data error is big, generally the magnetic center table shall prevail. Then there is ndfeb magnet manufacturers of magnet electroplating, the visual, coating quality directly affect the service life of ndfeb. Ndfeb coating quality inspection main methods are: the visual appearance, coating thickness measurement, the drop test ( Mainly for galvanized products) , cross test ( Commonly used in nickel plating products) , quench heat excitation test, the pressure of PCT test, SST salt spray test, constant temperature and humidity test, etc. What the hell is film thickness gauge? Film thickness gauge measurement finished plating thickness of ndfeb magnet, the use of film thickness gauge can effectively monitor the quality of electroplating magnets plating flexible adjustment. Last fluxmeter fluxmeter main measuring magnetic ndfeb magnet one facet, unit webb Wb, compared with gauss meter, fluxmeter measure data more objective and accurate. General ndfeb magnet manufacturers can choose fluxmeter to test finished products ndfeb magnet. Asked if the magnet is higher, the most accurate method is to use magnetic analyzer to measure the magnet demagnetization curve.
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