Density detection after high-temperature sintering

Appearance scale inspection after high-temperature sintering

Analysis of carbon, oxygen, and nitrogen after high-temperature sintering

Finally, a demagnetization curve is drawn using a magnetic tester to determine whether the blank meets the national standard

Due to the large proportion of neodymium, iron, and boron being composed of iron elements, neodymium, iron, and boron are highly susceptible to oxidation when exposed to air or humid environments for a long time. Magnet electroplating is an important process for beautifying the appearance of magnets and adding magnets for preservation. The surface treatment of magnets mainly includes zinc, black zinc, nickel, black nickel, copper, gold, silver, epoxy resin, etc. The color and preservation time are also different depending on the surface electroplating, Each has its own advantages and disadvantages.

Magnetization in the order of magnet orientation and formation is to magnetize magnetic materials or add magnetism to magnets that lack magnetism. Generally, the magnetizable object to be magnetized is placed in a strong magnetic field formed by a coil with direct current passing through, and the magnetic field inside the magnet is catalyzed by an external magnetic field.