▎ 摘 要
NOVELTY - Manufacturing permanent magnetic material involves using the raw material to prepare the blank by smelting, preparing powder, sintering the blank, cutting the blank, punching, cleaning, electroplating, and magnetizing to obtain the inner core, and melting the silica gel, and forming two shells respectively with a convex rod and a draw hook through a mold, sleeking of the two shells are sleeved on the inner core, the convex rod and the hook are connected to obtain the permanent magnetic material. USE - Method for manufacturing permanent magnetic material. ADVANTAGE - The method can improve the service life and anti-collision ability of the permanent-magnet material.