There are many kinds of magnets on the market. For example, ferrite magnets are raw materials, which are ground and pressed in the model, then sintered and finally magnetized, and Al-Ni-Co is alloy and finally magnetized. Natural magnets are so rare that they are hardly used to make products.

Manufacturing technology of factory magnets

raw material

The main raw materials of neodymium magnet are: rare earth metal neodymium, rare earth metal praseodymium, pure iron, aluminum, ferroboron and other rare earth raw materials.

Neodymium magnet machining tool

There are special slicers, wire cutters, flat mills, double-sided machines, punches, chamfering machines and plating equipment.

process flow

The manufacturing processes of neodymium magnet, samarium cobalt magnet, Al-Ni-Co magnet and ferrite magnet are also different. Technically, there are sintered neodymium magnets and bonded neodymium magnets. We mainly talk about sintered neodymium magnets.

Batching → smelting and ingot making → crushing → pressing → sintering and tempering → magnetic detection → grinding → pin cutting → electroplating → magnetization → finished product. Among them, batching is the foundation and sintering tempering is the key. Neodymium magnet production tools include smelting furnace, crusher, ball mill, jet mill, press forming machine, vacuum packaging machine, isostatic press, sintering furnace, heat treatment vacuum furnace, magnetic performance tester, Gauss meter and so on.