Irregular shape industrial motor magnets.

Listing Description

l Complex shapes with high precision.

l Adjustable magnetic properties.

l Insert molding.

Applications

Sensors,Linear actuators,Microphone assemblies,Magnetic separators,DC and servo motors,SpeakersPrinters,Magnetic hooks,Computer rigid disc drives,Beam controls,Intelligent toys,MRI/NMR Electric component,etc.

Injection molded NdFeB

Besides sintered magnets and bonded magnets categories, injection molded magnet is one of the more important developments in magnetic materials, it has opened a new world of application opportunities. Similar to plastic injection molding, magnet injection molding process is by mixing the magnetic powder together with polymer binder, heated in the injection machine and shooting the melted mixtures into the mold to achieve different shapes of products.

Features and benefits of injection molded NdFeB

l Injection molded magnets can be of very complex shapes with high precision, typically, tolerance is+/-

0.005mm, it is suitable for high precision parts

l By doing insert molding, magnetic material can be directly molded into or onto other assembly components without further assembly process

l Magnetic powder is neodymium-iron-boron (NdFeB), either isotropic or anisotropic. And Polymerbinders utilized are PA6,PA12 and PPS

Maximum application temperature is related with magnetic powder and polymer binder. NdFeB material suffers significant irreversible magnetic loss above 120°C, regardless of which binder is used. And on the other hand, the HDT (heat deformation temperature) of the binders is low, when application temperature exceeds the HDT, the binder in injection molded magnet will become soft at some extent, which jeopardizes the product. Maximum application temperatures are listed in above sheet.

Injection molded Ferrite