Magnets used on plastic note information _ ndfeb strong magnet manufacturers
In many cases, the client will need to use the magnet with plastic injection molding, we call the magnetic components.
There are usually two kinds, respectively is ndfeb magnetic components with ferrite magnetic components, ferrite not much said, because of its good temperature resistance, basically do not have what problem, mainly ndfeb magnetic components, powerful magnets used on injection molded parts when we have those details need to pay attention to?
Injection molding magnets is the magnetic powder, resin (
PA6, PA12, PPS, etc. )
Mixed together, additives or other materials, with special magnetic injection molding machine produced by means of injection molding magnets.
Injection molding magnets magnetic though a little lower than the sintering magnetic, but it has precise dimension, the advantages of light weight, thin wall and complex shape, and magnetic can stability, high temperature resistant,
150 ~ 200 degrees don't demagnetization)
, together with other metal parts forming.
Can both axial magnetization, unipolar also radial magnetization, multistage axial radial composite can also be the magnetization.
Product appearance is bright and clean flawless, high dimensional accuracy, good consistency, no subsequent processing, stable performance, the seismic impact resistance, the product can be complicated, is indispensable to precision micromotor and automation industry source and constant magnetic source, because it has no substitute other magnet and unparalleled superiority.
Mainly used in automation equipment, permanent magnet dc motor, axial flow fan, frequency conversion air conditioner motor, frequency conversion energy-saving fan motor, fan motor frequency conversion energy-saving, energy-saving instrument, frequency single-phase energy saving motor, high-performance micro-motor (
Stepper motor, brushless motor)
, auto motor, copiers, laser printers, magnetic control sensors, precision instrument, etc.
Injection we all know, it is need after high temperature formed, only after high temperature molding, injection molded parts will come out.
In this case, if the magnet into the plastic molding out together, then the magnet is easy to appear the demagnetization, even no magnetic.
How to solve the magnet injection molding magnets manufacturer not demagnetization?
1, use high temperature resistant magnetic materials to replace the ordinary magnetic material, but the cost will increase, the customer need to test is a magnetic, one is the heat resistance.
2, plastic mould for good put the position of the magnet, the back through the tools again, subsequent tolerance magnet do take positive tolerance, avoid the magnet tightly, not fall out.
That is about a powerful magnet on the injection molded parts using two considerations, through the two ways to avoid the magnet in the case of injection molded parts when using a magnet demagnetization.