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What are the magnets that require mold to produce?

Addtime:2022-09-13 15:15:27 Click:404

A set of magnet molds can be as low as a few hundred yuan and as high as tens of thousands of yuan. So which materials of magnets need new molds? Which magnets can be mass-produced without mold opening? Today, the magnet manufacturer Xiaofu will talk about this issue.


The types of permanent magnets commonly used in the market are: sintered NdFeB conventional shape magnets (circular, square, cylinders), irregular shaped NdFeB magnets,  common ferrite magnets, ferrite magnetic tile, irregular shaped ferrites, samarium cobalt magnets, Bonded NdFeB, injection molded ferrite, injection NdFeB, etc. Do you know which ones need to be processed with molds?

arc-shaped ceramic magnet

The above picture of the magnet sample is an arc-shaped ceramic magnet. If the size of the magnet you want to process does not have a mold, you also need to open the mold.


First of all, neodymium magnets, also known as strong magnets, are the strongest magnetic materials in magnetic materials. Its advantages are strong magnetic force, the size can be customized according to customer requirements, no need to open a mold, even the special-shaped neodymium magnet does not need a mold.


The neodymium magnet mentioned above is a sintered NdFeB type. In addition to sintered NdFeB, there is another type of NdFeB is bonded NdFeB. It is necessary to open the mold. If you do not want to open the mold, you can find a magnet factory with the bonded magnet specification.

 

Ferrite magnets, also known as ordinary magnets, are much worse than NdFeB, but they are relatively inexpensive and therefore widely used. Production requires molds, but for some of the common size magnet, manufacturers have molds that do not require customers to open molds. Injection molded ferrite composed of magnetic powder + ferrite also requires a mold, unless you can find the exact same size as yours.

 

Samarium cobalt magnets: mainly used for high temperature resistant products, can withstand more than 300 degrees, because the price is higher, so it is not used much. Generally, it is not necessary to open the mold.

 

Therefore, the magnet materials that need to be processed by opening the mold are: ferrite, even an ordinary circular ferrite is produced and processed with a mold, but the magnet manufacturer has a mold that you do not need to produce, and other injection molding ferrite Body, multi-pole ferrite all need mold processing, and NdFeB material needs mold for bonding neodymium magnets.


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Can magnets open molds? How long does the mold take?

Tags: Mold magnet
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