When many people use powerful NdFeB magnets, they find that the magnets are easily broken and broken. So what are the reasons of NdFeB magnets break?
NdFeB magnet itself is a powder metallurgy formed by crushing neodymium, iron, boron and other elements and then mixing and sintering them. The characteristic of this material is that it is brittle and hard, and feels similar to iron. In fact, the texture itself is very brittle. At the same time, the magnetic properties of powerful magnets are very strong. If a magnet suddenly hits a ferrous material and is quickly attracted to it or if two magnets suddenly collide together, it will be easily broken. This is actually a normal phenomenon.
So why do some people say that strong magnets are easy to break during use. So the reasons for this are as follows.
The first point: During the production process of raw materials, pores appear inside, which will greatly reduce the hardness of the entire magnet.
Second point: The raw materials are reprocessed and produced from second-hand recycled waste, which can easily cause the finished product to break easily.
The third point: Mechanical processing generally uses grinding. If the thermal conductivity of the grinding wheel is not good, the local temperature of the NdFeB blank will be too high, causing surface oxidation and cracks. The finished product can also break easily.
The above three points are an analysis of the reasons why the raw materials and post-processing stages may cause the finished magnet to break easily.
There are also ruptures caused by reasons other than the magnet itself.
The first point: the finished magnet itself is fragile.
Second point: If the external force is too large during the packaging process, it may also cause the permanent magnet to break. To limit excessive external impact.
The third point: workers' irregular operations during the use of finished products.
