The mold directly affects the quality of the Hall sensor magnetic ring

The mold directly affects the quality of the Hall sensor magnetic ring

Whether it is an automotive sensor magnetic ring or a Hall sensor magnetic ring, most of them use bonded NdFeB magnetic rings or injection molded magnetic rings, and both of them need molds to produce them, and the molds directly affect the Hall sensor magnetic rings. ring quality.

The quality of a sensor magnetic ring is closely related to the mold. It can be said that the mold is an indispensable part of the life of the magnetic ring. Without the mold, it means that there is no magnetic ring, because the mold is used to manufacture the magnetic ring. It is an important tool, and the first step in the production of magnetic rings is to stamp and form them through molds. There are also molds and molding machines, ferrite materials, etc. These are all critical. If you want to have high-quality magnetic rings, you must grasp these few step, because these steps are the beginning of the production of magnetic rings, and the beginning is not done well, let alone the subsequent processes.

First of all, the ferrite material is granulated, ground into powder, and then added to the molding machine without particles, otherwise the surface of the produced magnetic ring will be rough, prone to cracks, brittle and other problems.

The mold must be adjusted properly during molding. This step is very important. If the mold is not adjusted properly, it is easy to damage the mold during stamping, and the produced magnetic ring will also be deformed. At the same time, if you want to have different shapes or sizes of magnetic rings, Make different molds according to the design drawings. When forming, the stamping force must be adjusted properly. If the force is too high, the mold will be damaged. If the force is too small, the density of the magnetic ring produced is not enough, and it is not strong enough. When it is ground, it will also cause problems such as cracks or brittleness of the magnetic ring. So when starting to manufacture magnetic ring products, we must close every step. After the beginning is done, every subsequent process must be followed up and paid attention to. No matter which process is reached, it must be done seriously, so that the magnetic ring can be the best quality product.