The magnetic refraction of a single-sided magnet is like the refraction of the signal by a satellite pan or the refraction of light by a flashlight pan, and its refraction effect is mainly determined by the following three aspects:

1. Material: The choice and thickness of the material are closely related to the distance between the magnet and the material. Pure iron sheet is prone to magnetic leakage, and refraction will increase after special treatment, but it cannot be 100% shielded, but the effects of materials made by different manufacturers are also different.

2. Angle: According to the principle of refraction, curved materials have the best effect, and right-angle materials have greater refraction loss.

3. Space: The magnetic field lines are like mobile phone signals in the air, and they need space to be reflected. If the flashlight pot is completely wrapped on the bulb, the use effect is definitely not good, because a lot of light refraction is lost.

In some cases, only one side needs to be magnetic, and if the other side is magnetic, it will damage or interfere with the product itself, so a single-sided magnet is needed at this time.

In some cases, the magnet on the packaging box only needs to be magnetic on one side, and the other side is optional, and it is useless to have magnetism. In this way, the use of single-sided magnetism will greatly reduce the cost and save magnetic materials.

In the magnet industry, single-sided magnets and double-sided magnets are essentially the same. They are both neodymium-iron-boron magnets, but single-sided magnets are relatively low in cost. They are assembled from a single iron shell and a magnet, so they are wrapped. One side of the magnetism will be shielded, the magnetic force will be refracted to the other side, and the other side will be enhanced. The double-sided magnet is an ordinary wafer magnet, and it is not wrapped.