Different sexes of rubber magnets
The so-called rubber magnet or plastic magnet is the "bonded permanent magnet material" in the magnetic material. It is to add an appropriate amount of permanent magnetic material tiny particles (needle-shaped particles are the best, like a tiny compass) into the rubber or plastic material, and the permanent magnetic material particles are fully mixed with rubber or plastic, dispersed evenly, and then pressed by rubber or The plastic manufacturing process is processed into the required size and shape, which is what people call rubber magnets or plastic magnets. For example, the door seal of a refrigerator is the most common rubber magnet.
Rubber magnets can be divided into the same sex and the opposite sex, and the opposite sex is better. On this basis, it can be divided into single-sided and double-sided magnetics, and you can choose to have adhesive or no adhesive.
Isotropy means that no external magnetic field is required when pressing and forming rubber magnets or plastic magnets. In this way, the direction of the tiny permanent magnet particles inside is randomly arranged, and there are all directions, the "isotropic" magnetic performance is lower, and the single production cost is also lower.
Anisotropy means that when pressing and molding rubber magnets or plastic magnets, a magnetic field needs to be added. In this way, the direction of the tiny permanent magnet particles inside is arranged in one direction, the stronger the external magnetic field, the higher the consistency of the arrangement and the higher its magnetic performance. Of course, the cost is also higher. This can satisfy different users!
Magnetic rubber sheets (rubber soft magnets) are made by adding magnet powder and various compounding agents to rubber through banburying, calendering vulcanization, and withdrawal vulcanization. It can be made into single-sided and double-sided magnetized. Its main physical properties are high specific gravity, high hardness, good flatness and brightness, good wear resistance and high pressure resistance, and its length It can be cut or rolled according to actual needs.
Due to the high plasticity of the rubber magnetic material itself, the finished or semi-finished products can be cut, punched and mounted with other materials at will, and it is not easy to demagnetize, and it also has good corrosion resistance.
Compared with the magnetism between the opposite sex rubber magnets, the heterosexual rubber magnets have higher magnetic performance.
The density and temperature of the same-sex rubber magnets are lower than those of the opposite-sex rubber magnets.
Same-sex rubber magnets are mainly used in refrigerator magnets, printed products, stationery, and promotional products. Anisotropic rubber magnets are mainly used in micro motors, computers, laser printers, copiers, magnetic toys and other fields.
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