In today’s society, magnets have become one of the indispensable materials in most industrial sectors. Magnetite is a very important type of magnet materials, and its chemical formula is Fe3O4. In this paper, magnetite will be described in detail from three aspects: diversified size selection, magnetic force and durability, and temperature.
Regarding magnetite, we can meet a wide range of highly customizable magnet solutions to meet the needs of different projects. And its diverse size selection can meet the requirements of different sizes of magnet materials in different industries, so that the solution can be flexibly used and meet different needs.
I. Magnetic Force and Durability
Magnetic force is one of the most remarkable properties of magnetite, which has strong magnetism in magnetic field and can be used in various industrial fields that require magnetic force as positioning or adsorption requirements. Durability is another important consideration, because the strong magnetic force, friction and electrochemical reaction of magnetite material will cause certain wear, corrosion and attenuation to its surface and internal structure. Therefore, the suitable service life of magnetite is one of the requirements for its durability.
In addition, there are some additional considerations in use. For example, whether magnetite materials often come into contact with liquid, high temperature, low temperature or bottleneck substances of various chemical properties, etc. At this time, we need to pay special attention to its durability, chemical stability, chemical reaction and other properties.
Second, a variety of size choices
Magnetite materials are very flexible in size selection and can meet the requirements of different sizes. It should be noted that the difference in size of magnetite with the same material specification will also directly affect its magnetic force. For example, the smaller the size of magnetite, the lower its magnetic force will be compared with a larger type of magnetite.

However, for some long and strong types of equipment, large magnetite will not be conducive to the installation and maintenance of equipment. In these cases, it is more appropriate to choose a small magnet.
Third, the temperature
Magnetite also has its specific limitations in temperature. Because with the increase of temperature, the energy of molecules in the environment and the looseness of substances will increase. This will lead to the increase of thermal motion components of molecules, which will have an effect on the magnetic moment direction effect of ordered magnetic micro-intervals and weaken their adsorption or magnetic ability. At the same time, too high temperature will cause magnetite to lose its magnetism and cause permanent damage. Therefore, different magnetite materials should be selected according to different needs and their suitable temperature range should be properly measured to ensure their normal use.

To sum up, magnetite needs to choose appropriate materials to meet its specific needs in three aspects: diverse size selection, magnetic force and durability, and temperature. The important role of magnet materials in industrial field should not be underestimated. We expect more enterprises or individuals to pay attention to the selection and application of magnet materials, and introduce more excellent products in continuous practice to further promote the development of the whole industry.