Many industries are applied to filters as small as household kitchen and bathroom filters, as large as the petrochemical industry, especially in the petrochemical industry. The filter cartridge is mainly used to filter out impurity particles suspended in the oil. Purify the oil quality. So do you know how the metal filter screen filters out suspended particles?

　　The specific gravity of metal is larger than that of oil and water. However, the metal suspended in the oil is in the form of fine particles, and oil and water are infiltrating liquids to the metal, so many oil molecules are adsorbed around each metal particle, making it scattered in the oil. The specific gravity of the metal particles is much smaller than the specific gravity of the bulk genus. These particulate metals are subjected to the buoyancy of the oil, so they are precipitated in a short time. If the proportion of non-metallic impurities is smaller, they are less likely to precipitate. Especially limited by the size of the fuel tank, the oil cannot be kept still for a long time, and the problem of oil residue purification cannot be solved by the precipitation method. Even if the baffle is added, it will not help. Using ordinary oil filters, the effect is not good. This is because the area of ​​the filter is affected by lanthanum, and a large amount of impurities in the oil will quickly block the oil filter. Therefore, to completely solve the problem of oil filtration, the following aspects need to be considered:

　　1) Enlarge the filter area

　　2) Gradually reduce the amount of impurities on the metal filter to improve the liquid passing capacity;

　　3) Multi-level filtering step by step.