The main function of the hydraulic filter in the process of operation is to filter various impurities in the hydraulic system. The main source of the hydraulic filter is the mechanical impurities that remain in the hydraulic system after cleaning, such as rust, sand, and welding slag. , Iron filings, paints, paint peels, and cotton swarf, etc. Contaminants that enter the hydraulic system from the outside, such as dust that enters through the filler port and dust ring.
Hydraulic filter in the process of work if it produces its impurities, such as the seal will be directly formed by the role of hydraulic debris, the entire equipment movement is mainly for the relative wear and tear of metal powder, oil due to oxidative deterioration of the gum, Asphaltene, carbon residue and so on.
After the hydraulic filter is mixed with the hydraulic oil, it will effectively damage everywhere with its hydraulic oil circulation, which will seriously affect the normal operation of the hydraulic system, such as the small gap between the relative moving parts in the hydraulic element ( In order to count μm) as well as throttling holes and gaps stuck or blocked.
In the process of choosing the filter, we usually consider the filter’s filtering accuracy. In fact, it is important to choose the filter’s filtration efficiency and filter’s service life. At present, the beta value of the filter is generally used in the world to indicate the filter efficiency of the filter. The so-called beta value refers to the ratio of the number of particles in the fluid at the inlet of the filter that is greater than a certain size to the number of particles in the fluid at the outlet of the filter that is greater than a certain size. Therefore, the larger the β value, the higher the filtration efficiency of the filter.