Generation and harm of impurities filtered by hydraulic filter

2020-05-14 13:40:18

As we all know, the function of hydraulic filter is to filter impurities. How are these impurities produced? In addition, if not filtered, what's the harm? Let's take a look today.

Production of impurities filtered by hydraulic filter, residual mechanical impurities in the hydraulic system after cleaning, such as rust, casting sand, welding slag, scrap iron, cotton yarn, etc., external impurities entering the hydraulic system, such as oil filler, dust of dust ring, etc; Impurities produced in the process of operation, such as chips formed by the hydraulic action of seals, metal powder produced by relative wear, and colloid produced by oil oxidation and metamorphism, etc.

For example, a small gap is formed between a moving part in a hydraulic component and an orifice and a clearance card. Block and destroy the oil film between moving parts, scratch the gap surface, increase internal leakage, reduce efficiency, increase heat, intensify the chemical action of oil, and make oil deteriorate.

According to the relevant statistics, most of the faults in the hydraulic system are caused by impurities. Therefore, it is of great significance for the hydraulic system to keep the oil clean and prevent the oil pollution.