Common cleaning methods for vacuum materials and vacuum systems
In the application of vacuum, the vacuum system and vacuum materials will inevitably be contaminated by various dust, oxides and grease due to various factors. When the pollutants affect the operation of the vacuum system or the sanitation of the vacuum material, it is necessary to clean the vacuum system and vacuum material. Here, screw vacuum pump manufacturers on the vacuum material and vacuum system cleaning commonly used methods are what.
Solvent cleaning is the most common method in vacuum system cleaning. Common cleaning solvents include organic solvents, water containing detergent, dilute acid, alkali, petroleum distillates, various metal cleaning agents and so on. According to the different pollutants, need to use different solvents for cleaning. If mineral oil needs to use organic solvents, rust needs to use acid metal cleaning agent.
Ultrasonic cleaning is to use the role of ultrasonic voids to clean the target, can achieve a strong physical cleaning effect, remove strong adhesion pollutants. Ultrasonic cleaning can enter the complex shaped hole, which is impossible to achieve by many cleaning methods. Ultrasonic cleaning in the application, according to the different pollutants, with various cleaning solvents.
Three.Steam degreasing cleaning.
Steam degreasing cleaning is suitable for cleaning surface grease film and lipid film. Some of the substrate with strong attachment or more serious pollution after swabbing or ultrasonic cleaning, with steam degreasing cleaning can achieve good cleaning effect, often used in the last step of the glass objects cleaning.
Four.Electrolytic erosion cleaning.
Electrolytic erosion cleaning is similar to electrolytic polishing, refers to the use of electrolysis in the solvent, remove the thin rust on the surface of metal parts or oxide film and other pollutants, mainly used for higher chemical stability of alloy parts, such as stainless steel, heat-resistant steel, nickel-based alloy.
Five.Heating and irradiation cleaning.
Heating cleaning is mainly used to heat the components under normal pressure or vacuum to make the volatile pollutants on the surface evaporate to achieve the purpose of cleaning. Irradiation cleaning is to use ultraviolet irradiation to decompose hydrocarbons on the surface of components.
Discharge cleaning is generally used in high vacuum, ultra - high vacuum system cleaning. The desorption of gases and the removal of certain hydrocarbons by electron bombardment. The effect of discharge cleaning depends on the motor material, geometry and its relationship with the surface.
Nitrogen cleaning is mainly to take advantage of the characteristics of nitrogen on the surface of the material, such as small adsorption heat, short retention time, easy to be pumped away. Nitrogen is used to flush the contaminated vacuum system, and squeeze out the adhesion space of water gas and other gas molecules to shorten the pumping time of the vacuum system.