1. Mechanical cleaning
Mechanical cleaning is the use of mechanical equipment and cleaning agents to remove dirt and impurities from metal surfaces. The commonly used mechanical cleaning methods include ultrasonic cleaning, drum cleaning, and high-pressure water jet cleaning. These cleaning methods can effectively remove dirt and impurities from the metal surface without causing damage to the metal surface.
2. Chemical cleaning
Chemical cleaning is the use of chemical reagents to remove dirt and impurities from metal surfaces. Commonly used chemical cleaning agents include acids, alkalis, organic solvents, etc. They can react chemically with impurities such as oxides and oils on metal surfaces to remove them.
3. Electrochemical cleaning
It is the use of electrolysis to remove dirt and impurities from the metal surface. In the electrochemical cleaning process, the metal surface is used as a cathode or anode to generate gases such as hydrogen or oxygen through electrolysis, thereby blowing out or decomposing impurities on the metal surface.
4. Plasma cleaning
It is the use of plasma to remove dirt and impurities from the metal surface. In the plasma cleaning process, high-energy ion beams are used to bombard the metal surface, causing surface dirt to be removed by impact, thus achieving the goal of cleaning the surface.
Main matters for cleaning metal parts:
1. Selection of cleaning agent: Select a suitable cleaning agent based on the properties of the metal material and the type of surface dirt. Generally speaking, for metal materials with strong corrosion resistance such as stainless steel, acid pickling agents can be chosen; For light metal materials such as aluminum and magnesium, alkaline cleaning agents can be chosen; For organic impurities such as oil stains, organic solvents can be chosen.
2. Cleaning temperature and time: Appropriate temperature and time can improve the cleaning effect. Generally speaking, the higher the temperature, the longer the cleaning time, and the better the cleaning effect. However, excessive temperature can lead to metal surface oxidation, reducing the strength and corrosion resistance of metal materials. Therefore, temperature and time should be reasonably controlled during the cleaning process.
3. Cleaning equipment: Choosing appropriate cleaning equipment can improve cleaning efficiency and reduce operational difficulty. Commonly used cleaning equipment includes slot cleaning machines, spray cleaning machines, ultrasonic cleaning machines, and high-pressure water jet cleaning machines. When using mechanical cleaning equipment, it is necessary to ensure stable, safe and reliable equipment performance, and avoid surface damage or scratches on metal parts caused by equipment failures or improper operation.
Before using any cleaning method, the material, surface condition, and required cleanliness level of metal parts should be evaluated, and appropriate cleaning methods and reagents should be selected. When using chemical cleaning agents, attention should be paid to selecting reagents with good chemical stability, low toxicity, and environmental friendliness to avoid harm to operators and the environment. At the same time, attention should be paid to controlling operating parameters to avoid excessive damage or deformation to the surface of metal parts; Pay attention to environmental issues at the same time.
