[Metal Cleaning Agent] The main cleaning methods of oil stains on metal surfaces

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Formetal cleaning agentMany manufacturers do not know how to choose the right cleaning agent. In fact, metal cleaning agent is mainlyOil stain on metal surfaceCleaning, this has always been a big problem in the operation of the factory, many factories because of improper maintenance of metal equipment, resulting in the interruption of production operations, affecting the performance of enterprises profit. A large part of the reason is that enterprises do not understand the maintenance of metal equipment, do not know how to carry out the correct cleaning and maintenance. So, what are the cleaning methods of oil on the metal surface?metal cleaning agentHow to choose?


   Degreasing cleaning method

    Characteristics of cleaning method

  Using tools and media

     Scope of application

      soaking cleaning method

  1Fast, can quickly dissolve two types of grease, no corrosion of the workpiece, degreasing is not complete; solvent toxic, flammable, high cost.

  2The acid-base chemical medium used has low cost and simple equipment, but the soaking time is long and the efficiency is low.

   1Organic solvent immersion

   2Soaking in chemical medium

  1It is used for workpieces with serious oil pollution and metals corroded by chemical media.

2Suitable for ordinary steel workpiece degreasing.




       steam cleaning method

  1The principle is the same as the soaking method, but due to the high temperature and the effect of air flow, the oil dissolution rate can be improved, the work efficiency can be improved, and the equipment is complicated.

  2A proper amount of chemical medium, such as alkali, can be added. Due to the high temperature and air flow, the oil removal speed is faster than the general soaking method. The equipment is complex and the cost is high.

  1Organic solvent vapor degreasing

  2Water vapor degreasing

1Apply to the general workpiece degreasing or organic solvent degreasing after further degreasing.

2Not applicable to certain non-ferrous metals and precision parts.

3Suitable for general workpiece degreasing, good effect, high efficiency. 

     electrochemical cleaning method

1The oil removal speed is fast, the effect is good, and can remove other attachments attached to the metal surface at the same time. DC power supply is required, which is easy to permeate hydrogen, and it is difficult to remove the oil in the slit.

2No hydrogen seepage, but the surface of the workpiece may cause corrosion.

3Compared with the use of cathode or anode alone, the oil removal effect is good.

1Cathode electrolysis oil removal method

2Anode electrolytic degreasing method

3Combined electrolysis of cathode and anode  oil removal method

1Applicable to the general workpiece degreasing or organic solvent degreasing further degreasing.

2Not applicable to certain non-ferrous metals and precision parts.

3Applicable to general workpiece degreasing, good effect, high effect.

     ultrasonic cleaning method

Due to the addition of ultrasonic waves, the solvent has a shock, which accelerates the dissolution or separation from the surface. The oil removal efficiency is high, and the quality is better than the simple solvent and chemical oil removal method, but the cost is high.

The addition of ultrasonic waves in the immersion method or electrochemical degreasing device

It is suitable for workpieces with great difficulty in oil removal, especially for parts with complex shapes.

 surfactant degreasing method

Room temperature operation saves energy and has a good degreasing effect, but some surfactants are more expensive and degreasing costs are higher. There are many types of surfactants with different properties.

Use a variety of degreasing cleaners such as detergents, detergents and liquid soaps

Suitable for all kinds of workpiece degreasing, the key is to choose the type of surfactant.

       Knowing so many cleaning methods, how should metal cleaning solvents be selected? You can look at this article 《Do you know these secrets of metal cleaners?》。