What are the cleaning contents of industrial cleaning?

1. Physical cleaning is a method of cleaning by using the principles of mechanics, acoustics, optics, electricity and heat and relying on the action of external energy, such as mechanical friction, ultrasound, negative pressure, high pressure, impact, ultraviolet rays and steam. Remove the dirt on the surface of the object without changing the pollution composition. That is, a method that does not change the original chemical molecular composition. 2. Chemical cleaning is a method of removing dirt on the surface of an object by using chemicals or other solvents under the action of chemical reactions. For example, various inorganic or organic acids are used to remove rust and scale on the surface of objects, and oxidants are used to remove stains on the surface of objects. Chemical agent is to remove surface pollution or coating (such as scale layer) by chemical reaction with it, such as pickling and alkali washing scale layer. In order to protect the substrate from corrosion in chemical cleaning or control the corrosion rate in an allowable range, an appropriate amount of corrosion inhibitor and additives with activation, infiltration and wetting effects are usually added to the chemical cleaning solution. Methods: Immersion method, circulation method and cleaning method in operation are also called non-stop chemical cleaning method. Hangzhou Xinyue Professional provides industrial cleaning.