Laser cleaning is a new type of environmentally friendly cleaning method. It has the technical advantages of intelligent and controllable cleaning process, accurate and consistent, no damage to the substrate, and convenient operation. Traditional cleaning methods include high-pressure water cleaning, sandblasting cleaning, dry ice cleaning, etc. Today, let's take a look at the difference between chemical rust removal and laser cleaning. Chemical rust removal is the use of pickling, which immerses metal in chemical reagents to chemically react with rust to change its rust composition to ferric chloride or ferric sulfate to achieve the purpose of rust removal.

　　The traditional rust removal process generally uses industrial hydrochloric acid, industrial sulfuric acid and other inorganic acids to remove rust. Although the cost is low, the environmental pollution is high, the wastewater treatment cost is high, and it is restricted by the control of precursor chemicals, which makes the user's approval of the rust removal process and environmental protection standards a major problem in the current situation.

　　Pickling varies widely in production equipment and production environment depending on the scale of production. Such as the sealing of the pickling tank, the corrosion of the equipment, the ventilation and exhaust of the pickling workshop, the discharge and treatment of acid mist, and the treatment and discharge of sewage. The treatment methods and treatment levels vary widely, which will bring many environmental protection problems. And chemical cleaning and rust removal for a long time will also cause harm to the staff.

　　Chemical rust removal is only suitable for small and easily removable metal parts for rust removal, and large metals are not suitable for rust removal with chemical reagents. At this time, the advantages of laser cleaning are reflected. Laser cleaning can not only remove rust from small metals, but also from large workpieces. As long as the laser beam can reach the place, laser cleaning can achieve the effect of rust removal.

　　Laser cleaning has the technical advantages of intelligent and controllable cleaning process, accurate and consistent, no damage to the substrate, and convenient operation. At the same time, it has both economic and social advantages such as green environmental protection, maintenance-free, low operating costs, improved working environment, and labor saving. Laser cleaning industry has outstanding advantages and lacks advantages in other industries. Laser cleaning technology will inevitably become the development trend and first choice of industrial cleaning in the future.