Laser cleaning removes lubricants, ferrous and non-ferrous metal impurities on the metal. The cleaning makes the welding and brazing seams of high quality and the welding seams can be seen after cleaning. It is suitable for cleaning the welding surface of steel and aluminum, as the pretreatment of the welding surface that is the cleaning after welding. It is used in industries including the automobile industry, precision tool production and shipbuilding.
The laser cleaning machine is widely used in the bright cleaning of various stainless steels to remove all kinds of dirt such as oil stains, rust, oxide skin, welding spots and etc. After treatment, the surface can be restored to the original stainless steel color.
Laser cleaning welding spot and oxide layer operation process:
Small workpieces can be cleaned automatically. The specific cleaning time is related to the thickness of the oxide scale. Please test the specific value during production. Large workpieces can be designed as a sliding rail platform for cleaning. Hand-held operation and cleaning can be carried out for more complicated parts of the workpiece.
The above is the detailed information of the laser cleaning machine to remove the oxide layer
Traditional cleaning of welding spot and oxide layer
Pickling, shot blasting, sandpaper polishing and etc., however, these methods not only pollute the environment, but are also inefficient, time-consuming and wasteful of human resources.
There is usually a layer of oxide scale and rust on the surface of steel. Oxide scale is the oxide producing when the steel comes into contact with air at high temperature during the rolling process. The oxide scale is gray-black and covers the surface of the steel. The rust layer is a substance containing oxides and water molecules. It is yellow and also exists on the surface of steel. Oxide scale and rust are very harmful to steel. Severe scale and rust can weaken the bearing capacity of structural parts. Crane beams, columns and other structural parts generally have a thickness of about 6-10mm. The weakening of the cross section of the components by oxide scale and rust cannot be ignored. The presence of oxides and rust on steel structures will reduce the quality of paint on steel structures. If the paint is sprayed directly on the oxide scale or rust, the bond between the oxide scale and the surface of the steel is very fragile. For example, elastic deformation, thermal expansion contraction and collision of the stressed components will cause the oxide scale and rust to fall off. Paint also falls off and loses its protective effect.