Application of Laser Cleaning in Steel and Its Derivatives Industry

Application of Laser Cleaning in Steel and Its Derivatives Industry

The steel industry is an important foundation for the development of the national economy. With the expansion of the development scale of the steel industry, the competition in the steel and its derivative products industry has become increasingly fierce. Production quality and green environmental protection. As a green and environmentally friendly new cleaning method, laser cleaning has unparalleled advantages in its diversity and adaptability compared to the application of traditional cleaning processes on steel.

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01 The variety of laser cleaning

Laser cleaning uses a high-energy pulsed laser beam to irradiate the surface of the workpiece, so that the foreign matter on the surface different from the base material (substances different from the base material) instantly evaporates or expands and peels off. While removing the foreign matter, it also protects the base material from being worn. At present, there are more applications including laser rust removal, oil removal, paint removal, coating removal, and oxide removal on the surface of steel.

02 Adaptability of laser cleaning

Laser cleaning is suitable for all kinds of materials, such as steel, aluminum, non-ferrous metals, ceramic insulators, glass, stones, etc. It is most widely used in steel and its derivatives, especially in industrial applications.

Laser cleaning of strips before welding

The laser cleaning machine can be integrated with CNC machine tools or robots to implement remote control cleaning, which can realize the automation of equipment, form product line operations, and operate intelligently. Production line laser cleaning is mainly used in steel mills to remove coating on the surface of strips, as the last process before welding. Pre-weld laser cleaning can replace the grinding and sandblasting process required by traditional welding methods, while reducing the formation of pores and defects in the weld, ensuring the quality of the weld.

Laser cleaning before welding

Production line laser cleaning is also applied to post-welding laser cleaning. The heat treatment in the welding process will cause oxidation at the interface to form an oxide layer. Clean the oxide skin, slag skin, spatter, etc. after welding in time, which is conducive to the observation and inspection of welding defects after welding. Guarantee the surface quality of the product. Laser cleaning after welding can replace dangerous chemical cleaning methods, and use the same production line to clean stainless steel immediately after welding, effectively improving production efficiency.

Profile steel renovation anti-corrosion treatment

The most effective way to prevent corrosion of steel structures is to apply anti-corrosion coating on the surface of profiled steel pipes. Before applying the first primer, it is necessary to remove impurities such as dust and oil stains on the surface, and thoroughly remove rust spots, residual oxide scale, old paint and residues on the surface. rust. The powerful laser cleaning function can not only clean dust, oil, rust, oxide scale, paint, etc., but also accurately locate and clean a certain part in a targeted manner without damaging the substrate material.

Refurbishment of building steel structure

Steel structure building is a new type of building system. With the increasingly mature application technology, it has gradually become the mainstream construction technology, mainly used in workshops, gymnasiums, railway stations, TV towers, iron-making blast furnaces, derricks, etc. Coating the anti-corrosion coating on the surface of the steel pipe is the most effective method to prevent the corrosion of the steel structure. Although the steel structure has been subjected to anti-corrosion treatment in the early stage of construction, the surface coating will fall off and oxidize due to environmental and construction factors, resulting in corrosion. Therefore, regular renovation of corroded parts can effectively control its adverse effects on the entire building. First of all, it is necessary to clean up the foreign matter in the corrosion part, including paint, rust, oxide layer, etc., which will reduce the adhesion between the anti-corrosion layer and the steel structure, causing the anti-corrosion layer to crack or fall off. Laser cleaning can accurately locate a certain part, accurately clean the surface paint, rust, oxide layer, etc., and the generated pollutant particles can be collected for waste to avoid environmental pollution.

Refurbishment and maintenance of metal parts

The cleaning of metal parts should be very careful. First, ensure that the metal parts will not be corroded, and secondly, the cleaning process will not produce residues, including dirt and coatings that are not conducive to subsequent processing. Laser cleaning is “dry” cleaning and can only clean surface coatings that are different from the substrate material without damaging the substrate. Cleaned metal parts can go directly to the next production process.

Auto parts laser rust removal

The pulsed laser used in the laser cleaning machine has a long service life, usually up to 100,000 hours, with stable quality and good reliability. There is no consumption of consumables during use, and the operating cost is low. In the later period, the lens only needs to be cleaned or replaced regularly, and the maintenance cost is low, which is close to maintenance-free. It is very common in steel and derivative industries.

This laser cleaning machine is designed with many advantages and features. If you would like more information, please feel free to contact us.


Post time: Jul-19-2022

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