What is Laser Rust Removal?
Laser rust removal is a technology that uses high-energy beams emitted by lasers to clean metal surfaces. Lasers can produce beams of different wavelengths, powers and pulse widths. According to different metal materials and pollution levels, appropriate laser parameters can be selected to achieve the best cleaning effect.
How Laser Rust Removal Works?
Laser rust removal utilizes the high-energy characteristics of laser beams, focusing them on the rust layer on the metal surface. Through the interaction of laser and metal, high temperature and energy are generated, causing the rust layer to rapidly heat up and expand, ultimately detaching it from the metal surface. This process stimulates the natural vibrational frequency of the metal surface, swiftly displacing the rust layer or contaminants, leading to their quick removal from the metal surface.
Laser Emission: The laser device generates a high-energy, high-intensity laser beam.
Beam Irradiation: The laser beam is directed onto the surface of the material that needs treatment, i.e., the contaminated surface.
Energy Absorption: The contaminant layer absorbs the laser energy, causing the pollutants to heat up and undergo phase transition.
Plasma Formation: The energy absorbed by the contaminants leads to their rapid expansion, forming a highly ionized plasma – an unstable gas filled with high-energy electrons and ions.
Shock Wave Generation: The rapid expansion of the plasma creates a shock wave, which propagates through the contaminant layer.
Debris Removal: The shock wave fractures the contaminant layer into fragments, ejecting them from the material surface.
Continuous Wave: Continuous wave laser cleaning utilizes a continuous beam of laser light to remove rust and contaminants from metal surfaces. This method is effective for larger areas but requires careful control to prevent excessive heating and damage to the substrate. Continuous wave laser systems are more suitable for large-scale cleaning projects. These laser cleaning systems provide a steady, low-power laser beam, allowing them to effectively treat extensive surface areas.
