Laser cleaning in industry

February 26, 2024

Laser cleaning technology uses nanosecond or picosecond pulse laser to irradiate the surface of the workpiece to be cleaned, causing the surface of the workpiece to absorb the focused laser energy in an instant, forming a sharply expanding plasma (highly ionized unstable gas), making it a cleaning method that vaporizes or peels oil stains, rust spots, dust residue, coatings, oxide layers or film layers on the surface, thereby effectively removing surface attachments.

latest company news about Laser cleaning in industry  0

Applicable substrate
In the field of industrial applications, laser cleaning objects are divided into two parts: base materials and cleaning objects. The base materials mainly include surface contamination layers of various metals, semiconductor wafers, ceramics, magnetic materials, plastics, optical components, and other materials. The cleaning objects mainly include surface contamination layers for various metals, semiconductor wafers, ceramics, magnetic materials, plastics, and optical components. It is widely used in the industrial field for rust removal, paint removal, oil stain removal, film/oxide layer removal, and cleaning of resin, glue, dust residue, etc.

Advantages of laser cleaning
Currently, cleaning methods that are widely used in the cleaning industry include mechanical cleaning, chemical cleaning, and ultrasonic cleaning. However, their applications are greatly restricted due to environmental protection constraints and the requirements of the high-precision market. Laser cleaning machines have obvious application advantages in various industries.
1) Automated assembly line: Laser cleaning machines can be integrated with CNC machine tools or robots to implement remote control cleaning, which can realize the automation of equipment, form product assembly line operations, and intelligent operations.
2) Accurate positioning: Optical fiber transmission is used to guide the laser to make it flexible, and the light spot is controlled to move at high speed through the built-in scanning galvanometer, which facilitates non-contact cleaning of special-shaped parts, holes, grooves, and other corners that are difficult to reach with traditional cleaning methods. Ground laser cleaning treatment.
3) No damage: A short-term impact will not heat the metal surface and will not damage the base material.
4) Good stability: The pulse laser cleaning machine's pulse laser has a long service life, usually up to 100,000 hours, with stable quality and good reliability.
5) No environmental pollution: No chemical cleaning agents are required and no cleaning waste liquid is produced. The pollutant particles and gases generated during the laser cleaning process can be collected and purified by portable exhaust fans to avoid environmental pollution.
6) Low maintenance cost: There is no consumption of consumables during the use of the laser cleaning machine, and the operating cost is low. In the later period, the lens only needs to be cleaned or replaced regularly, so the maintenance cost is low and it is nearly maintenance-free.

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Application industry
Typical applications of laser cleaning include mold cleaning, industrial rust removal, old paint and film removal, pre-welding, and post-welding treatment, ester removal of precision parts, decontamination and oxidation removal of electronic components, cleaning of cultural relics, etc. Widely used in metallurgy, molds, automobiles, hardware tools, transportation, construction appliances, machinery, and other industries.