Laser Cleaning Machine Wish Happy New Year 2019
The new year 2019 is already coming, laser cleaning machine offer the best wishes to all of you!
Laser cleaning equipment is a new generation of industrial surface cleaning laser system. It adopts the advanced laser source, laser optical scanners and control system to meet the requirements of metal surface cleaning process. It can be customized according to customer requirements to develop a dedicated cleaning system. Widely used for the surface laser degreasing, laser paint removal, laser removal of zinc, laser film removal, laser cleaning, such as coating, etc
The laser-based surface pretreatment of industrial components and surfaces is often an economical alternative to conventional component cleaning. In addition to its low energy consumption, the media-free process does not require any chemicals or abrasives, which is why cleaning with light is particularly sustainable and environmentally friendly.
To avoid damaging the surface of the component, industrial cleaning lasers with short pulses are used. Depending on the intensity, pulse duration, and wavelength, different effects and surface properties can be adjusted. The spectrum ranges from gentle cleaning to selective surface structuring. The effect of laser radiation depends on the absorption of the processed material (FIGURE 1).
FIGURE 1. The absorption spectrum of different metals is shown. (Courtesy: Laser Zentrum Hannover [LZH])
Metals have a high reflectivity for the typical solid-state wavelength of 1064 nm, while impurities and oxides on the surface will absorb the laser radiation better. Moderate beam intensities can therefore be used to remove contamination from the surface without damaging the metal underneath. When cleaning with light, organic and acidic oxide contaminations are efficiently blown off from the surface of metallic components.
By intensifying the laser parameters, metallic materials in the uppermost boundary layer (typically up to 5 µm) can be modified to create structures or roughness. One example is to improve the corrosion behavior of light metals and to increase the surface area by roughening.
Laser beam cleaning offers high precision and reproducibility, therefore saving enormous costs in industrial series production. The investment in current laser technology is often many times cheaper than that in, for example, wet chemical alternatives. In addition, the running costs of highly efficient laser machines are usually significantly lower because of their low energy consumption (a few kilowatt hours) and moderate maintenance requirements. Significant savings in component unit costs can thus be achieved, especially with large part quantities and fully automatic processes.
The flexibility that laser cleaning offers makes it suitable for various industrial applications, including pretreatment of joints for bonding and welding; accurate contour removal of coating to, for example, provide electrical contact; paint stripping for adhesive pretreatment; and post-treatment of welding seams and descaling of steels prior to varnishing/cathodic dip coating