Development And Principle Of Handheld Laser Cleaner

Laser cleaning machine can be used for metal rust removal, oil cleaning, local quenching, surface roughening, coating removal, weld cleaning

Development And Principle Of Handheld Laser Cleaner 

The traditional industrial cleaning methods mainly include high-pressure water, chemical reagent, ultrasonic and mechanical grinding, but these cleaning methods have the problems of damaging the substrate, poor working environment, pollution, incomplete cleaning at some positions and high cleaning cost. With the aggravation of environmental pollution, scholars all over the world are actively developing new cleaning technologies with energy conservation, environmental protection and high efficiency. Because laser cleaning technology has many advantages, such as low damage of matrix materials, high cleaning accuracy, zero emission and no pollution, it is gradually valued and favored by academia and industry. There is no doubt that the application of laser cleaning technology to the dirt cleaning of metal surface has a very broad prospect.

The Technology Of Handheld Laser Cleaner:

Handheld laser cleaner is based on laser ablation—the process of removing material mainly from a solid surface by irradiating it with a laser beam. Every material is composed of different molecular bonds that determine a specific ablation threshold—that is, the energy required to overcome the binding energy of the contaminant layer and decompose it. To remove the contaminant layer, the energy from the laser must be above the ablation threshold of the particular material; in general terms, as the ablation threshold increases, so does the energy required to remove the contaminant. For efficient laser cleaning, the ablation threshold of the material to be cleaned should be consistently higher than that of the material to be removed.

The types of lasers used for ablation vary according to the contaminant, the composition of the underlying material, the treatment required, and the surface area that needs to be cleaned. For example, near-infrared pulsed lasers of a few tens of watts (or more) are used often because they are more efficient in reaching the ablation threshold than continuous-wave lasers. At the same time, especially short pulses have the further advantage of not heating up the surface to be cleaned.

Environmental and safety issues always accompany laser ablation, as lasers vaporize materials into fumes. In the case of an oxidized metal surface, for example, the oxide particles detach from the surface and create a highly compressed plasma (ionized gas out of equilibrium), which expands and creates a shock wave that then fragments and ejects the layer of pollutant into the atmosphere. For this reason, a fume extraction system is always needed near a laser cleaning system.

Despite these issues, numerous  companies are developing laser cleaning technologies. More and more users are willing to commit to an initial investment to profit from the advantages of this technology for surface cleaning.

Application Area:

This kind of handheld laser rust removal machine is widely applied in mold industry, automobile

manufacturing, shipbuilding industry, food processing, sewage treatment, rubber tires, petrochemical

and other industries.

Application Scope:

This laser cleaning rust machine can quickly remove paint and remove metal or glass

surface coating, rust, and a variety of oxides, grease, resin, glue, dust, stains, production residues,

rough metal surface. laser The cleaning rust machine can also remove the greasy dirt, Post-weld

oxide and dispose of the residue before welding. Mould cleaning,such as tire mould, electronic mould,

food mould. Greasy dirt of the precision parts can be removed after production and processing. All in all,

this laser removal machine can quick cleaning of nuclear component maintenance.