Introduction to the development of laser cleaning technology

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Traditional surface treatment uses mechanical, hydrocarbon, pickling and other processes to clean, deburr, degrease, and deoxidize the surface of the workpiece. Chemical solutions are used in the treatment process, which produces a large amount of waste water and waste gas, which seriously pollutes the environment.

With the rapid economic development, the demand for cleaning in industries such as molds, microelectronics, mechanical parts, urban construction, and large-scale equipment is also increasing day by day. Traditional cleaning processes (such as sandblasting, polishing, chemical agents, etc.) have high pollution and low efficiency, which are insufficient to meet the needs of market development and environmental protection. The development of more efficient, more environmentally friendly, stress-free, and damage-free laser cleaning technology is imminent. , Breaking through the bottleneck of the core technology of laser cleaning has become a top priority.

Introduction to laser cleaning

Laser cleaning is a new type of environmentally friendly cleaning method. Today, when environmental protection regulations are becoming stricter and people’s awareness of environmental protection and safety is increasing, the types of chemicals that can be used in industrial cleaning will become less and less. Cleaning methods are gradually replacing traditional industrial cleaning.

The principle of laser cleaning is to irradiate the surface of the workpiece with high-frequency and high-energy laser pulses. The coating layer can instantly absorb the focused laser energy, so that the oil stains, rust spots or coating on the surface can be evaporated or peeled off instantly, which can effectively remove surface attachments or surfaces at a high speed. The cleaning method of the coating, and the laser pulse with a short action time, will not damage the metal substrate under the appropriate parameters.

The shortcomings of traditional cleaning methods have prompted the application of laser technology in the field of surface cleaning. Due to the many advantages of laser cleaning, it has now become the most effective way to remove unwanted substances on the surface of materials.

About the various advantages of laser cleaning

1. Diversified operation methods

Laser cleaning can be divided into handheld and automatic cleaning. Hand-held cleaning is carried by the operator with a mobile laser cleaning equipment and holding the laser head for cleaning. Automatic cleaning integrates the laser cleaning system with manipulators, crawling robots, AGVs and other equipment to achieve precise and efficient cleaning.

2. It can clean many types of pollutants

Regardless of whether the substance to be removed is organic, metal, oxide or inorganic non-metal, laser cleaning can remove it. This is an advantage that any other traditional method does not have, so that it can be widely used in the removal of surface dirt, paint, rust, film and other fields.

3. Low operating costs

Laser cleaning does not use consumables, and the operating cost has advantages compared with traditional methods.

Introduction to the principle of laser cleaning

The laser is characterized by high directivity, monochromaticity, high coherence and high brightness. Through the lens, the energy can be concentrated into a small space and time range. In the laser cleaning process, the following characteristics of the laser are mainly used:

1. The laser can achieve a high concentration of energy in time and space. The focused laser beam can generate thousands of degrees or even tens of thousands of degrees in the vicinity of the focus, so that the dirt can instantly evaporate, gasify or decompose.

2. The divergence angle of the laser beam is small and the directivity is good. The laser beam can be condensed into spots of different diameters through the focusing system. Under the same conditions of laser energy, control laser beam spots with different diameters.

3. The energy density of the laser can be adjusted to make the dirt expand by heat. When the expansion force of the dirt is greater than the adsorption force of the dirt to the substrate, the dirt will be separated from the surface of the object.

We provide laser cleaning products. If you are interested in laser cleaning, please take the initiative to contact us and initiate a consultation with us for more relevant information.

Advantages of laser cleaning over traditional cleaning

Compared with traditional cleaning methods such as mechanical friction cleaning, chemical corrosion cleaning, liquid and solid strong impact cleaning, and high-frequency ultrasonic cleaning, laser cleaning has obvious advantages.

It is efficient, fast, and low-cost, and has low thermal and mechanical load on the substrate. The cleaning is non-damaging; the waste is recyclable, without environmental pollution; it is safe and reliable, and does not harm the health of the operator; it can remove a variety of different thicknesses and differences. The coating of the components; the cleaning process is easy to realize automatic control, and realize remote remote control cleaning and so on.

We provide laser cleaning products. If you are interested in laser cleaning, please take the initiative to contact us and initiate a consultation with us for more relevant information.

What is laser cleaning technology?

In recent years, as people's awareness of environmental protection has increased, it has brought huge challenges to the development of the cleaning industry worldwide. Various cleaning technologies that are conducive to environmental protection have emerged, and laser cleaning technology is one of them.

The so-called laser cleaning technology refers to the use of high-energy laser beams to irradiate the surface of the workpiece to cause the dirt, rust or coating on the surface to evaporate or peel instantly, and effectively remove the adhesion or surface coating on the surface of the cleaning object at a high speed, so as to achieve a clean process. .

It is a new technology based on the interaction effect of laser and material. It is different from traditional mechanical cleaning, chemical cleaning and ultrasonic cleaning. It does not require any CFC organic solvents that destroy the ozone layer. It is pollution-free and noise-free. It is harmless to the human body and the environment and is a "green" cleaning technology.