With the rapid development of laser cleaning technology, because of its advantages of low damage, high cleaning accuracy, zero emissions and pollution-free, laser cleaning machine has gradually entered people's lives with its unique advantages. There is no doubt that the application of laser cleaning technology to the cleaning of dirt on metal surfaces has a very broad prospect. However, the prices of laser cleaning machines on the market vary from tens of thousands to hundreds of thousands. How to choose the laser cleaning machine that suits you is very necessary.

1. What is laser cleaning machine

The laser cleaning machine focuses on cleaning the equipment that needs cleaning and protection. The laser cleaning technology is a "green" cleaning process, which does not need to use any chemical agents and cleaning fluids. The waste materials cleaned are basically solid powder, small in size, easy to store, and recyclable, which can easily solve the environmental pollution problem caused by chemical cleaning.

According to the analysis of a large number of experimental results, the laser cleaning machine is different according to the difference in the thermophysical parameters of the surface attachment and the substrate:

When the thermophysical parameters of surface attachments differ greatly from those of the base material, the laser cleaning machine includes ablation vaporization, thermal vibration and thermal shock machine and acoustic vibration crusher, such as laser cleaning paint layer and rubber layer.

When there is little difference between the thermophysical parameters of the surface attachment and the base material, it is mainly the ablation vaporizer, such as laser rust removal.

2. Application of laser cleaning machine

At present, laser cleaning technology has been applied to military industry, mold cleaning, surface treatment, microelectronics, cultural relic protection, medical treatment, automobile processing and other fields.

2.1 Military application

In the field of aerospace, American scientists proposed to use laser to remove paint from military aircraft, and made relevant research. Now, it has been successfully applied to the entire F16 fighter. The laser paint removal process requires no consumables, and the running cost of the equipment is low. It provides safety and quality assurance for aircraft maintenance. With multiple laser cleaning systems, the paint layer on the surface of an A320 Airbus can be completely removed within two days without damaging the metal surface.

In the maintenance and manufacturing of military equipment, laser cleaning can improve the efficiency of equipment maintenance, reduce the oxidation of the surface of weapons and ammunition, and provide a strong guarantee for military equipment and military combat effectiveness.

2.2 Industrial application

The tire mold is polluted by the comprehensive deposition of rubber, compounding agent and release agent in the use process, which will inevitably lead to carbon deposition, viscose, difficult demoulding and other problems, causing the pattern pollution dead zone and affecting the life of the mold and tire quality.

Laser cleaning technology can not only improve the cleaning method of tire mold and remove the residual impurities on its surface, but also improve the performance of tire surface and indirectly improve tire production quality.

According to the cleaning test of laser cleaning equipment on the production line of tire company, it only takes 2 hours to clean a set of large truck tire mold online; Compared with conventional cleaning methods, the economic benefits are obvious.

The application of laser cleaning technology in industry has greatly improved the carbon removal effect and welding process quality. It can efficiently clean the carbon deposition on different substrate surfaces, reduce welding defects and improve the weldability of materials; At the same time, it can save the production cost of enterprises and improve the production efficiency of enterprises.

2.3 Other applications

The electronics industry uses lasers to remove oxides. Before welding the circuit board, the component pins must be thoroughly de oxidized to ensure the best electrical contact, and the pins cannot be damaged while decontaminating. Laser cleaning can meet the requirements of use and has high efficiency. One pin only needs to be irradiated with laser once.

Laser cleaning of cultural relics, handicrafts and buildings has been widely used. In Europe, people have cleaned various buildings, such as the martyr's tomb in Poland, the West Executive Palace in London, etc. However, not all cultural relics can be cleaned by laser, such as colorful handicrafts. Because different colors have different absorption spectra for laser, the absorption energy is different, so the part with high energy absorption will be damaged.

3. Price of laser cleaning machine

It is difficult to have a fixed price for laser cleaning machines, because laser cleaning machines are generally customized. Generally speaking, the price of a laser cleaning machine is related to its power. The higher the laser power is, the more expensive the price is. However, the purchase of laser cleaning machines should be based on their specific needs, such as simple cleaning of floating rust, which can be met by low-power laser cleaning machines, while high-power laser cleaning machines may cause damage to workpieces.

In order to achieve the best cleaning effect on the corresponding substrate to be cleaned, it is usually necessary to adjust the corresponding optical fiber length, field mirror focal depth, output power, pulse width, scanning speed and other parameters according to the characteristics of different substrates.

The composite laser cleaning machine of more than 8000W, which is used to remove paint from large equipment such as aerospace and high-speed rail, is generally redesigned and manufactured according to the customer's equipment site, use environment and other conditions, and the price is often determined after field measurement.

4. Scope of laser cleaning machine

Laser cleaning machines are divided into hand-held laser cleaning machines and large desktop laser cleaning machines. Different laser cleaning machines are good at different functions and places. For example, some hand-held laser cleaning machines are only suitable for semiconductor equipment, because the semiconductor environment needs greater environmental protection, and chemical pollutants cannot appear. However, some large ships are different. Different environments will lead to various differences in the scope of application. Only by selecting the targeted and suitable cleaning equipment can we achieve the desired effect.

5. Manufacturer of laser cleaning machine

The manufacturer qualification of laser cleaning machine will be related to a series of service problems. As a cleaning machine, laser cleaning equipment has certain process requirements. The price will vary greatly with different processes, and so will industrial equipment. Before selecting cleaning equipment, it is recommended to consider the manufacturer qualification of laser cleaning equipment. It is appropriate to re identify their capabilities through the follow-up of existing cooperative customers. The following manufacturers of laser cleaning equipment are for reference only:

5.1 German CleanLASER

German CleanLASER is a company that produces optical fiber coupled, portable, movable or workstation type laser cleaning equipment, providing backpack type low-power cleaning machines as low as 20W, as high as 1000W and workstation or customized cleaning systems. Germany CleanLASER has launched a variety of models of products, ranging from low power to high power, which can clean paint, rust, dust, oil stains, fingerprints, etc. In recent years, CleanLASER has devoted itself to the research of laser cleaning equipment that can clean dirt at high temperature on the plastic injection mold and rubber vulcanization mold line.

5.2 LaVa-X

LaVa-X is a company that develops and produces vacuum laser welding equipment, and is currently working with CleanLASER to weld aluminum hairpin windings. Clean surfaces without contamination are essential for high quality aluminum welding processes. Any grease, oil or organic material on the aluminum surface will evaporate under the action of laser, which is easy to form a large number of pores and splashes during welding, and even cause the molten pool to spray out.

5.3 4JET

4JET is also a manufacturer of laser processing equipment. Its products are used for laser cleaning, plate making, marking, cutting and material finishing to achieve high-quality surfaces. Some industrial level laser cleaning systems require higher flexibility or portable systems. Therefore, 4JET Company has developed a flexible JETLASER series handheld laser cleaning system. These hand-held laser cleaning systems can work only by pressing the power key, and are mainly used in rubber production, injection molding, composite material manufacturing and mold cleaning in the food industry.

5.4 HGLASER

HGLASER is the pioneer and leader of laser industrial application in China, and the authoritative provider of global laser processing solutions. We comprehensively layout the construction of laser intelligent equipment, measurement and automation production lines, and smart factories to provide an overall solution for intelligent manufacturing. It provides various industries with full power laser cutting systems, laser welding systems, laser marking systems, laser texturing complete sets of equipment, laser heat treatment systems, laser drilling machines, lasers and various supporting devices, laser processing special equipment and plasma cutting equipment, as well as the overall plan for the construction of automatic production lines and smart factories.

6. After sales of laser cleaning machine

We must pay more attention to the after-sales service of this kind of industrial equipment. After all, its technical and technological requirements are high, which cannot be handled well by ordinary after-sales service. It is also important to choose good enterprises, such as Huagong Laser. For the first time, people may encounter a variety of problems, such as whether the operation problem occurs during the use, or the problem of not understanding the debugging in the setting. If you can quickly find after-sales personnel to solve the problem, find technicians to visit, it will greatly facilitate the work.