Views: 20 Author: DURMAPRESS Publish Time: 2021-07-06 Origin: DURMAPRESS Inquire
Rust is the inevitable existence of some metal products, in order to make the product beautiful and continue to use, it is necessary to remove rust. CL-1000 laser cleaning machine is born for this purpose, laser cleaning machine rust removal effect is significant, can effectively remove rust, what are its advantages?
Laser cleaning machine
1, CL-500 laser cleaning machine rust removal is non-contact, can be transmitted through optical fiber, combined with robot or manipulator, convenient remote operation, can clean the parts that are not easy to reach by traditional methods, is an excellent choice for ship, aircraft, weapons and other cleaning and maintenance.
2. In addition to rust removal, laser cleaning machine can also clean different types of pollutants on the surface of various materials to achieve a high degree of cleanliness. It is a new application of surface engineering treatment. Pulsed laser is more suitable for titanium alloy surface cleaning and descaling, stainless steel weld pass cleaning, stainless steel weld spot cleaning, precision parts before and after welding surface cleaning, flange cleaning; Ultraviolet lasers are suitable for cleaning large components.
3, laser cleaning machine through the threshold calculation parameter setting, no contact, no grinding, no thermal effect, no damage to the base material body, easy to operate, especially suitable for mold, cultural relics cleaning.
4, laser cleaning machine rust removal does not need chemical solution, no chemical cleaning caused by environmental pollution, is the replacement of pickling phosphating new technology, new process, new method.
5, laser cleaning machine after rust cleaning waste form solid powder, small volume, easy to deal with, do not cause pollution to the environment, green environmental protection, is the trend of industrial cleaning reform and development.
6, pickling, sandblasting and other traditional cleaning process because of its inevitable formation of visible damage to the surface of the substrate, is not suitable for the cleaning treatment of 30mm below the sheet material, and the laser cleaning machine is to show their skills.
7, laser cleaning machine has a strong flexibility and controllability, through different parameter Settings, the same laser cleaning machine can make the surface rough to improve the adhesion; You can set different laser power, frequency, aperture, focal length and so on by preset effect, do not exceed the limit as little as possible, only clean the required range and intensity, improve efficiency and reduce costs.
8, laser cleaning function can effectively clean micron-level pollution particles, to achieve controllable fine cleaning, suitable for precision instruments, precision parts of the clean treatment.
9, laser cleaning machine rust removal can be used for a long time, does not need consumable materials, only a small amount of electricity, low maintenance and operation costs, can easily achieve automatic operation, a unlimited cycle of use.
10, laser cleaning machine belongs to the physical dry cleaning, replace the traditional industrial cleaning on the waste of water resources, replace the traditional surface treatment needed cleaning fluid, cleaning agent, eliminate ODS ozone depleting substances, low carbon water saving and energy saving.
In the environmental protection laws and regulations requirements are more and more strict, people's awareness of environmental protection and safety is increasing today, laser cleaning machine rust removal can reduce the use of chemical agents and mechanical methods of cleaning, its efficient, environmental protection, cleaning clean characteristics, will be more and more widely used.
The principle and method of laser cleaning, laser is characterized by high directivity, absolute, high coherence and high brightness. By focusing the lens and Q-switching, the energy can be concentrated into a very 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, focusing the laser beam near the focus can produce machine thousands of degrees even to ten thousand degrees of high temperature, so that the dirt instantaneous evaporation, gasification or decomposition.
2. The divergence Angle of the laser beam is small and the direction is good. Through the concentrating system, the laser beam can be focused into spots of different diameters. Under the condition of the same laser energy, the energy density of the laser beam can be adjusted by controlling the spots of different diameters of the laser beam, so that the dirt is heated and expanded. When the expansion force of the dirt is greater than the adsorption force of the dirt on the substrate, the dirt will break away from the surface of the object.
3, the laser beam can generate ultrasonic waves on the solid surface, produce mechanical resonance, so that the dirt is broken off. Laser cleaning technology is to use the characteristics of the laser to achieve the purpose of cleaning.
According to the optical properties of the substrate to be cleaned and the dirt to be cleaned, the laser cleaning mechanism can be divided into two categories :- Type is the use of cleaning substrate (also known as the mother) and surface attachment (dirt) to a certain wavelength of laser energy absorption coefficient has a great difference. Most of the laser energy radiated to the surface is absorbed by the surface attachment, which is heated or vaporized, or instantaneous expansion, and is driven by the formed airflow, away from the surface of the object, to achieve the purpose of cleaning. The substrate will not be damaged because it absorbs very little energy from the laser at this wavelength. The key to achieve safe and efficient cleaning is to select the appropriate wavelength and control the laser energy for laser cleaning. Another cleaning method is that the laser energy absorption coefficient of the clean substrate and the surface attachment has little difference, or the substrate is more sensitive to the acid vapor formed by the coating when heated, or the coating will produce toxic substances after heated. This type of method is usually used to shock the surface being cleaned with a pulsed laser with work repetition rate, converting part of the beam into sound waves. After the sound wave hits the hard surface below, the returning part interferes with the incident sound wave generated by the laser, producing high-energy waves, which cause the layer to explode in a small range. The layer is compressed into powder and then cleared by the vacuum pump, while the underlying substrate will not be damaged.
From the analysis of the method, there are four kinds of laser cleaning methods:
1, laser dry cleaning method, that is, the use of pulse laser direct radiation decontamination;
2, laser + liquid film method, that is, first deposit - layer of liquid film on the surface of the substrate, and then use laser radiation decontamination; When the laser is irradiated on the liquid film, the liquid film is heated sharply and produces explosive vaporization. The explosive shock wave loosens the dirt on the surface of the substrate. And fly away from the surface of the processed object with the shock wave to achieve the purpose of decontamination.
3, laser + inert gas method, that is, in the laser radiation at the same time, with inert gas blown to the surface of the substrate, when the dirt from the surface will be immediately blown off the surface by the gas, to avoid surface pollution and oxidation again; 4, the use of laser to loosen the dirt.