When you are thinking about this problem, you must be interested in laser cleaning technology, and want to know the difference between laser cleaning technology and other cleaning technologies, and what benefits can be brought to you by using laser cleaning technology.
Comparison of laser cleaning technology and traditional cleaning method
Traditional cleaning methods generally include sandblasting, mechanical polishing, dry ice cleaning, and chemical cleaning. Each method has its own shortcomings, which can be made up for by laser cleaning.
Sandblasting
Sandblasting cleaning uses high-speed spraying of materials (copper sand, quartz sand, emery, iron sand, sea sand) to the surface of the metal workpiece, which will cause damage to the surface of the object, which is not conducive to long-term use of cleaning objects, and sandblasting will cause air pollution. And produce noise, will produce inhalable particles and cause harm to the human body.
Dry ice cleaning
The cost of dry ice is too high, it is not easy to store, it is dangerous, and it can reduce costs. The only way to reduce costs is to buy dry ice locally, because buying dry ice in other places will consume dry ice during transportation and increase the cost.
Chemical cleaning
The metal material on the surface of the corroded mold needs to be soaked for a period of time to increase the corrosion mold, which is not conducive to long-term use of the cleaning mold, and will produce industrial waste water, which is harmful to human health.
Ultrasonic cleaning
Although the high-frequency ultrasonic cleaning method has a good cleaning effect, it is powerless to clean the sub-micron dirt particles with strong adhesion. The size of the cleaning tank limits the size range of the workpiece to be cleaned, and drying after cleaning is also a big problem.
Laser cleaning
Unlike other cleaning methods that require the aid of media (such as sandblasting or dry ice blasting), laser cleaning is safer for operators and employees. For customers who have cleaning needs, it can solve the problems of many other cleaning methods. It is ideal replacement of. First, it produces no additional waste and is environmentally friendly. Second, it's non-damaging and non-conductive, which means it's also safe for the material you're cleaning. Third, laser cleaning is non-contact cleaning, which does not require direct contact cleaning by humans, and can also be combined with tooling robots as fully automated cleaning equipment. Fourth, laser cleaning can be selectively cleaned, that is, it is selective for the objects to be cleaned. For different contaminants on different substrate surfaces, the contaminants can be selectively cleaned by setting laser parameters (such as spot size, single pulse energy, pulse width, repetition frequency, etc.) without damaging the substrate.
Legent Laser currently supplies two types of laser cleaning equipment using pulsed and CW lasers.
There are fundamental differences between the two in application scenarios. High precision, the need to strictly control the heating of the substrate, and the application scenarios that require the substrate to be non-destructive, such as molds, precision instruments, cultural relics protection, etc., should choose a pulse laser cleaning machine. For some large steel structures, pipes, rails, etc., due to the large volume and fast heat dissipation, the requirements for substrate damage are not high, and CW laser cleaning machines can be selected.
Under the condition of the same power, the cleaning efficiency of pulsed laser is much higher than that of continuous laser, but the price of continuous laser cleaning machine has an advantage. The efficiency gap with pulsed lasers can be bridged by using high-power lasers, but high-power CW light has greater heat input and increased damage to the substrate.
