Traditional cleaning industry has a variety of cleaning methods, mostly using chemical and mechanical methods. With the increasing awareness of environmental protection and safety, the types of chemicals that can be used in industrial production cleaning will be less. How to find a cleaner and non-destructive cleaning method is a problem we have to consider. Industrial laser cleaning machine has the characteristics of no grinding, non-contact, no thermal effect and suitable for cleaning objects of various materials. It is considered to be the most reliable and effective solution. At the same time, laser cleaning machine can solve the problem that traditional cleaning methods can not solve.
Laser cleaning is a process that uses high-energy laser beam to irradiate the material surface, so that the attachments such as surface dirt, particles, rust spots or coatings evaporate or peel off instantly, and effectively remove the attachments or surface coatings on the surface of the cleaning object with high speed, so as to achieve cleaning and purification.
Laser cleaning is also an effective and efficient method to remove rust and oxide layer from metal surface. Rust and oxide layer are pollutants formed on metal surface due to natural or artificial processes. When metals are exposed to moisture, they react with water to form ferrous oxide and rust. This rust reduces the quality of the metal and makes it unsuitable for a variety of applications.On the other hand, due to the heat treatment process, the metal surface will form an oxide layer, which will make the metal surface discolor, thus hindering the subsequent finishing operation.
To remove these unwanted surface deposits, descaling is required to provide a smooth surface for per-finishing and finishing (e.g., electroplating).
Traditional rust and scale removal methods include physical methods, such as sand blasting, polishing, scraping device, additional purging and wire brush. There are also chemical methods, such as the use of alkaline or acidic chemicals to remove the oxide layer. However, these methods will not only cause environmental pollution, but also damage the base metal.
In order to avoid these shortcomings, laser cleaning has become the preferred method for rust and scale removal. The rust layer / oxide layer is removed by irradiating a laser beam with high peak power and high repetition rate on the rusty layer.
Laser cleaning process can also be used for surface cleaning. Before applying anti-corrosion protective coating to steel parts, the surface of the parts must be cleaned so that there are no pollutants on the surface. These pollutants include oil, grease, oxide layer, hydrate, workshop primer, etc.
The main advantages of using laser cleaning machine:
1 automated cleaning methods
2 reduce the amount of waste
3 improve security
4 no chemicals or sandblasting required
5 Non wear and non-contact cleaning process
Since fiber laser cleaning use a non friction, non-contact method and does not involve solvents, chemicals or grinding media, it is very suitable for surface cleaning preparation and derusting / descaling. The cleaning process can be small-scale or large-scale, and the cleaning process can be automated. Laser cleaning is a kind of environmental protection, economic and effective rust removal method, which can prepare for coating protective coating on the surface of parts.
Applications of laser polishing, surface cleaning and coating removal are expanding rapidly. Depending on the application, the pulse frequency, energy and wavelength of the laser cleaning machine must be precisely selected to clean, polish and ablate the target material. At the same time, any form of damage to the base material must be prevented.
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