Coating is an important means of protecting metal materials in the industry, and can play a role in protection, decoration, marking and other special effects on objects. Due to the erosion of air, moisture and temperature for a long time, the paint is easy to fall off, which affects the appearance and prevents the metal from corroding.
Laser cleaning
Laser paint removal is a process in which the paint part to be cleaned is irradiated by a laser beam, and the paint layer on the surface is instantly evaporated or expanded and peeled off, so as to achieve a clean process.
Application of Laser Paint Removal
As a technical means, laser paint removal has a wide range of applications, covering aerospace, automobile manufacturing, rail transit, shipbuilding, steel manufacturing, and electronics industries.
Application in automobile wheel manufacturing
With the rapid development of the automobile industry, as a key part of the automobile, the manufacturing process of the wheel hub has attracted more and more attention. In order to make the car wheel more beautiful, the surface treatment of the wheel production stage has become an important part of the wheel processing technology. The surface treatment can generally adopt various methods such as chrome plating, polishing, painting and powder spraying. Among them, the hubs processed by the hub spraying process will produce 10%-15% of unqualified products (such as orange peel, multiple spraying, etc.) due to the limitation of the process, which needs to be removed and repainted.
The traditional common paint stripping methods mainly include: spray method, mechanical grinding, chemical immersion and ultrasonic paint stripping, etc., but these methods all have various drawbacks, such as: the paint stripping is not clean, and there is residue in the dead corner of the wheel hub; the time is relatively short. It is long and needs to meet the technological requirements of soaking time; the placement or hanging position is not accurate, ordinary paint stripping has higher requirements on the placement or hanging position of the hub, and manual operation may cause deviation in position placement or suspension; work efficiency In the process of paint stripping, manual loading and unloading operations are often used, which is labor-intensive.
These series of drawbacks seriously hinder the automatic production of automobile wheels, and cannot meet the high requirements of modern automobile production technology and the growing market demand. The laser paint removal process can not only improve the paint removal accuracy, but also improve the paint removal efficiency.
Advantages of laser cleaning:
1. Non-contact
It is convenient to clean the parts such as special-shaped parts, holes, grooves, etc. that are difficult to reach by traditional cleaning methods.
2. Fine processing
Non-contact processing, no damage to the substrate, can selectively clean the paint on a certain part of the substrate, with higher removal accuracy and cleanliness
3. Environmentally friendly and pollution-free
There is no need to use any chemicals and cleaning liquids, and it is environmentally friendly and pollution-free; the solid powder layer produced by paint removal can be recycled and processed by the dust collection system.
4. Time-saving and efficient
Laser cleaning has high efficiency and saves time;
5. The laser cleaning equipment is portable and manual operation is flexible;
6. Safe to use
Optical fiber transmission, convenient to cooperate with robots and motion mechanisms, realize long-distance operation (some dangerous places), and ensure the safety of personnel;
7. Clean without damage
It can remove the surface coating of various substrates and achieve high cleanliness. Short-term impact will not heat the surface of the substrate and will not damage the substrate.
8. Low cost
The laser cleaning system can be used stably for a long time, with low operating cost, and only needs electricity
Handheld Laser Cleaning
Manual hand-held laser cleaning can clean the workpieces that are not easy to move, selectively clean the workpieces, and some dead corners can also be flexibly cleaned in place. When cleaning uneven workpieces, the hand-held laser cleaning head can also adjust the focus up and down for cleaning, resulting in a uniform cleaning effect.
Application advantages
1. A variety of pulse waveform options to meet the cleaning of different materials;
2. Large single pulse energy, high cleaning efficiency;
3. The spot energy is evenly distributed, and the cleaning does not damage the substrate;
4. Chassis structure for easy integration;
5. The output cable is long and the processing format is large.
Relevant data shows that the potential demand of the domestic laser cleaning market alone exceeds 60 billion yuan, and the global demand is more than 100 billion yuan. The demand of the huge market has also led to higher industry requirements for the laser cleaning industry. The laser cleaning industry has broad prospects. Legent Laser closely follows the development of the industry to produce and supply high-quality laser cleaning machines and customize and improve laser application solutions for customers.
