Fully Automatic Laser Cleaning Train Wheel Set Equipment

Fully Automatic Laser Cleaning Train Wheel Set Equipment

This equipment is mainly used for laser cleaning of wheelsets in rail transit. Compared with traditional cleaning methods, laser cleaning has the advantages of good cleaning effect, high cleaning efficiency, non-contact, no damage to the substrate, green environmental protection, cost reduction and efficiency improvement, etc. Advantage. For the cleaning of train wheelsets in the rail transit industry, our company can create professional laser cleaning equipment and customized solutions for customers, effectively solving the problem of paint and rust removal of wheel pairs before flaw detection, ensuring the safety and stability of trains on their thousands-mile journey, and providing Railway transportation safety is guaranteed.

Product Features:

• The cleaning method is high-quality laser cleaning, with no consumables and low operating costs;
• It has a built-in intelligent tracking function that can automatically adjust the height of the cleaning head according to the size of the workpiece. It is easy to operate and has good adaptability;
• Laser cleaning is highly efficient, and one cleaning takes less than 10-15 minutes, which is more than three times that of traditional methods;
• The pulse laser used in the laser cleaning machine has a long service life, usually up to 10,000 hours, with stable quality and good reliability;
• The beam emitted by the laser is absorbed by the surface of the object to form extremely expanding plasma, which generates shock waves. The shock waves turn contaminants into fragments and are removed. The entire cleaning process does not damage the substrate.

Technical Specifications:

The advantage of laser composite cleaning technology is not only the superposition of two lasers, but also the energy utilization rate is much greater than the simple addition of two heat sources. In laser cleaning of thick coating materials, due to the large multi-pulse energy output of a single laser and the high cost of high-power pulse lasers, laser cleaning of thick coating materials is limited. However, the use of pulse laser-semiconductor laser composite cleaning can be fast and effective. It improves the cleaning quality and the base material is not easily damaged. In laser cleaning of highly reflective materials such as aluminum alloys, a single laser has problems such as high reflectivity. However, when pulse laser-semiconductor laser composite cleaning is used, the energy absorption rate of the oxide layer on the metal surface is increased due to the thermal conductivity transmission of the semiconductor laser. , so that the pulsed laser beam can peel off the oxide layer faster, thereby more effectively improving the removal efficiency.

Application Case：
The wheel set is the part of the rolling stock that is in contact with the rails. It consists of two left and right wheels firmly mounted on the same axle. The function of the wheelset is to ensure the operation and steering of the rolling stock on the rails, bear all static and dynamic loads from the rolling stock, transfer them to the rails, and transfer the load caused by uneven lines to the various components of the rolling stock.

For high-speed trains, the wheels and axles are made of carbon steel without added alloying elements, which often causes cracks and brittle fractures. Therefore, high-speed trains need to be inspected after running for a period of time. Before maintenance, the coating on the wheel axle and spokes needs to be completely stripped off. The coating is an epoxy resin coating material with a thickness of 150-250 μm.

The traditional method is to use a wire brush for polishing. Although this method can peel off the coating, the efficiency is very low, and the labor intensity of the operator is very high. It will also cause damage to the surface of the wheel set, which will affect the next step of flaw detection. Laser cleaning technology can effectively remove the paint layer on the wheel set's surface, but the efficiency is low. In the case of thick coatings, the cleaning speed is slow and has great limitations. However, composite laser cleaning technology can control the cleaning time of each wheel set within 10 minutes. The cleaning efficiency reaches Sa3 level (the highest cleaning standard) without damaging the substrate.

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