The laser cleaning machine has been gradually replacing traditional cleaning methods in many fields due to its advantages and irreplaceability. It can not only removes organic pollutants, but also inorganic pollutants, including metal rust, metal particles, dust, etc. Tire mold cleaning is one of its major applications whose technology has been well established and has been verified through practice in the relevant industry.

The mold is a very important mechanical part in automobile tire production. Its quality directly affects that of tires. Residues in the groove of the surface of the tire mold are generated by the use of rubber, matching agents, and release agents under the high temperature and high humidity environment and under repeated use. The shape and structure of the mold are impacted after the accumulation of these residues to a certain extent, which eventually leads to the decline of tire quality. Therefore, it is very important to keep the tire mold clean.

The laser cleaning machine for tire mold mainly adopts laser high energy, high brightness, and good directionality of a laser beam to destroy the force between pollutants and the object surface to remove pollutants on the tire surface without damage to the substrate.

Laser cleaning for tire mold is the process of selectively evaporating pollutants on the surface of materials. The absorption rate of different materials is diverse for laser energy with a specific wavelength. If the absorption rate of pollutants adhered on the surface of materials is higher than that of the substrate materials, these pollutants can be evaporated and removed without damage to the substrate materials by laser irradiation to make their temperature rise above the melting point.

Speed and stability are required for tire cleaning during tire production to save downtime. Traditional methods, including sandblasting, ultrasonic or carbon dioxide cleaning, take several hours to cool highly-heated molds before being moved to cleaning equipment for cleaning, resulting in time-consuming, easiness to damage the mold accuracy, and safety and environmental issues caused by chemical solvents and noise.

By comparison, the laser cleaning machine is relatively convenient and time-saving because of the use of the fiber laser to clean small and hard-cleaning corners of molds. In addition, the generation of toxic gases can be avoided and environmental safety guaranteed because rubber is not gasified.

In the tire industry in Europe and the United States, the laser cleaning machine for tire mold has become popular. Compared with conventional cleaning methods economic benefits are obvious: save standby time, avoid mold damage, improve operational safety, and save raw materials.

Here are some advantages of laser cleaning machines for tire molds:

● Automatic assembly line: The laser cleaning machine can be integrated with CNC machine tools or robots to clean tire molds in remote control, which can automate equipment, process products in the assembly line, and reach intelligent operations.

● No damage: The short-time impact generated by the laser cleaning machine during the cleaning process does not heat up the surface of the tire mold, thus no damage to the tire.

● Good stability: The laser cleaning machine adopts the pulse laser whose service life is very long that stability is guaranteed.

● No environmental pollution: No chemical cleaning chemicals are applied for cleaning tire molds by the laser cleaning machine, thus no cleaning waste liquid produced to avoid causing environmental pollution. 

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