car lamp protection film coating equipment easpecially designed for car lamps

The equipment can precisely control the thickness of the film layer (usually 1 to 5μm) and density. The prepared oxide film layers such as SiO₂ and TiO₂ have a light transmittance of ≥92%, which not only does not affect the lighting effect of car lamps but also forms a surface protective barrier to prevent the substrate from aging and yellowing due to ultraviolet radiation.

Integrated plasma pretreatment module. Before coating, argon plasma is used to bombard the surface of the vehicle lamp to remove oil stains and weak boundary layers, and activate the substrate surface. Some devices support gradient film layer deposition (such as a bottom thickening layer + a surface wear-resistant layer), which enables the film layer adhesion to reach the 0-level standard of the 100-grid test, meeting the usage environment of outdoor bumpy roads and alternating high and low temperatures for automobiles.

By adjusting the composition of the target material (such as doping nano-ceramic particles) and process parameters (vacuum degree, deposition power), the hardness of the prepared protective film can reach 4 to 6H (pencil hardness), which can resist the impact of sand and gravel and scratches from wiping, solving the pain point of traditional car lamps being easily scratched.

Equipped with a self-rotating and revolution fixture system, the fixture design conforms to the curved surface structure of the vehicle lamp to ensure uniform coating on the inner and outer surfaces of the lampshade, with a thickness deviation of no more than ±0.5μm. Support integration with automotive lighting production lines to achieve automatic loading and unloading as well as continuous coating, meeting the demands of large-scale industrial production.

It adopts a PLC + touch screen control system, which can preset and store the coating formulas for different vehicle models' headlights (such as the differentiated parameters of car headlights and truck taillights), monitor key indicators such as vacuum degree, gas flow rate and deposition temperature in real time, and automatically alarm in case of abnormality to ensure the stability of the coating quality.

In view of the characteristics of PC and PMMA plastics commonly used in car lamps, which are not heat-resistant and prone to deformation, a low-temperature coating process (temperature ≤80℃) is adopted to prevent the base material from softening and deforming during the coating process, and at the same time solve the cracking problem caused by the mismatch of thermal expansion coefficients between the plastic and the inorganic film layer.

Compared with traditional spray protective paint, the film layer prepared by vacuum coating is thinner and more uniform, and will not have defects such as sagging and orange peel. Moreover, the film layer has excellent weather resistance. After 1000 hours of xenon lamp aging test, the light transmittance decreases by no more than 3%, which is far better than the industry standard.

The entire process is carried out in a vacuum environment, with no organic solvent evaporation and no wastewater or waste gas emissions. It avoids the VOC pollution problems of traditional spraying processes and conforms to the development trend of green production in the automotive manufacturing industry.

Different functional film layers can be switched by changing the target material and process module. For example, SiO₂ film is used for scratch and wear resistance, TiO₂ film for UV resistance, and diamond-like carbon (DLC) film for high-hardness protection. There is no need to purchase multiple dedicated devices for different requirements.

It supports unattended continuous production. The coating time for a single batch can be controlled within 30 to 60 minutes, and the coating efficiency is 3 to 5 times that of traditional manual spraying. At the same time, it reduces manual operation errors, and the qualification rate of the film layer can reach over 98%.

It is a core piece of equipment in the car lamp production line of the original equipment manufacturer, used for the pre-factory protective coating of the headlights, taillights and turn signals of new cars. It is suitable for plastic lamps of various models such as Mercedes-Benz, BMW and Tesla, enhancing the durability and service life of the car lamps.

For the yellowed or scratched headlights of second-hand and old cars, this equipment can be used to re-coat and repair them, replacing the traditional headlight replacement solution and significantly reducing maintenance costs. It is widely applied in the headlight refurbishment business of auto repair shops and auto parts markets.

For LED and laser headlights compatible with new energy vehicles, while preparing high-transmittance protective films, the optical design of the film layer can optimize the light refraction Angle to enhance the lighting effect. It can also add anti-fingerprint and water-repellent functions to the car lights, keeping the lampshades clean and beautiful.

The high-hardness film layer prepared for the lamp coating of special vehicles such as engineering vehicles, off-road vehicles and fire engines can resist the impact of sand and gravel and chemical corrosion under harsh working conditions, ensuring the normal operation of the lamp in complex environments.

To meet the personalized demands of modification enthusiasts, a slight tint effect (light blackening) of the car lights is achieved through coating, enhancing the aesthetic appeal of the car lights without affecting the light transmittance, while retaining the protective function.