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Among the many lighting devices of automobiles, fog lamps play a vital role in bad weather conditions with their unique functions. As the outer layer protection of this key component, the manufacturing process and surface treatment of fog lamp glass cover are the crystallization of technology and wisdom.
The manufacturing process of fog lamp glass cover begins with precise mold forming. The mold design needs to be accurately calculated according to the size, shape and optical requirements of the fog lamp to ensure that the molded glass cover meets both the appearance requirements and the optical performance. Under high pressure and high temperature, the raw materials are injected into the mold, and the initial fog lamp glass cover is formed after cooling and curing.
Then, it enters the surface treatment stage. This stage is the key to improving the performance of fog lamp glass cover. Through a series of complex processes such as grinding, polishing, cleaning, etc., the defects and impurities on the surface of the glass cover are removed, laying a good foundation for subsequent coating treatment.
Surface treatment is one of the most critical links in the manufacturing process of fog lamp glass cover. It not only affects the appearance and texture of the glass cover, but also directly affects the realization of its anti-fog, anti-scratch, anti-ultraviolet and other functions.
Anti-fog treatment: The anti-fog function of the fog lamp glass cover is crucial. In a foggy environment, if fog is generated inside the glass cover, it will seriously affect the transmission and lighting effect of light. Therefore, through a special anti-fog coating or treatment process, a tiny hydrophilic film is formed on the surface of the glass cover. When the water mist contacts this film, it will quickly spread out to form a uniform water film instead of condensing into small water droplets, thereby effectively preventing internal fogging.
Anti-scratch treatment: During road driving, the fog lamp glass cover will inevitably be impacted by external forces such as flying stones and small collisions. In order to protect its surface from damage, anti-scratch treatment is particularly important. By enhancing the hardness of the glass cover surface or using a wear-resistant coating, its scratch resistance can be significantly improved and its smoothness can be maintained for a long time.
Anti-ultraviolet treatment: Long-term exposure to outdoor environments will cause damage to the fog lamp glass cover by ultraviolet rays, resulting in problems such as decreased light transmittance and color fading. Therefore, in the surface treatment process, anti-ultraviolet ingredients must also be added to effectively block the invasion of ultraviolet rays and protect the glass cover from damage.
After precise mold forming and complex surface treatment, the fog lamp glass cover also needs to undergo rigorous optical testing. The test content includes transmittance, scattering angle, lighting area distribution and other aspects. Through the analysis and comparison of test data, it is ensured that the lighting effect of the fog lamp glass cover in the fog reaches the best state, providing the driver with a clear and wide field of vision.
The manufacturing process and surface treatment technology of the automobile fog lamp glass cover is a complex and delicate project. It not only requires the manufacturer to have superb craftsmanship and rich experience accumulation, but also requires in-depth understanding and mastery of optical principles, material science and other fields. It is the integration of these technologies and wisdom that enables the fog lamp glass cover to play an excellent lighting performance in bad weather conditions, escorting the driver's safe travel.
