As a renowned domestic automobile and parts manufacturer, Dongfeng Xiaokang's lighting parts molding process plays a key role in ensuring product quality and performance. Lighting parts primarily include housings and internal components such as headlights, taillights, and fog lights. These components must not only exhibit excellent optical properties but also meet requirements for weather resistance, impact resistance, and lightweighting.
Dongfeng Xiaokang primarily utilizes two mainstream molding technologies: injection molding and blow molding. Injection molding is suitable for plastic parts with complex structures and high precision requirements, such as lamp housings and reflectors. Plastic material is melted at high temperatures, injected into a precision mold, and then cooled and solidified under high pressure to form parts with high dimensional accuracy. This process offers advantages such as high production efficiency and excellent surface finish, making it suitable for large-scale production.
For parts requiring hollow structures, such as some light guides, Dongfeng Xiaokang uses blow molding. A heated plastic parison is placed in a mold, and compressed air is blown into it to expand and conform to the mold walls, ultimately creating a hollow part with uniform wall thickness. This process effectively reduces weight while maintaining structural strength, making it suitable for components requiring high lightweighting.
Furthermore, to enhance the weather resistance and UV resistance of lighting components, Dongfeng Xiaokang prioritizes engineering plastics such as polycarbonate (PC) and acrylonitrile butadiene styrene (ABS), adding modifiers to enhance their impact resistance and high-temperature resistance. Some high-end products also utilize two-shot injection molding or insert molding to achieve a perfect balance of functionality and aesthetics.
Overall, Dongfeng Xiaokang ensures a balance between performance, cost, and production efficiency for lighting components through optimized molding processes and material selection, providing a solid foundation for the reliability of the vehicle lighting system.
