Automotive Side Mirror Housing and Glass Assembly

This assembly includes a high-gloss black protective cover, white internal bracket, flat reflective glass, and LED turn signal light, forming the core aesthetic and functional module of the vehicle's exterior side mirror system. The black housing features a streamlined, large-curvature design that must closely follow the body's waistline contour. The white component serves as the internal load-bearing structure, with reserved clips and screw posts for securing the glass adjustment mechanism and electronic components. The transparent lens at the bottom incorporates a light-guiding prism structure to provide clear side turn signal warnings.

The manufacturing challenge for Class A surfaces lies in eliminating injection molding sink marks, weld lines, and flow marks to ensure mirror-level smoothness and consistent gloss. The high-gloss black shell is highly sensitive to mold polishing precision and injection molding parameters (such as holding pressure and mold temperature control); any minor surface defect will be amplified under lighting. Meanwhile, the assembly gap between the glass and housing must be controlled within micron-level tolerances to prevent wind noise and ensure waterproof sealing, imposing strict requirements on dimensional stability.

Leveraging our closed-loop production capabilities in injection molding and painting, we offer one-stop delivery from raw material modification and precision molding to primer, base coat, and clear coat processing. Our production site is equipped with Haitian/LK injection molding machines and inspection equipment such as BYK colorimeters and Coordinate Measuring Machines (CMM). This allows us to strictly control batch color consistency (Delta E value) and dimensional tolerances of key mounting points. Compliant with the IATF 16949 quality management system, our products meet the dual acceptance requirements for automotive-grade components regarding aesthetic quality and functional reliability.