To prevent light tempered glass from breaking during transportation, a protective system must be established across five dimensions: packaging material selection, structural design, securing methods, environmental control, and operational specifications. Specific measures are as follows:
Packaging materials must provide multiple layers of cushioning and protection. High-strength corrugated or wooden boxes should be used for the outer layer. Five-layer corrugated boxes (containing two layers of corrugated paper and two layers of cardboard) absorb impact through structural deformation, while wooden boxes are suitable for transporting heavy or irregularly shaped glass. The inner cushioning material should be high-density foam, bubble wrap, or pearl foam. These materials deform to disperse impact energy and reduce stress concentration. For vulnerable edges, additional foam strips or L-shaped metal corner guards should be used for reinforcement to prevent chipping or cracking caused by impact.
The packaging structure should be tailored to the product's characteristics. For light tempered glass with thin walls, a "customized lining + layered insulation" solution should be employed. For example, foam slots should be cut according to the size of the glass, ensuring each piece fits into its own slot to avoid direct contact. When stacking multiple layers of glass, 2-3 cm thick bubble wrap or corrugated cardboard should be placed between each layer to create an elastic barrier. Longitudinal support strips should be installed inside the packaging box, maintaining a 1-2 cm gap from the edges of the glass to prevent both shaking during transportation and excessive localized stress caused by supports being too close together.
Securing methods must ensure transportation stability. After the glass is packed into the packaging box, it should be secured to the bottom of the box with straps or pressure-sensitive tape to prevent movement during vehicle vibrations. For large lighting glass, a "wooden pallet + steel strapping" combination can be used: Place the glass vertically on a wooden pallet and wrap steel straps around the edges to reinforce it, ensuring the glass and pallet form a single structure. Transport vehicles should be equipped with anti-vibration devices, such as air suspension or shock-absorbing springs, to reduce the impact of road vibration on the glass.
Environmental control should avoid temperature and humidity risks. Lighting tempered glass is susceptible to internal stress imbalances due to thermal expansion and contraction in low temperatures. During winter transportation, a constant-temperature vehicle or blankets should be used to maintain the interior temperature above 5°C. High temperatures and high humidity can cause condensation on the glass surface, increasing the risk of slippage. Therefore, desiccant should be placed in the packaging and the vehicle should be well ventilated. For transport across seasons or climate zones, containerized transport is recommended, with temperature control equipment used to precisely regulate the internal environment.
Operational standards must be adhered to throughout the entire transportation process. Forklifts or lifting equipment should be used during loading and unloading to avoid bumps and bumps caused by manual handling. When loading, the glass should be placed vertically, with its length aligned with the vehicle's direction of travel, to minimize inertial impact. Regularly inspect the packaging during transportation. Any deformation or shifting of the container should be immediately reinforced or repacked. When unloading at the destination, the glass should be lowered slowly onto a flat surface using a hydraulic lift to prevent breakage caused by tilting or sudden drops.
Systematic implementation of these measures can significantly reduce the breakage rate of lighting tempered glass during transportation. For example, after a lighting company adopted the "customized foam lining + wooden box steel belt reinforcement + constant temperature transportation" solution, the transportation damage rate of its export products dropped from 8% to 0.5%, verifying the effectiveness of the protection system.
