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2025-12-10 198
What are the power configuration standards for the production base?
Measured data in an industrial park in the Pearl River Delta shows that the rolling screen production line needs to meet the three-phase 380V ±5% voltage fluctuation range, and each thousand square meters of production capacity corresponds to a 500kVA transformer capacity. It is recommended to choose a park equipped with a dual-circuit power supply system , so that in the event of a sudden power outage, the reflow soldering equipment can maintain a slow shutdown for 15 minutes, avoiding the loss of original parts worth 230,000 yuan/batch.
Aluminum or steel for box structure?
Comparative test data reveals (36 months of outdoor use):
| index | Aluminum alloy box | Galvanized steel box |
|---|---|---|
| Deformation | ≤0.8mm/m² | ≥2.3mm/m² |
| Cooling efficiency | 38W/m·K | 16W/m·K |
| Salt spray test life | 3000 hours | 1200 hours |
| Preferred 6 series aviation aluminum materials, combined with the dovetail splicing structure, the box splicing seams can be controlled within 0.1mm. |
What parameters should we pay attention to when selecting a driver IC?
The experience of a smart transportation project shows:
How does the optical coating affect the display effect?
Comparison of three common membrane materials:
| type | transmittance | Anti-UV index | Viewing range |
|---|---|---|---|
| Ordinary diffusion film | 82% | Level 3 | 140° |
| Nanoprism film | 91% | Level 5 | 160° |
| microstructured membrane | 88% | Level 7 | 170° |
| It is recommended to choose a composite film with anti-glare coating, so that the screen contrast can still maintain ≥5000:1 in a strong direct light environment. |
Remember to bring a light meter during the on-site inspection - measure the brightness difference between the four corners and the center of the screen at a distance of 3 meters. High-quality products should be controlled within 15%. A municipal project ignored this detail, resulting in a 28% reduction in visual distance at night. Remember, real professional manufacturers will equip a dark room test area in the workshop and use standard color cards to demonstrate the color restoration process on-site. This process can best reveal the depth of technical strength.
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