Precautions for polycarbonate board
1. It is strictly forbidden to drill the screws directly during the construction of the polycarbonate board. The screw holes should be drilled first, and then the screws should be installed. If the plate needs to be bent, it is strictly forbidden to screw on the bending stress point. Regular cleaning and maintenance to prevent the corrosion of acid and alkali dust on the board, it is recommended to rinse with warm water.
2. Neutral dense glue and rubber pad suitable for polycarbonate plastic must be selected. To allow the displacement of the plate expansion during drilling and installation, the diameter of the hole should be greater than 50% of the diameter of the screw, and the distance between the screw hole and the edge of the plate should not be less than 50mm, and the screw should not be tightened too tightly. The screws should not be too dense. It is recommended to use one screw every 50cm or more (the thicker the plate, the larger the screw interval is required).
3. The joint of the two polycarbonate plates should reserve enough space for expansion and contraction according to the changes in the local temperature difference. Under normal circumstances, the gap width is more than 50% of the screw diameter. When cold bending, the bending direction must be perpendicular to the direction of the ribs of the plate, the cold bending radius of the sun plate must be greater than 175 times the thickness of the plate, and the cold bending radius of the endurance plate must be greater than 100 times the thickness of the plate. The cold bending radius calculation formula: Ru003d1/2h+㎡/8h (Ru003dbending radius; hu003darch height; mu003dspan).
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