What are the folds of aluminum
Aluminum-plastic composite board slot can generally open V-groove, U-slot, etc., several typical slotted as shown in Figure 1. Aluminum-plastic composite panel plate in the cutting board to take into account the size of the fold , Generally add about 25mm on each side. Cut the composite board needs four sides of the planing slot, that is cut to a certain width of the inner layer of aluminum and plastic layer, slot depth must be strictly controlled in the front aluminum plate at least 0.3mm thick plastic core To ensure that the aluminum-plastic composite panels have sufficient toughness to prevent the fold at the aluminum skin fracture, and then folded into a 90 ° angle, so the board surface weight and curtain wall at any time will be positive and negative wind load pressure by the four sides 0.5mm aluminum plate to bear, therefore, slotting is the aluminum-plastic composite panel panel of the weakest link, but also under the wind load under the first destruction of the site
