3、 Panel design
1) The design of the aluminum composite panels should adopt the method of edge folding around, and the surface aluminum plate should not be touched when slotting, and the thickness of the remaining plastic core after slotting should not be less than 0.3mm. The core material of the ACM panels should not be exposed to the atmosphere directly. After bending, the four corner butt joint of the panel shall be sealed with sealant.
2) The folding edge of the aluminum composite panel can not be used as the frame directly. The folding edge of the aluminum composite panel can be set as required, with the reinforced frame and the middle rib. The reinforced frame or the middle rib shall be made of aluminum alloy square tube, groove or angle profile. The reinforced frame or middle rib shall be reliably connected with the panel, and anti-corrosion measures shall be taken. Aluminum rivets can be used to connect the folding edge of the frame and the aluminum composite panel, and the spacing between the rivets shall be controlled at about 200 mm. Both ends of the middle rib shall be reliably connected with the frame, and the connection shall meet the requirements of force transmission.
3) The reinforcing middle rib shall have enough rigidity and can adopt a metal square tube, groove-shaped or angle shaped profile. The section thickness of the reinforcing rib shall not be less than 1.5mm. The distance between the aluminum composite panel stiffeners is 300-500mm.
4) The middle rib and panel are designed to be bonded by neutral silicone structural sealant. The connection structure and calculation shall meet the use requirements of silicone structural sealant.
5) The aluminum composite material panel can be fixed on the beam or column with bolts, pressing plates or hooks. The diameter of the fixed bolt shall not be less than 4mm, and the number of bolts shall be determined after calculation according to the wind load and seismic action borne by the plate.
6) The thickness of the panel hanging piece or corner code shall not be less than 3mm, and the material can be aluminum alloy material or steel conforming to the current national standard. The rivets or anchor bolts used for connecting the hanging parts or corner codes with the panel shall be made of stainless steel, and the diameter and quantity of rivets, screws or bolts shall be determined by calculation. The distance from the center of rivet, screw or bolt hole to the edge of the plate shall not be less than 2 times the hole diameter, and the hole center distance shall not be less than 3 times the hole diameter.
7) the bottom of the seam should be filled with foam strips. Neutral silicone weather-resistant sealant shall be used for caulking the slab joint, the thickness of the joint shall not be less than 3.5mm, the width shall not be less than twice of the thickness; the width of the slab joint shall not be less than 8mm;
8) The neutral silicone weather-resistant sealant used for coating surface shall be subject to compatibility test, and primer can be applied if necessary;
9) During riveting connection, no more than 0.3mm gap should be reserved between the hole and the rivet. Avoid the deformation of the aluminum composite panel caused by extrusion.
10) When assembling the angle, the back of the joint shall be lined with an aluminum panel with thickness no less than 1.5mm, and the ACP and lining plate shall be connected with rivets.
ACP On-site Construction
4、 ACP construction
1) Before construction, the horizontal and vertical connectors shall be inspected, measured and adjusted to reduce the installation error of aluminum composite panels;
2) When installing the ACP, it must be installed in the same direction as the direction marked on the protective film.
3) When riveting the aluminum composite panel, it is recommended to fix it in the order from the middle to both ends of the panel, and in consideration of the expansion of the panel when the temperature changes, the hole diameter of the composite panel should be about 1mm larger than the rivet diameter to ensure the flatness of the aluminum composite panel;
4) For rivets to be structurally fixed outdoors, the rod diameter shall be 5mm, and the rivet head diameter shall be 11mm ~ 14mm.
5) The gluing operation should not be carried out on rainy days. The weatherproof glue of the silicon cave shall be fully injected, and shall be carried out under the environment of 15°C ~ 30°C temperature and 50% relative humidity.
6) The protective film on the board surface must be removed within the date indicated on the protective film.
7) One year after the complete acceptance of the project and overall inspection shall be carried out for the ACP project, and every five years thereafter.
8) The baking paint color of the aluminum composite material panel is allowed to change slightly and evenly over time on the same facade, but the long-term performance test shall be carried out according to the national standard of fluorocarbon paint and the quality assurance certificate of 10 years or more shall be provided to the customer