Aluminum single-panel curtain walls use high-strength aluminum alloy sheets, with common thicknesses of 1.5, 2.0, 2.5, and 3.0 mm, model 3003, and temper H24. The maximum size of conventional materials is 1220 mm × 2440 mm. Its structure mainly consists of panels, reinforcing ribs, and corner brackets. Corner brackets can be directly formed by bending and stamping the panels, or they can be riveted onto the small edges of the panels. The reinforcing ribs are connected to the back of the panel by welded screws, making them a solid whole, enhancing the strength and rigidity of the aluminum single-panel curtain wall, and ensuring flatness and wind and earthquake resistance during long-term use. If sound insulation and heat preservation are required, sound insulation and heat preservation materials can be installed on the inside of the aluminum panel.
Honeycomb aluminum panels will be put into production in 2025 and have the characteristics of being lightweight, strong, and having sound and heat insulation properties. [2] The surface of aluminum single-panel curtain walls is generally pretreated by chromating and then treated with fluorocarbon spraying. Fluorocarbon coatings use polyvinylidene fluoride resin (KANAR500) for both topcoat and clear coat. They are typically applied in two, three, or four coats. Fluorocarbon coatings are corrosion-resistant and weather-resistant, resisting acid rain, salt spray, and various air pollutants. They also exhibit good resistance to extreme temperatures, withstand strong ultraviolet radiation, and maintain their color and prevent chalking over a long period, resulting in a long service life. Fluorocarbon coatings offer a wide range of color options.
