[China Aluminum Network] The surface materials used in the metal curtain wall mainly include the following: aluminum composite panels, single-layer aluminum panels, aluminum honeycomb panels, fireproof panels, titanium-zinc-aluminum-plastic composite panels, sandwich insulation aluminum panels, stainless steel panels, and color Coated steel, steel plate and so on. Aluminum composite panel is composed of two layers of 0.5mm thick aluminum plate with 2-5mm thick polyethylene or rigid polyethylene foam plate sandwiched between inner and outer layers. The surface of the aluminum composite plate is coated with fluorocarbon resin coating to form a tough and stable. The film, adhesion and durability are very strong, rich colors, the back of the board is coated with polyester paint to prevent possible corrosion. Aluminum composite panels are commonly used panel materials for the early appearance of metal curtain walls. The single-layer aluminum plate adopts 2.5mm or 3mm thick aluminum alloy plate, and the surface of the single-layer aluminum plate for the outer curtain wall is the same as the front coating material of the aluminum composite plate. The film layer has toughness and stability, and the adhesion and durability are completely consistent. The single-layer aluminum sheet is another common metal curtain wall material after the aluminum composite sheet, and is more and more applied. Honeycomb aluminum plate is a kind of composite material bonded by two aluminum plates plus honeycomb core material. According to the use function of the curtain wall and the requirements of the endurance period, honeycomb aluminum plates with thickness of 10mm, 12mm, 15mm, 20mm and 25mm are used respectively. The honeycomb aluminum plate with a thickness of 10 mm shall be made of a 1 mm frontal aluminum plate and a 0.5-0.8 mm thick back aluminum alloy plate and an aluminum honeycomb. The thickness of the honeycomb aluminum plate above 10 mm shall be the thickness of the aluminum alloy plate on the front and the back. For 1mm, the honeycomb aluminum for the curtain wall should be aluminum honeycomb. The shapes of the honeycomb are regular hexagon, flat hexagon, rectangle, square, cross, flat square, etc. The honeycomb core material must be specially treated, otherwise its strength is low, and the service life is short. If the chemical oxygen is applied to the aluminum foil, its strength and corrosion resistance will increase. In addition to aluminum foil, there are fiberglass honeycombs and paper honeycombs in the honeycomb core material, but not much is actually used. Due to the high cost of honeycomb aluminum panels, the amount is small. The fireproof board is made of metal plate (aluminum plate, stainless steel plate, colored steel plate, titanium plate, titanium plate, copper plate, etc.), and the non-halogen flame-retardant inorganic material is used as the core layer. The fireproof plate is hot pressed and composited. A fireproof sandwich sandwich panel. According to GB8624-2006, it is divided into two combustion performance grades A2 and B. The metal sandwich fireproof board not only has the fireproof function, but also maintains the mechanical properties of the corresponding metal plastic composite board. It can be used as a new building and renovation of old houses' exterior walls, interior wall decoration materials and indoor ceilings. It is especially suitable for large-scale public buildings such as conference centers, exhibition halls and gymnasiums with high personnel density and high fire performance requirements. , theaters, etc. Titanium-zinc-aluminum-plastic composite panel is a new type of high-grade aluminum-plastic composite panel made of titanium-zinc alloy plate as panel, 3003H26 (H24) aluminum plate as back plate, and high-pressure low-density polyethylene (LDPE) as core material. Material, it combines the characteristics of titanium zinc plate (metal texture, surface self-repair function, long service life, good plasticity, etc.) and composite plate flatness, high bending strength advantages in one, is a model of the combination of classical art and modern technology . Titanium-zinc-aluminum composite panels are mainly used for building roofing and curtain wall systems. In the early stage of use, a fresh blue-gray is natural in the distance, and the natural quality of the metal is evident in the near-term. Over time, the surface of titanium-zinc plates exposed to the atmosphere will gradually form a dense layer of hard zinc carbonate coating to prevent further erosion of the board surface. Even scratches and flaws will disappear completely during this evolution. For those buildings that need to create a strong sense of naturalism, it is undoubtedly an ideal decorative material. It is particularly suitable for environments with a strong natural and historical atmosphere. It can add unique charm to modern architecture and classical architecture. Good strength and rigidity can withstand strong winds and other adverse weather conditions. Plasticity is good, easy to process and install, is conducive to three-dimensional modeling, can adapt to changing layout requirements, can fully praise the architect's personality, meet its rich creative imagination and inspiration requirements. The sandwich insulation aluminum plate is similar to the aluminum honeycomb plate and the aluminum composite plate, except that the core material in the middle is different, and the insulation core layer of the sandwich core is made of an insulation material (rock wool, etc.). Because of the high price of aluminum core insulation, and the use of other aluminum insulation materials within the sandwich can also achieve the same insulation effect with the sandwich insulation aluminum, so the current sandwich aluminum insulation board is not used. Stainless steel plate with mirror stainless steel, matt stainless steel plate, titanium plate and so on. The durability and wear resistance of the stainless steel plate are very good, but too thin plates will bulge, too heavy weight and very high prices, so the stainless steel plate curtain wall is not used much, but only in the local decoration of the curtain wall Big role.
