The surface materials used in the metal curtain wall mainly include the following: aluminum composite board, single-layer aluminum board, aluminum honeycomb board, fire board, titanium-zinc-plastic aluminum composite board, sandwich thermal insulation aluminum plate, stainless Steel plate, color coated steel plate, enamel steel plate, etc. .
Aluminum composite board
It is made up of 2-5mm thick polyethylene or rigid polyethylene foam board with 0.5mm thick aluminum plate inside and outside. The surface is coated with fluorocarbon resin coating to form a tough and stable film. Adhesion and durability are very strong, rich in color, and the back of the board is coated with polyester paint to prevent possible corrosion. Aluminum composite panels are commonly used panel materials in the early appearance of metal curtain walls.
Single layer aluminum plate
The aluminum alloy plate of 2.5mm or 3mm thickness is used, and the surface of the single-layer aluminum plate for the outer curtain wall is consistent with the material of the front surface of the aluminum composite plate, and the film layer has the same toughness, stability, adhesion and durability. Single-layer aluminum plate is another common panel material for metal curtain wall after aluminum composite board, and it is applied more and more.
Honeycomb aluminum plate
It is a composite material with two honeycomb plates and a honeycomb core material bonded together. According to the function of the curtain wall and the durability requirements, honeycomb aluminum plates with thicknesses of 10mm, 12mm, 15mm, 20mm and 25mm can be selected respectively, and the thickness is 10mm. Honeycomb aluminum plate should be made of 1mm front aluminum plate and 0.5-0.8mm thick back aluminum alloy plate and aluminum honeycomb. Honeycomb aluminum plate with thickness of 10mm or more should have thickness of 1mm on the front and back of aluminum alloy plate. The honeycomb aluminum plate should be aluminum honeycomb. The shape of the honeycomb has a regular hexagon, a flat hexagon, a rectangle, a square, a cross, a flat square, etc. The honeycomb core material has to be specially treated, otherwise its strength is low and the life is short, such as aluminum foil. With chemical oxygen, its strength and corrosion resistance will increase. The honeycomb core material has glass fiber reinforced plastic honeycomb and paper honeycomb in addition to aluminum foil, but it is not used in practice. Since the cost of the honeycomb aluminum plate is high, the amount is not large.
Fireproof board
The metal plate (aluminum plate, stainless steel plate, color steel plate, titanium zinc plate, titanium plate, copper plate, etc.) is used as a panel, and the halogen-free flame-retardant inorganic material-filled core material is a core layer.
A fireproof sandwich sandwich panel made of hot pressed composite panels. According to GB8624-2006, it is divided into two combustion performance grades A2 and B.
Metal sandwich fire board
It not only has the fireproof function, but also maintains the mechanical properties of the corresponding metal-plastic composite board. It can be used as exterior wall, interior wall decoration material and indoor ceiling for new buildings and renovation of old houses. It is especially suitable for some large public buildings with high density and high fire performance requirements such as conference center, exhibition hall and gymnasium. , theater, etc.
Titanium zinc plastic aluminum composite board
It is a new type of high-grade aluminum-plastic board building material with titanium-zinc alloy plate as the panel, 3003H26 (H24) aluminum plate as the backing plate and high-pressure low-density polyethylene (LDPE) as the core material. The characteristics of the board (metal texture, surface self-repair function, long service life, good plasticity, etc.) are combined with the advantages of flatness and high bending resistance of the composite sheet, which is a model combining classical art with modern technology.
Titanium-zinc-plastic aluminum composite panels are mainly used for roofing and curtain wall systems of buildings.
In the early days of use, the distant view is a natural new blue-gray, and in the near future, it shows the sense of simplicity of natural metal. Over time, the surface of the titanium-zinc plate exposed to the atmosphere will gradually form a dense and hard zinc carbonate anti-corrosion layer to prevent further corrosion of the surface, even if scratches and flaws disappear completely in this evolution process. For those buildings that need to create a strong sense of naturalness, it is undoubtedly the ideal decorative material, especially suitable for the natural and historical atmosphere, adding unique charm to modern architecture and classical architecture. It has good strength and rigidity to withstand strong winds and other harsh weather conditions. Good plasticity, easy to process and install, it is conducive to three-dimensional modeling, can adapt to a variety of layout requirements, can fully publicize the architect's personality, to meet its rich creative imagination and inspiration requirements.
Sandwich insulation aluminum plate
Similar to the form of aluminum honeycomb panel and aluminum composite panel, except that the core material in the middle is different, the core layer of the sandwich thermal insulation aluminum plate is made of thermal insulation material (rock wool, etc.). Due to the high price of the sandwich thermal insulation aluminum plate, and the same thermal insulation effect as the sandwich thermal insulation aluminum plate can be achieved by using other aluminum plate internal insulation materials, the current use of the sandwich thermal insulation aluminum plate is not large.
Stainless steel plate
There are mirror stainless steel plates, matt stainless steel plates, titanium plates and so on. The durability and wear resistance of the stainless steel plate is very good, but the too thin plate will bulge, the excessive weight and the price are very high, so the stainless steel curtain wall is not used much, but it is played on the partial decoration of the curtain wall. Great role.
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