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 green plates with thickness of honeycomb aluminum plates of 10mm, 12mm, 15mm, 20mm and 25mm can be selected respectively. The thickness is The 10mm honeycomb aluminum plate shall be made of 1mm front aluminum plate and 0.5-0.8mm thick back aluminum alloy plate and aluminum honeycomb. The thickness of the aluminum alloy plate with the thickness of 10mm or more shall be 1mm. The honeycomb aluminum plate for the curtain wall 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 The chemical oxygen of the aluminum foil will increase its strength and corrosion resistance. 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.
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