The aluminum alloy plate produces discoloration and discoloration, mainly due to improper selection of the plate. The alloy aluminum plate is divided into an indoor plate and an outdoor plate, and the surface coating of the two plates is different, which determines the different occasions to which it is applied. The surface of the board used in the room is usually coated with a resin coating. This coating can not adapt to the harsh outdoor environment. If it is used outdoors, it will naturally accelerate the aging process and cause discoloration and discoloration. The surface coating of the outdoor alloy aluminum plate is generally coated with a fluorocarbon resin which is resistant to aging and ultraviolet rays, and the plate is expensive. Some construction units deceived the owners and used the indoor plates to pretend to be anti-aging and anti-corrosion high-quality fluorocarbon plates, and extracted unreasonable profits, thus causing serious discoloration and discoloration of the aluminum plates used in the project.
The alloy aluminum plate is opened and peeled off, mainly due to the improper selection of the adhesive. As an ideal adhesive for outdoor alloy aluminum sheet engineering, silicone rubber has unique advantages. In the past, China's silicone rubber relied mainly on imports, and its value has made many people discouraged. Only those high-rise buildings with expensive curtain wall projects dare to care. At present, China's Zhengzhou, Guangdong, Hangzhou and other places have successively put into production different brands of silicone rubber, resulting in a sharp drop in prices. Now, when buying alloy aluminum sheets, the seller will recommend the special quick-drying glue. This kind of glue can be used indoors, and it is used in the outdoor environment where the climate change is impermanent, and the phenomenon of opening and degumming of the board occurs. There are many reasons for the deformation of the surface of the aluminum alloy plate and the drumming. In the past, during the construction, this quality problem appeared. We thought it was the quality of the plate itself. Later, after concentrated analysis, we found that the main problem was on the base plate of the alloy aluminum plate, followed by the alloy aluminum plate itself. Quality issues. Dealers often provide us with the construction process of alloy aluminum plates. The recommended base materials are mainly high-density boards, wood boards and the like. In fact, when such materials are used outdoors, their service life is very fragile. After wind, sun and rain, deformation will inevitably occur. Since the base material is deformed, what is the deformation of the alloy aluminum plate as the surface layer? It can be seen that the ideal outdoor base material should be rust-proofed, and then the angle steel and square steel tube are formed into a skeleton. If conditions permit, it is more desirable to use aluminum profiles as the skeleton. The skeleton made of this kind of metal material is not much higher than the wooden keel and high-density board, which can ensure the quality of the project.
When the aluminum alloy plate is used to decorate the surface of the building, there is generally a gap between the plates. For the sake of aesthetics, it is common to fill the gap with a black sealant. In order to save time, some construction workers do not need paper tape to ensure the tidy and regular glue, but use the protective film on the surface of the alloy aluminum plate as a substitute. Since the protective film will have different degrees of tearing when the aluminum alloy sheet is cut, it is impossible to use the protective tape as a substitute for the protective tape. Through the analysis of some common quality problems encountered in the processing and assembly of alloy aluminum plates (composite aluminum plates), the measures and methods for solving them are proposed, which will surely enable the construction workers to have common quality of alloy aluminum plates when processing and installing alloy aluminum plates. The problem can be prevented and controlled. The aluminum-plastic composite board is a composite material which is processed on a special alloy aluminum plate production equipment by using a chemically coated aluminum plate as a surface material and a polyethylene plastic as a core material. The unique properties of the aluminum-plastic composite panel determine its wide range of uses: it can be used for building exterior walls, curtain wall panels, renovation of old buildings, interior wall and ceiling decoration, advertising signs, display stands, purification and dust prevention. engineering. Aluminum-plastic composite panels have been widely used in China and belong to a new type of architectural decoration materials.
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