ã€China Aluminum Network】 (1) Aluminum alloy doors and windows are not installed in the process of construction of protection tape for aluminum profiles necessary protection; construction due to handling caused by the profile corners / bump coating, it is necessary to prevent this species The abnormal corrosion phenomenon is very important for the protection of aluminum alloy door and window profiles in the construction process of doors and windows. During the production process, all operations must pay attention to prevent the surface coating of the profile from scratching/bumping, and the manufactured door and window must be wound around the frame before installation. After the adhesive tape is installed on the wall, it is forbidden to step on the staff. When the scaffolding needs to be placed, the door and window frame is protected by using wood and other materials.
(2) Doors and windows with abnormal corrosion phenomena are corroded by long-term water seepage and moisture. Therefore, aluminum alloy doors and windows need to be waterproof and damp-proof during the construction process. Generally, the sound insulation of aluminum alloy doors and windows and wall openings should be insulated. Moisture-proof and non-corrosive materials, such as polyurethane foam fillers, are used to prevent the treatment; if cement mortar is used to fill in the space, waterproof mortar should be used, and sea sand is strictly prohibited as the waterproof mortar.
(3) In the case of abnormal corrosion, we recommend not to use sea sand as much as possible for wall building mortar. If it is really necessary to use the area, it is recommended to use water for cleaning in accordance with GBS14684-2001 for construction sands, reducing the chloride ion to ≤ 0.06. Below the %, at the same time, in the construction process, the aluminum alloy door and window profile and the wall hole contact position are well preserved. Generally, anti-sliding and waterproof measures can provide anti-corrosion effect. Applying asphalt is also a more feasible method.
(4) Aluminum alloy doors and windows need to be cleaned when the construction of doors and windows is delivered, the protective film paper is torn off, and the cement and lime mortar adhered to the surface of the profile during the construction of the wall are removed. Cleaning the dirt is usually done with a neutral detergent. Fiber brushes can also be used to remove attached dust. Sandpaper or steel wire brushes must not be used for sanding.
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