ã€China Aluminum Industry Network】1. Engineering design 1. The engineering design must be used for strength design calculations and tests. The production, installation, and acceptance are performed only according to the standard atlas and type inspection report provided by the profile manufacturer. This is wrong or even dangerous. behavior. Because the standard atlas is only a partial diagram of a certain series of windows, it does not indicate the load that the construction can bear according to the diagram, so it cannot be used as the basis for production, installation and acceptance. For different series of doors and windows, the strength or deflection check or test must be carried out according to the principle of less stress. 2. The strength and rigidity of floor doors and windows are generally insufficient, and the main force columns (beams) must be strengthened. 3. When the height of exterior doors and windows of high-rise buildings is >30M, it shall be implemented in accordance with GB511057 "Design Code for Building Lightning Protection". The choice of two materials 1, aluminum alloy profiles must comply with GB/T5237-2400 "aluminum alloy building profiles" requirements. 2. The selection and configuration of hardware accessories is one of the important factors to ensure the quality of doors and windows. Even a window with excellent performance must be guaranteed by the selection and configuration of high-quality accessories. 3. Sliding doors and windows of the pulley, tops, anti-shedding sealer, lower sealing block is to ensure the quality of sliding doors and windows is an important accessory. Pulleys are the key to smooth opening and closing of doors and windows. Roller shaft nylon wheels should be used. The anti-disengagement sealer is a safety measure to prevent the detachment of the window sashes, as well as the sealing function between the hooks and the upper slides. The ABS plastic and the EPDM rubber should be used with good durability. The lower sealing block plays a sealing role between the hooking rate and the glide path, and can effectively prevent the splashing phenomenon under the effect of the fluctuating load. The EPDM rubber should be used. Tops are the seals of window sashes and window frames, which determine the airtightness of doors and windows. Common chemical fiber slivers will curl and lose their sealing effect. Silicone tops must be used. 4. The hinges of hinged windows and doors (or sliding frictional hinges), handles, and sealing strips between the frames are the accessories that guarantee the quality of the hinged doors and windows. The bearing capacity of the hinge (or friction hinge of the sliding window) is the key to the safety of the doors and windows and the smoothness of the opening and closing. The bearing capacity of the hinge is stronger than that of the friction hinge, so the hinge can make a larger window sash For use, friction hinges are only suitable for smaller windows or top-hung windows. Handle important accessories related to safety and sealing performance of doors and windows. The ordinary handle is only suitable for use on sashes with smaller grids and loads. European multi-point handles are suitable for sashes with large grids and loads. Use; The sealing strip between the framed fan is the guarantee of the airtightness and watertightness of the flat open door and window, and the effective sealing ratio of the native PVC strip is about 5 years. Recycled PVC strips do not have sealing effectiveness, and it is desirable to use rubbers with good weather resistance such as EPDM. 5. The type, specification and performance of hardware accessories should comply with the relevant provisions of the current national standards. 6. Structural adhesives and weather-resistant adhesives used for hidden frames should be tested for compatibility with profiles and glass prior to use. Three processing and production 1. The processing of aluminum doors and windows should be carried out in the factory and must not be made on the construction site. 2. The drainage hole on the sliding window chute shall be processed following the principles of the inner and outer fan inner holes to ensure the sealing performance of the doors and windows, especially the horizontal sliding door of the horizontal top bar. 3. Before the assembly of aluminum doors and windows, the end processing burrs should be removed, and the end nodes and the profile joints must adopt sealing measures such as waterproof glue to prevent the structure from seepage. 4. The structural assembly assembly of hidden frames must be made and maintained in a clean room. It is necessary to remove dust, grease, and other contaminants from the surfaces of the glass and aluminum frame with a solvent. Every clean of one component or glass, the clean dry cloth should be replaced. The solvent should be poured onto the cloth. Do not touch the solvent bottle with the cloth. mouth. The glue must be full and no bubbles or leakages should occur. The surface of the glue joint should be smooth and smooth; the remaining glue that receives the glue joint must not be reused. Four installation, product protection 1. Before installation, check the shape and position accuracy of the door and window openings and check whether the number and location of the embedded squats meet the design requirements. Whether the high-rise windows are connected to the lightning protection zone according to regulations, the unqualified portion shall be urged to be rectified by the construction unit.