ã€China Aluminum Industry Network】 1. Engineering design 1. The engineering design must be used for strength design calculations and tests. It is based on the standard atlas and type inspection report provided by the profile manufacturer to make, install, and accept. This is wrong or even dangerous. the behavior of. 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 stiffness of landing doors and windows are generally insufficient, and the main force columns (beams) in them should be strengthened.
3. When the height of doors and windows of high-rise buildings exceeds 30M, it shall be carried out in accordance with GB50057 "Lightning Protection Design Code for Buildings".
Second, the choice of materials 1, aluminum alloy profiles must meet GB/T5237-2000 "aluminum alloy building profiles" requirements.
2. The selection and configuration of hardware accessories is one of the important factors for ensuring 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. The pulleys, tops, anti-shedding sealers, and lower seal blocks for sliding doors and windows are accessories that ensure the quality of sliding doors and windows. Pulleys are the key to the smooth opening and closing of doors and windows. Roller-bearing nylon wheels should be used. The anti-stripping sealer is a safety measure to prevent the window sash from falling off, and at the same time, it has a sealing function between the hook and the upper slide. The ABS plastic and the EPDM rubber with good durability should be used. 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, hinged doors and windows hinges (or sliding window friction hinges), handles, box seals between the sealant is to ensure that the quality of flat doors and windows is an important accessory. 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 applicable to sashes with smaller grids and loads. The European multi-point handle is 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, the sealing effectiveness of the original PVC strip is about 5 years, and the regenerated PVC strip does not have the sealing effectiveness. It is desirable to use a weather resistant rubber such as EPDM.
5. The model, specification and performance of hardware accessories shall comply with the relevant provisions of the current national standards.
6. Structural adhesives and weather-resistant adhesives used for concealed frame windows should be tested for compatibility with profiles and glass prior to use.
Third, processing production 1, aluminum doors and windows processing and production should be carried out in the factory, shall not be produced on the construction site.
2. The drainage hole on the sliding window chute should be processed according to the principles of the inner and outer fan inner holes to ensure the sealing performance of the doors and windows, especially the sliding door with horizontal horizontal top.
3, before the assembly of aluminum doors and windows, should remove the end of processing burrs, end nodes and profile joints must take waterproof tape and other sealing measures to prevent structural water seepage.
4. Hidden frame window structure assembly assemblies 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.
Fourth, installation, product protection 1, should be installed before the shape of the door and window openings and positioning accuracy check, check the number and location of embedded rake meet the design requirements, whether the high-level windows access to lightning protection according to regulations, for unqualified Some of them should urge the construction unit to rectify.
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