First, engineering design 1. The engineering design must be used for strength design calculation and testing. It is only made according to the standard atlas and the type test report provided by the profile manufacturer. It is wrong or even dangerous behavior. Because the standard atlas is only a large sample of a series of window types, it does not indicate the load that can be withstood according to the construction of the figure, so it cannot be used as the basis for production, installation and acceptance. For different series of doors and windows, the strength and deflection must be checked or tested according to the most unfavorable principle of the force state. 2. The strength and rigidity of the floor and door are generally insufficient, and the main force column (beam) should be strengthened. 3. When the height of the outer door and window of the high-rise building is ≥30M, it shall be implemented in accordance with GB50057 “Code for lightning protection design of buildingsâ€. Second, the material selection 1, aluminum alloy profiles must meet the requirements of GB/T5237-2000 "aluminum alloy building profiles" 2. The selection and configuration of hardware accessories is one of the important factors to ensure the quality of doors and windows. Even the high-performance window type must be guaranteed by the selection and configuration of high-quality accessories. 3. The pulleys, tops, anti-drop seals and lower seal blocks of sliding doors and windows are the most important accessories to ensure the quality of sliding doors and windows. The pulley is the key to whether the door and window are open and closed smoothly. Rolling bearing nylon wheel should be used. The anti-drop sealer is a safety guarantee for preventing the sash from falling off and has a sealing function between the hook and the upper slide. ABS plastic and EPDM rubber should be used. The lower sealing block acts as a sealing between the hook and the glide path, and can effectively prevent the occurrence of splashing under the action of fluctuating loads. EPDM rubber should be used. The top is the seal of the window sash and the window frame, which determines the airtightness of the door and window. The common rayon will curl and lose the sealing effect when it meets the water. Siliconized tops must be used. 4. The hinges of the doors and windows (or the friction hinges of the sliding windows), the sealing strips between the handles and the frame fans are the most important accessories to ensure the quality of the doors and windows. The bearing capacity of the hinge (or the friction hinge of the sliding window) is the key to the safety of the door and window and whether the opening and closing is smooth. The bearing capacity of the hinge is stronger than the friction hinge, so the hinge can make a larger sash. For use, the friction hinge is only suitable for smaller or upper hanging windows. The handle is related to the important parts of door and window safety and sealing performance. The common handle is only suitable for use on sashes with small division and load. European multi-point handle is suitable for sashes with large division and load. The sealing strip between the frame fans is the guarantee of the airtightness and watertightness of the sliding door and window. The sealing effectiveness of the original PVC strip is about 5 years, and the recycled PVC strip does not have the effectiveness of sealing. It is desirable to use a rubber having good weather resistance such as EPDM. 5, the type, specifications and performance of hardware accessories should comply with the relevant provisions of the current national standards. 6. The structural adhesive and weather resistant adhesive used in the hidden frame window should be tested for compatibility with the profile and glass before use. Third, processing production 1. The processing of aluminum doors and windows should be carried out in the factory and must not be made at the construction site. 2. The drainage hole on the slide window of the sliding window should follow the principle of the outer fan hole and the outer fan inner hole to ensure the sealing performance of the door and window, especially the sliding window with the horizontal horizontal bar facing horizontally. 3. Before assembling aluminum doors and windows, the end processing burrs should be removed. The end joints and the joints of the profiles must be sealed with waterproof glue to prevent the structure from seeping. 4. The structure assembly assembly of the hidden frame window must be made and maintained in the clean room. Solvents, oil stains and other contaminants on the bonding surface of glass and aluminum frame must be removed with solvent; clean clean wipes should be replaced for each component or piece of glass; solvent should be poured onto the cloth, and the cloth is strictly prohibited from contacting the solvent bottle. mouth. The glue injection must be full, no air bubbles or leaks should occur, and the surface of the glue joint should be smooth and smooth; the residual glue of the glue joint should not be reused. Acid Core Soldering Wire,Soldering Copper Acid Core,Solder Acid Nickle Plated,Environmentally Welding Copper Wire NINGBO XIHAN TIN SOLDER CO.,LTD. , https://www.soldertop.com