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Problems needing attention in engineering aluminum alloy doors and windows
01-14:00

1. Firstly, the aluminum alloy doors and windows entering the site shall be inspected and accepted. The specifications, models, varieties, grades and quality must meet the design and national gb8478-8481 product standards. Each batch of aluminum alloy doors and windows accessories must have the factory certificate and the acceptance record of the ex factory products.

2. The installation work should be carried out after the indoor painting and outdoor painting leveling and scraping are completed.

3. The gap between the aluminum alloy door and window frame and the wall shall meet the specification requirements.

4. Firstly, pop up the center line of the door and window opening, determine the width of the opening from the center line, pop up the same elevation horizontal line on both sides of the opening, and the horizontal line has the same elevation in the same floor, and the vertical line should also be on the same vertical line, and the installation position should be in the middle of the wall.

5. According to the design opening direction and snapping line position, fix the temporary wooden wedge (and pay attention to the floor material of the room where the door is located) and repeatedly correct its perpendicularity and levelness, and then fix the connector on the structure with the distance between the continuous pieces less than or equal to 500mm, and then check it again. After meeting the requirements, paste the protective tape It is strictly forbidden to use scaffold board or other heavy objects.

6. Joint filling: cement mortar shall be used as filling material. The contact surface between mortar and frame shall be painted with two degree asphalt phenolic varnish, and then EPDM rubber strip soft tape shall be pasted on the outside of the frame. The indoor and outdoor secondary painting (decoration) of window opening wall shall not exceed 3mm of the outer frame edge of aluminum alloy doors and windows.

7. The installation of aluminum alloy door and window sash shall be carried out after the indoor and outdoor painting works are basically completed. The sliding and pulling window sash shall be installed inside first and then the outside. Rotate the adjusting screw to adjust the distance between the pulley and the lower frame, so that the wool compression amount is 1-2mm. All pulleys on the window shall be adjusted so that the bottom wool can be compressed evenly and the main support of the fan is parallel to the frame. The fixed fan should be installed on the outdoor side, and it should be fixed firmly without falling off to ensure the safety of use.

8. For the construction of sealant, the oil, rust and dust on the surface of the adhesive shall be removed, and the surface shall be kept dry. After the construction, the surface of the sealant shall be flat and the concave convex shall not exceed 1 mm.

9. After the painting is completed, tear off the protective adhesive tape. If the plastic adhesive paper leaves some glue marks on the profile surface, it is advisable to clean up with burnt water.

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