1、 Preparation for installation of aluminum alloy doors and windows
The key points of anti-seepage of aluminum alloy doors and windows are as follows: production, installation, inspection and acceptance, civil engineering cooperation and no leakage. In the anti-seepage scheme of aluminum alloy doors and windows, the selection of materials is also specified: aluminum alloy profiles are selected from Wuxi Jinxiu company, sliding doors are selected from 828 series profiles (to increase wind resistance bearing capacity and increase light opening), and 50 series profiles are selected for swing doors and windows.
The foaming agent is batima product. Dow Corning neutral silica gel was selected as silica gel.
During the production of aluminum alloy doors and windows, the actual hole size and painting size shall be inspected on the spot, and the fabrication size shall be determined under the premise of the specification. The anti-seepage acceptance of aluminum alloy doors and windows shall be carried out according to the specifications.
Before installation, the aluminum alloy door and window openings shall be inspected one by one, and the written data shall be provided to the civil painting team. The size of the hole painting and the gap of the aluminum alloy door and window frame shall be controlled at about 15mm. The anti-seepage measures of aluminum alloy doors and windows are as follows: after the external wall is finished with tile layout, determine the horizontal line, vertical line and inlet and outlet line of aluminum alloy door and window according to the layout of facing brick, and then check the size of the opening.
2、 Installation of aluminum alloy doors and windows
The construction contents of aluminum alloy door and window frame installation include: 1. Check the horizontal line of aluminum alloy door and window frame, draw vertical line, in and out line, window frame, hole alignment and hole cleaning. 2. Fix the window frame with inclined wooden wedge, correct, fix the iron foot by shooting nails, and check. 3. Seal iron feet with mortar or fine concrete. 4. After the iron foot mortar is dried, remove the wooden wedge and powder the outdoor hole. 5. Injection of foaming agent, outdoor application of the first degree of silica gel. 6. The window frame shall be sealed with mortar, compacted and grouted. 7. The inner side of the door and window frame is coated with silica gel, and the second degree of silica gel is applied outdoors. 8. Install the frame fan. After installation, concealed acceptance of connectors and foaming agent shall be carried out. The perpendicularity and diagonal of doors and windows are measured to make the installation quality meet the requirements.
Check and accept the door and window according to the following procedures: check and accept the door and window, door and window frame, silica gel, aluminum alloy, door and window installation before installation, silica gel, water spray, installation acceptance of door and window Test. After all doors and windows are installed, spray test should be carried out to check the leakage of doors and windows.
Key aluminum alloy doors and windows anti-seepage process construction technology. The construction of foaming agent and silica gel is the key point.
After the installation of the outer frame of aluminum doors and windows, in order to prevent the aluminum alloy doors and windows from seepage prevention, the installation personnel of aluminum doors and windows began to inject foaming agent into the gaps around the frame body from the outside to the room. Before operation, the garbage, dust and cement slag blocks on both sides of the civil engineering portal surface and both sides were cleaned, and the dust was blown away with leather tigers. (if the gap around the frame is more than 15mm, the mortar should be powdered first to make the gap around the frame less than 15mm). When applying the foaming agent, press it with your hand after 10 minutes of blowing agent on the outside (level with the outer frame), and apply the first degree of silica gel on the outdoor side. The inner side of the door and window frame is coated with silica gel, and the second degree of silica gel is applied outdoors. Pay attention to the surrounding protection (cover the window frame and wall with adhesive tape, and tear it off when the silica gel surface is dry). The joint is straight, smooth and curved.
3、 Civil engineering cooperation construction content
In order to better install doors and windows, we must do a good job in the coordination of aluminum alloy doors and windows with civil construction.