the installation technology of doors and windows is particularly important. The acceptance work of aluminum alloy doors and windows is mainly through appearance inspection, frame inspection, lock inspection and opening inspection. Let's learn with the little craftsman!
I. Inspection of aluminum alloy door leaf and Casement
the surface quality of aluminum alloy doors and windows directly affects the decorative effect of the whole wall after installation. The appearance inspection of aluminum alloy doors and windows includes whether there are cracks on the surface, deformation and installation inspection of window rubber. The following are the specific operations of the inspection:
1. Appearance inspection
see whether the gloss and surface of doors and windows are obviously uneven in color. Then measure the size of the doors and windows with a ruler to check whether there is deformation and see if there are scratches.
2. Sealing strip inspection
the contact between the sealing strip and the glass and glazing rebate should be flat, and no curling or groove should be allowed. The layering with sealing strip must be tightly attached to the glass, and there should be no obvious gap at the joint between the layering and the profile, the joint gap should be less than or equal to 1mm.
II. Inspection of aluminum alloy door and window frame
the installation quality of door and window frame directly affects the firmness of the whole door and window. The inspection of door and window frame can be checked from its firmness, smoothness and tightness.
1. Border vertical flatness check
check the verticality range of the door and window frame with vertical measuring scale. Generally, the allowable deviation of the vertical and lateral verticality of the door and window frame is 2.5mm, and the allowable horizontal deviation of the horizontal frame of the door and window is 2mm, the allowable deviation of horizontal frame height of doors and windows is 5mm, and the allowable deviation of vertical deviation from center of doors and windows is 5mm.
2. Strict density inspection of connection with wall
check whether the joints between the door and window frame and the wall are tight. The edge of the door and window frame can be checked with a combination of reflector and extension tube.
III. Aluminum alloy door and window lock inspection
lock is related to the safety of the home. When checking the lock, we should pay attention to whether the installation is firm and whether the key rotates freely.
1. Lock installation inspection
check lock. First check whether the installation position of lock is correct and whether it is installed in reverse mode. Check whether the installation on both sides of the lock corresponds and whether there is any dislocation. Then shake lock with your hands to see if there is any loose phenomenon.
2. Lock usage check
check the flexibility of door lock activity and whether the anti-lock and unlocking actions can be carried out smoothly; Then check the window, close the window lock, push the moving window by hand, and check whether the window can be locked or not.
IV. Inspection of aluminum alloy doors and windows
at the last step, check the opening and use of doors and windows, including whether the opening and closing of doors and windows are stable and whether there is abnormal shaking after the doors and windows are locked.
Finally
shake the doors and windows back and forth by hand, check whether the doors and windows are in normal use, and feel whether the doors and windows are under abnormal resistance and sound during the shaking process; Then change the strength of the window and check whether the doors and windows can withstand different forces. Close the doors and windows and check whether the door and window fan are accurate with the frame. Generally, the gap between the doors and windows and the frame should not exceed 2mm.
