How to check the material quality of aluminum alloy door and window materials
1, the window frame should be clean, smooth, smooth, large surface without scratches, bumps, no open welding profile fracture.
2. The hardware must be complete, the location is correct, the installation is firm, and the use is flexible.
3. The contact between the sealing strip and the glass and glass notch shall be smooth and shall not be curled or grooved.
4. When the doors and windows are partially closed, there is no obvious gap between the fan and the frame, and the sealing strip on the sealing surface should be in a compressed state.
5. The glass should be flat and securely installed. There should be no looseness. The single-layer glass must not be in direct contact with the profile. The inner and outer surfaces of the double-glazed glass are clean, free of dust and moisture, and the partition cannot be tilted.
6. The bead with sealing strip must be tightly attached to the glass. There should be no obvious gap between the fillet and profile joint. The joint gap should be less than or equal to 1MM.
7. The lining material should be closely connected with the window frame and sealed with caulking paste. It must not be shaken. The steel lined with reinforced steel should be firmly fixed at both ends of the lining.
8. The windows should be closed tightly.
9, drainage hole position should be correct, but also smooth.
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