With more and more home decoration, the quality of doors and windows can also be checked by yourself. Xiaobian introduces you to several simple methods of quality inspection of doors and windows.

1. Window surface: the window frame should be clean, flat and smooth, without scratches and bumps on the large surface, and no welding and fracture of the profiles.

2. Hardware: The hardware should be complete, in the correct position, firmly installed, flexible in use, and able to achieve their respective functions.

3. Glass sealing strip: The contact between the sealing strip and the glass and the glass notch should be smooth, and no curling or slotting should be allowed.

4. Sealing quality: When the doors and windows are half 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. Glass: The glass should be flat and firmly installed, and there should be no looseness. The single-layer glass should not directly contact the profile. The inner and outer surfaces of the double-layer glass should be clean. There should be no dust and moisture in the glass interlayer, and the spacer should not be lifted.

6. Pressure strip: The pressure strip with the sealing strip must be in close contact with the glass. There should be no obvious gap between the pressure strip and the profile, and the joint gap should be less than or equal to 1 mm.

7. Stitching material: The stitching material should be tightly connected with the window frame and sealed with caulking paste without shaking. The distance between the screws should be less than or equal to 600 mm, and both ends of the lining reinforced steel should be firmly fixed to the hole.

8. Switch parts: casement, sliding or rotating windows should be closed tightly.

9. Frame and wall connection: the window frame should be horizontal and vertical, and the height should be consistent. The spacing of the fixing pieces should be less than or equal to 600 mm. .

10. Drainage holes: The drainage holes should be in the correct position and should be unobstructed at the same time.

At present, the quality of windows produced on the market is mixed. How to identify its pros and cons? It can be observed mainly from three aspects, namely profiles, hardware accessories, and processing technology.

  1. From the aspect of profiles, the surface finish of the profiles, the rationality of the cavity structure, the wall thickness of the profiles, and the rationality of the profiles are all criteria to measure the pros and cons of the profiles. At present, the profiles used in Shanghai's windows have some famous brand products produced by designated manufacturers, which basically adopt foreign patented formulas, and the quality is stable and reliable.

  2. From the perspective of hardware accessories, the identification of its pros and cons mainly depends on its flexibility, sealing, wear resistance and corrosion resistance. The accessories mainly consider the lining steel placed in the profile cavity. A good lining steel should be galvanized A3 steel with a wall thickness of at least 1.2 mm. Now some production booths often do tricks on the lining steel, in order to reduce prices, attract business, and deceive consumers.

3. In terms of processing technology, its quality mainly depends on the appearance quality of doors and windows, the accuracy of processing dimensions, the level of angular strength, and the rationality of the use of hardware accessories.