Plastic steel doors and windows are now a kind of popular doors and windows, which are widely used in home life. We know the importance of the quality of doors and windows, and the operation that needs to be accepted after installation is essential, so how to check the installation quality of plastic steel doors and windows? What are the precautions for acceptance of plastic steel doors and windows?
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precautions for acceptance of plastic steel doors and windows
1. Profile quality of plastic steel doors and windows
the appearance of the profile should be observed. The color should be bluish-white instead of white, which is usually considered by people. Pay attention to whether the color of the profile Japanese fan of the frame of the door and window is consistent, whether the appearance is uniform, and whether the cavity distribution is reasonable. Plastic steel door calcium carbonate is usually added to the formula of window profiles as the filling material, while some manufacturers reduce costs. If too much is added, it will become a calcified plastic. This kind of door and window surface lacks gloss, it is slightly rough, hard and crisp, and looks as rough as stones, but the normal plastic steel door window has a shiny surface and is also very tough.
2. Clearance and sealing of doors and windows
check whether the matching gap between various profiles is tight, whether the cutting at the matching position is flush, and whether the profile overlap is uneven, etc. Generally, about plastic steel door, the gap between door frames and fans is mainly considered, the door panel layering and the edge of the door panel, the joints of various profiles of the blinds, sealing strips, etc.; Such as the assembled door panel, the gap between the door panels should also be considered; For vertical hinged door, two doors should be exposed after closing. Similarly, with regard to plastic-steel windows, in addition to considering the gaps of various Profile Devices assembled, it is also important whether the sealing strip is uniform and firm. The Interface gap should be no more than 1mm, which reflects the sealing function of the window. Plastic steel door generally do interior door of the building, the sealing requirements are not so high. All kinds of void values have rules in national standards, but for customers, the smaller the void value at the junction of various profiles, the tighter the cooperation, and the deeper the assembly process, this reflects the accuracy of assembling things slowly.
3. Welding of plastic steel doors and windows
check whether the welding place is flat, whether there are cracks, and whether the angle joints inside and outside are clean and beautiful. Use tape measure to measure the diagonal scale of plastic steel doors and windows. The diagonal scale difference should be no more than 3mm, the more diagonal difference appears, the finer the process is, which is also beneficial to the device.
4. Hardware of plastic steel doors and windows
the quality of hardware also has a certain influence on the longevity of doors and windows. The hardware used should look solid, have good gloss on the appearance, have fine protective layer, and have no scratch phenomenon. The most important thing is that the opening should be sensitive.
5. Reinforced steel for plastic steel doors and windows
according to the national standard, there are different requirements for the wind pressure resistance of plastic steel doors and windows. The inner cavity of the frame and fan of plastic steel doors and windows needs to be assembled with reinforced steel, and there are 1.2mm, 1.5mm, 2.0mm three thickness reinforced steel to ensure the firmness and service life of the product.
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how to check the quality of plastic steel doors and windows
1. Look at the surface of the window: the window frame should be clean, smooth, smooth, with no scratches or bumps on the large surface and no open welding fracture on the profile.
2. Look at the hardware: the hardware should be complete, the position is correct, the installation is firm, the use is flexible, and the use function can be achieved.
3. Look at the glass sealing strip: the contact between the sealing strip and the glass and glazing rebate should be smooth, and no curling or grooving should be allowed.
4. Look at the 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. Look at the glass: The glass should be flat and firmly installed, and there should be no looseness. Single-layer glass should not directly contact the profile. The inner and outer surfaces of double-layer glass should be clean, and there should be no dust or moisture in the glass interlayer, barrier cannot be cocked.
6. Look at the layering: the layering with sealing strip must be tightly attached to the glass. There should be no obvious gap at the joint between the layering and the profile, and the joint gap should be less than or equal to 1mm. Push-pull type.
7. Look at the splicing materials: the splicing materials should be closely connected with the window frame, and sealed with caulking paste at the same time, without disturbance. The screw spacing should be less than or equal to 600mm, both ends of lined reinforced steel should be fixed firmly with the opening.
8. Look at the switch parts: the flat opening, sliding or rotating window should be closed tightly.
9. Look at the connection between the frame and the Wall: The window frame should be horizontal, flat and vertical, consistent in height, the spacing between fixed pieces should be less than or equal to 600mm, and the frame and the wall should be firmly connected, the gap should be filled with elastic material and filled with full, and the surface seam paste should be sealed without cracks.
10. Look at the drainage hole: the position of the drainage hole should be correct, and it should be smooth at the same time.
