Doors and windows quality is more and more important.
The quality of profiled steel doors and windows should be observed. The color of the frame and fan profile of the door and window should be the same, the appearance is uniform, the cavity distribution is reasonable, the normal plastic steel doors and windows, the surface is usually shiny and very tough.
The gap between the door and the window and the seal to see whether the matching gap between the various profiles is tight, whether the incision is flush, the height difference of the profile overlap, and so on. Generally, for plastic steel doors, the main part to consider is the door frame, the gap between the fans, the door panel bead and the edge of the door panel, the various profile joints of the blinds, the sealing strip, etc. If the door panel is assembled, it is also necessary to consider the door panel. The gap is the transparency of the two doors of the swing door after closing. Similarly, for plastic steel windows, in addition to the assembly clearance of various profiles to be assembled, it is also important whether the sealing strip is uniform and firm. The interface gap should be no more than 1 mm, which reflects the sealing performance of the window.
The welding of plastic steel doors and windows depends on whether the welding place is flush, whether there are cracks, whether the inner and outer corner seams are clean and beautiful. The diagonal dimension of the plastic steel doors and windows is measured by the box ruler, and the diagonal dimension difference should be no more than 3mm. The smaller the diagonal difference, the finer the process and the ease of installation.
The quality of hardware and hardware of plastic steel doors and windows
The quality of hardware and hardware of plastic steel doors and windows also has a certain impact on the life of doors and windows. The hardware used should look thick, and the surface gloss should be good. The protective layer is dense, no scratches, the most important point. It should be flexible to open.
The reinforced steel of plastic steel doors and windows has different requirements on the wind pressure resistance of plastic steel doors and windows according to national standards. The frame of the steel doors and windows and the inner cavity of the fan need to be equipped with reinforced steel. According to the height, there are three thicknesses of 1.2mm, 1.5mm and 2.0mm. Reinforced steel to ensure product robustness and longevity. In order to reduce costs, some manufacturers do not install or install reinforced steel that does not meet the requirements. Customers should pay special attention to the purchase of products. Generally, the inspection methods are as follows: 1. The weight method is used to estimate the weight of the door and window. The weight of the door and window with the reinforced steel is heavy, and vice versa. 2. Use a magnet on the frame and fan of the door and window. If the magnet is adsorbed, there will be a reinforced steel in the profile, and vice versa. 3. Observe whether there are screws for fastening steel on the frame of the door and window, and whether the steel is equipped with reinforced steel.