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Door and window profiles are a kind of building doors and windows commonly used in our families. Door and window profiles occupy half of the market. Plastic steel doors and windows have become a standard installation configuration in many communities and buildings. However, is the quality of the door and window profiles qualified, and what aspects should be checked during acceptance? let me tell you!
First, the quality of the profile of the door and window profiles
The appearance of the outline should be observed. The color should be blue and white, not white as people usually think. Pay attention to whether the colors of the frame and window sashes that make up the doors and windows are the same, whether the appearance is uniform, and whether the cavity distribution is reasonable. Calcium carbonate is usually added to the formula of plastic steel door and window profiles. In order to reduce costs, some manufacturers add too much to become calcified plastic. The surface of doors and windows made of this plastic lacks luster and is slightly rough. Hard and brittle, it looks rough like a stone. Ordinary plastic steel doors and windows are usually shiny and tough.
2. Steel bars for door and window profiles
According to national standards, the wind pressure resistance of door and window profiles has different requirements. The frame of plastic steel doors and windows and the inner cavity of the fan need to be equipped with steel bars. According to the height, there are three kinds of steel bars: 1.2mm, 1.5mm and 2.0mm. To ensure the robustness and service life of the product. In order to reduce costs, some manufacturers do not install or install steel bars that do not meet the requirements.
Three, check the surface of doors and windows
The surface is neat and clean. This is the most superficial item in the acceptance criteria for installation of door and window profiles. There should be no scratches, damages and corners on the surface of plastic steel doors and windows. During installation, check whether the door and window glass is opened, welded or damaged, whether the door and window are closed, closed tightly or leaked.
Fourth, the gap and sealing of doors and windows
Check whether the fit gap between various profiles is tight, whether the cuts of the mating parts are uniform, and the height difference of the overlapping parts of the profiles, etc. Generally, for plastic-steel doors, the main consideration is the gap between the door frame and the window sash, the edge of the door slats and the door panel, the joints of various profiles of the shutters, the sealing strips, etc.; the gap between the door panels should also be considered; the two doors are closing Whether it transmits light afterwards.
Similarly, for plastic-steel windows, in addition to the assembly gap of the various profiles to be assembled, it is also important to ensure the uniformity and firmness of the sealing strip. The interface gap should not be greater than 1mm, reflecting the sealing performance of the window. Plastic steel doors are usually used as inner doors of buildings and do not have high requirements for sealing. The smaller the gap value at the connection of various profiles, the tighter the fit, and the finer the assembly process, reflecting the assembly level and accuracy of assembly tools.
Five, check whether steel is added inside the doors and windows
When closing the house, you can use magnets to check whether plastic steel doors and windows are added with steel, whether there are anti-collision blocks under all sliding doors and windows, and whether the length of the anti-collision blocks is appropriate. -The collision block is enough.
Six, check whether it is safety glass
When checking the car window glass, be sure to check whether safety glass is used, mainly to see whether there is a 3C mark on the glass. Be aware that safety glass must be used in some places, if it is on the 7th floor and above. Safety glass must be installed on the windows, and safety glass must be used for glass with an area larger than 1.5 square meters. In addition, safety glass must be used for balcony guardrail glass. These are directly related to the safety of occupancy, let alone careless.
Seven, check the error value
When closing the house, pay attention to check whether the installation error of plastic steel doors and windows meets the standard. Ensure that the window frame is horizontal and vertical, and the height is the same. Usually the diagonal length is within 2m, and the error is less than 3mm; if the diagonal length is greater than 2m, the error is less than 5mm. If the window height is within 2m, the verticality error should be less than 2mm; if the window height is greater than 2m, the error should be less than 3mm.
8. Check for water seepage
Inspection and victory of plastic steel door
