Introduction Manual of plastic steel doors and win

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Introduction Manual of plastic steel doors and windows

>& gt;& gt; Five tips to make toxic plastic steel doors and windows have no way to hide

first, a simple method for users to identify the quality of plastic steel doors and windows

u-pvc plastic steel doors and windows is a new chemical building material. It is the fourth generation of energy-saving doors and windows after wooden doors and windows, steel doors and windows, and aluminum doors and windows. It is a high-quality energy-saving product recommended by the Ministry of construction. Plastic steel doors and windows are made of plastic profiles by cutting, installing reinforced steel, welding, and then installing sealing strips, wool tops, hardware and other accessories

because of its beautiful appearance, strong corrosion resistance, good water tightness and heat insulation, simple maintenance and other advantages, it is more and more favored by people. In recent years, the development momentum is extremely rapid, but too fast development is also easy to ignore many hidden problems. Moreover, there are good and bad people in the market, and there are all kinds of quality levels. General customers do not know enough about its performance, and they are not familiar with its performance without any testing tools, especially when they do not know how to identify the quality of plastic steel doors and windows. Sometimes they are inevitably deceived. For this reason, the company specially provides customers with some simple methods to identify the quality of plastic steel doors and windows for customers to refer to when purchasing products

1. The profile quality of plastic steel doors and windows

the appearance of the profile should be observed. The color should be cyan white, rather than white as usually thought. Pay attention to whether the color of the profile of the frame and the fan that make up the door and window is consistent, 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 as an additive material, and some manufacturers, in order to reduce costs, if the amount is too much, it will become calcified plastic. The surface of the doors and windows made of this plastic is lack of luster, slightly rough, hard and brittle, and looks like a rough feeling of stones. The surface of normal plastic steel doors and windows is usually shiny and very tough

2. The gap and sealing of doors and windows

see whether the fit gap between various profiles is tight, whether the cut at the fit is flush, the height difference at the overlap of profiles, etc. Generally, for plastic steel doors, the main parts to be considered are the gap between the door frame and leaves, the door panel batten and the edge of the door panel, the connection of various profiles of the shutter, the sealing strip, etc; If the door panel is assembled, the gap between the door panels should also be considered; Whether the two door leaves are transparent after being closed, etc. Similarly, for plastic steel windows, in addition to the assembly clearance of various profiles assembled, it is also important to consider whether the sealing strip is uniform and firm. The interface

clearance should not be greater than 1mm, which reflects the sealing performance of the window. Plastic steel doors are usually used as the inner doors of buildings, and the sealing requirements are not so high. Various gap values are specified in national standards, but for customers, the smaller the gap value at the connection of various profiles, the closer the fit, and the more exquisite the assembly process, which reflects the assembly level and the accuracy of assembly tools

3. The welding of plastic steel doors and windows

depends on whether the welding joint is flush, whether there are cracks, and whether the internal and external corner joints are clean and beautiful. Measure the diagonal dimension of plastic steel doors and windows with a box ruler, and the diagonal dimension difference should not be greater than 3mm. The smaller the diagonal difference is, the finer the process is, which is also conducive to installation

4. Hardware of plastic steel doors and windows

the quality of hardware also has a certain impact on the service life of doors and windows. The hardware used should look thick, with good surface gloss, dense protective layer, no scratches, and the most important thing is to open flexibly

5. Reinforced steel for plastic steel doors and windows

according to national standards, there are different requirements for the wind pressure resistance of plastic steel doors and windows. The inner cavity of the frame and leaf of plastic steel doors and windows needs to be equipped with reinforced steel. According to the height, there are three kinds of reinforced steel: 1.2mm, 1.5mm and 2.0mm, so as to ensure the firmness and service life of products. 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 when choosing products. The usual inspection methods are:

1) The weight method is used to estimate, that is, weigh the weight of doors and windows, and the weight of doors and windows equipped with reinforced steel is heavy, otherwise it is light

2). Put the magnet on the frame and leaf of the door and window. If the magnet is attached, there is reinforced steel in the profile, otherwise there is No

3). Observe whether there are screws fastening section steel on the frames and leaves of doors and windows, which can also prove whether reinforced section steel is assembled

in short, customers should be careful when choosing products, try to choose products from regular manufacturers, and conduct strict inspection to avoid being cheated

II. Precautions for purchasing plastic doors and windows:

do not buy cheap plastic steel doors and windows

pay attention to glass and hardware. The glass should be flat and free of water marks. Glass and plastic profiles are not in direct contact, and sealing strips are attached to the gap. The hardware is complete, in correct position, firmly installed and flexibly used

the surface of doors and windows should be smooth and flat without open welding and fracture. The sealing strip shall be flat, free of curling, grooving and odor. When the door and window are closed, there is no gap between the leaf and the frame

the four leaves of doors and windows are connected as a whole without screw connection

the sliding door and window can be opened and slid freely, with soft sound and no dust falling off

special steel lining is embedded in door and window frames and leaf profiles

the glass shall be flat and firmly installed, and the installed glass shall not directly contact the profile. Glass glue cannot be used. If it is a double glass flat layer, there should be no dust and moisture in the interlayer

the switch components are tightly closed and flexible

plastic steel doors and windows are processed and manufactured with professional equipment in the factory workshop, and cannot be manufactured on the construction site




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