A. There are various types of screens, but in the final analysis, there are three main types:
Invisible screen window, rolling screen window and traditional single screen window have different prices, and the differences in structure and screen window will also affect the prices.
B, the choice of screen window should first look at the screen window. This kind of yarn is made in China and imported. Most of the imported screens are made of chemical fiber, and those made in China are
glass
Fibers, some of which are made of plastic.
Imported screen windows can withstand tens of thousands of times of push-pull friction without deformation, while domestic glass fiber can only withstand thousands of times, while plastic screen windows are prone to thermal expansion and cold contraction, and the deformation probability is very high, so choose imported screen windows appropriately.
Look at the window screen and observe whether the eye holes are uniform, such as whether the shape is neat and whether the yarn thickness is uniform; Finally, touch the window screen with your hand, and it feels slightly scratched, like the quality of ironing is better, and the glass fiber window screen made in China is generally soft.
C, the structure of the screen window is also one of the important factors that determine the price level.
The profile of screen window is divided into aluminum alloy and plastic steel. The so-called plastic steel is actually a PVC profile, which is easy to deform in the sun and has a short service life. I suggest you choose aluminum alloy screen window. The profiles of good aluminum alloy screens are all above 0.7 mm, so you can press them by hand to feel the hardness of the profiles. Finally, the bearings of the screen window are also imported and made in China. It is recommended to choose the fully enclosed silent bearings imported.
Because domestic open bearings are easy to get dust, which affects the operation.
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Pay attention to the following points when buying:
1. The quality of window screen depends on whether its mesh is uniform or not. For example, the high-quality glass fiber anti-mosquito yarn imported from the United States has 16× 18 meshes per square inch (25.4 square centimeters), and the meshes are slightly rectangular, with neat meshes and no size; In addition, see whether the yarn thickness is uniform, thick or thin.
Touch the window screen with your hand, and it feels quite scraped, like it is scalded, and the quality is good; However, the glass fiber window screen made in China is relatively soft and will not collapse.
The cost per square meter of domestic glass fiber window screen is only about 3 yuan, 2 yuan, while the imported high-quality glass fiber window screen costs 12 yuan to 13 yuan, so it is necessary to prevent inferior quality.
2. Structure
The structure of the screen window is also an important point of its price difference.
The shutter screen window can be opened for easy use. But in addition to opening freely, its core is good sealing performance. It is completely closed when it is closed, and there can be no gaps, otherwise it is useless for mosquitoes to get in.
Good rolling screen window, the screen window is rolled up with nylon wire, and the guide rail is equipped with a positioning rod. Should be free to open, seal and resist strong winds.
However, the shutter that cuts corners often saves a process. The tops are placed in the guide rails on both sides, and the screens are directly inserted. When the wind blows, the screen window is blown away, and natural mosquitoes enter through the gap, which does not play the role of releasing mosquitoes.
So when you buy it, you should pay attention to whether the screen will fall off if you pull it.
3. Equipment
The so-called devices are mainly on-demand devices.
There is a box at one end of the shutter screen. When mosquito prevention is needed, gently pull the screen window to the end, snap it into the beads, and the screen window is completely sealed. Pull up the window screen, and the window screen will be involved in the window box. If there is a stop device, the screen window will stop there to avoid being completely closed in the window box. It is also convenient to climb up and pull it down with a stool!
Also note that if the screen window is installed in the outdoor glass window, the parts of the self-locking device should be made of aluminum alloy.
4. Borders
The frame of the roller shutter screen window is made of plastic-sprayed aluminum alloy, which is called colored aluminum. Generally, there are many colors to choose from, and you can choose the same color as your home window.
The quality of aluminum alloy frame depends on its thickness, which is1.2 mm. If the frame profile is not in place, it will be deformed in five or six months, and then it will be inconvenient to open it.