ã€China Aluminum Industry Network】 Jin Jiuyin 10 is the peak sales season for the building materials industry. As in previous years, reporters found that in the market of doors and windows, closer to the doors and windows enterprises have begun to launch a variety of promotional packages for the sales season. In addition, with the approaching marriage wave in October, the new house decoration tide has also increased the market demand for door and window products. Therefore, under the dual influence of the price reduction of door and window products and the gradual increase of actual demand for products, the overall sales of door and window products on the market have been greatly improved.
However, after the reporter visited the market, he discovered that in the face of a dazzling array of doors and windows products, many consumers expressed that they did not understand how to pick, and that complaints caused by the deformation of doors and windows and the lack of push-pulls after purchase were commonplace. For this reason, the reporter specially targeted the aluminum alloy door and window products that are more popular among consumers in the market of doors and windows, and specifically interviewed relevant persons in charge of the Chinese high-end aluminum alloy door and window founder Piaget's doors and windows that have a good reputation in the market. In the interview, Li Yihong, the chairman of the Yamen window, explained to buyers the four criteria that should be followed for the purchase of high-quality aluminum doors.
First, the product surface quality affects the appearance
Li Yan believes that the quality of doors and windows will directly affect the overall quality of the installation. Therefore, when purchasing, you should pay attention to the following aspects to check the quality of doors and windows:
1. There should be no obvious damage to the decorative surface of doors and windows, and the protective film on the surface of doors and windows should not have scratches and scratches.
2. There should be no obvious color difference on the colored surface of the adjacent member on the door and window.
3. There should be no aluminum chips, burrs, oil spots or other stains on the surfaces of doors and windows; there should be no spillover adhesive at the assembly joints; there should not be too many nail holes exposed to affect the appearance. In this regard, Li Dong also made a simple analysis of the Paiya doors and windows products, and sent Yamen doors and windows to the colors of rosewood and local tyrants. They were bright and bright, giving people a feeling of freshness and elegance. The main raw materials of the products were imported materials, and their formulas were exquisite. , Equipped with imported extruders and molds, the produced profiles are fine, uniform, and have a high degree of finish.
Second, the smaller the product size deviation, the better
Pai Yamen told reporters that the aluminum doors and windows products will have a size deviation of the qualified range, with a smaller size deviation is better. Outside the range, it is a non-qualified product. For example, a standard stipulates that the width and height of the slot of the door and window frame should be ≤2000mm, the allowable deviation range is ±1.0mm, and the verticality of the front and side of the frame of the window/window frame (including the piling material) should be ≤2000mm. The range is ≤2.0mm, and so on.
Third, the material needs to meet the five requirements
According to Li Dong, aluminum alloy door and window products mainly have five requirements on the material used:
1. Thickness: Aluminum alloy sliding doors are available in 75 series, 88 series, 103 series, and 120 series (series numbers indicate the thickness of the door frame thickness in millimeters). The aluminum alloy sliding door in the house can use 88 series. The sliding window of aluminum alloy is selected from 50 series, 55 series, 70 series, 76 series, 118 series, 130 series, etc. It should be based on the size of the window hole and the local wind pressure value. Among them, aluminum alloy sliding windows used as closed balconies (balcony renderings) should not be smaller than the 55 series.
2. Strength: Tensile strength shall be 157 Newtons per square meter and the yield strength shall be 108 Newtons per square millimeter. When you purchase, you can use the hand to bend the profile moderately, and then you can rejuvenate it.
3. Flatness: When inspecting the surface of the aluminum alloy profile, there should be no depression or bulging.
4. Gloss: aluminum alloy doors and windows to avoid the purchase of surface bubbles (white spots) and ash (black spots), as well as cracks, burrs, peeling and other obvious defects in the profile.
5. Degree of oxidation: The thickness of the oxide film should reach 10 microns. When you purchase, you can lightly stroke the surface of the profile to see if the oxide film on the surface can be wiped off.
Fourth, aluminum alloy doors and windows are firmly connected components
In terms of components, according to Li Dong, aluminum alloy doors and windows of the components should be firmly connected, send Yamen windows in this area is also more advantageous.
Paiya doors and windows are made of multi-cavity structure, with separate drainage cavity and reinforced cavity, making the assembly of steel liner and the processing of drainage trough independent, which improves the service life of the profile. In addition, the door and window drains are machined using the method of misalignment between inside and outside, which prevents cold air and dust from entering, and allows the water to drain smoothly even when the wind pressure is high. In addition, there are two special structures inside and outside the flat window frame and the fan, and special material sealing strips are sealed to increase the watertightness and airtightness of the doors and windows.
In addition, the general manager of the Pia Window and Doors reminds consumers that when purchasing goods, it is better to use the products of regular aluminum alloy door and window manufacturers. At present, there are many self-employed aluminum alloy doors and windows, but they do not understand the structural characteristics and performance of aluminum alloy doors and windows, in order to reduce costs, often have to cut corners, shoddy stuff, so the hidden dangers of the product is generally not suitable .
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