ã€China Aluminum Network】 After nearly 30 years of development, aluminum alloy doors and windows (doors and windows decoration renderings) have gradually replaced the plastic doors and windows, becoming the leading product of doors and windows. It is still far-fetched to say that aluminum alloy doors and windows are "high-end products." Because of its strong metal characteristics, there is still a large gap between high-end furniture products and humans. With the preference of “woodâ€, aluminum-wood composite doors and windows gradually become the new darling of high-end doors and windows. Today, villas (villa decoration renderings), hotels (hotel decoration renderings), high-end club (club decoration renderings) and other occasions can see aluminum and wood composite doors and windows. So, how to buy high-end aluminum alloy doors and windows?
First, the product surface quality affects the appearance
The quality of doors and windows surface quality will directly affect the overall installation effect, so you should pay attention to the following aspects when you choose to check the quality of doors and windows surface:
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
Aluminum alloy door and window products will all have a qualified range of dimensional deviation. It is better to have a smaller size deviation. 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
Aluminum alloy door and window products mainly have five requirements on the material used in materials:
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 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, aluminum alloy doors and windows of the components should be firmly connected, pay Yamen windows in this area is also more advantageous.
Wood Activated Carbon is a black powder, granular or pellet or amorphous with porous carbon. The main component is carbon, which also contains small amounts of oxygen, hydrogen, sulfur, nitrogen, and chlorine. It is mainly made of wood, fruit shells, coal and other high-temperature activation. Carbon is the most stable element in nature. Activated Carbon also has this feature. Activated carbon pore structure is advanced, with a large surface area (500 ~ 1000 m2/g), even higher, has a strong physical adsorption properties, can adsorb gas, liquid or colloidal solids; for gases, liquids, adsorbed substances The quality can be close to the quality of the activated carbon itself. Its adsorption is selective, non-polar substances are more easily adsorbed than polar substances. In the same series of substances, substances with higher boiling points are more easily adsorbed, and the pressure is higher, the temperature is lower, the concentration is greater, and the amount of adsorption is greater. Conversely, decompression and warming are favorable for desorption of gases.
Wood Activated Carbon
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