ã€China Aluminum Network】 China's door and window market has experienced rapid development for more than ten years, and the types of doors and windows have become more and more complete. For composite doors and windows, aluminum doors, windows, aluminum doors and windows, and aluminum have now been formed. "Wood composite doors and windows" is the dominant market structure. "Aluminum wrapped wood", "wood-laminated aluminum" and "aluminum-wood composite" doors and windows are the names for the combination of aluminum and wood. Although the appearance is very similar, there is a big difference in the internal structure and performance indicators. Barbecue wire Grill Grate is made of high quality 304 stainless steel, never rusting and durable. BBQ Wire mesh does not have any coating or chemical ingredients, making food safer. Cooking Grid Shenzhen Lanejoy Technology Co.,LTD , https://www.szsmallcompressionspring.com
The concept and technology of aluminum-wood composite doors and windows of aluminum-wood composite doors and windows were introduced from Europe earlier. Since then, “aluminum-wrapped wood†and “wooden-clad aluminum†appearing on the domestic market have all been derived from this concept. Aluminum-wood composite doors and windows are widely used because they are relatively mature in Europe and the standard system is relatively perfect. The Hannsock door and window system in Germany earlier introduced the concepts and standards of “aluminum-wood composite†from Germany to the Chinese market and led the development of the industry.
From the descent, aluminum-wood composite doors and windows are developed from wooden windows. It still takes solid wood as the main body, and aluminum alloy profile compound is added on the outdoor side. The role of aluminum alloy profiles in addition to the protection of wood, more importantly, through the special combination of the two materials, so that the window structure strength increased to the strength of solid wood structure can not reach the mathematical and quantitative indicators. In Germany, the lower standard for aluminum-wood composite doors and windows is IV68+. Based on the introduction of new energy-saving standards in Germany, the standards for German aluminum-wood composite doors and windows have been raised to IV78+ and IV88+ at this stage.
The concept of aluminum-clad wooden doors and windows aluminum-clad wood is derived from aluminum-wood composites. It is a title of domestic door and window manufacturers for this type of combination. It is very similar in appearance to aluminum-wood composites, with solid wood as the main body and aluminum alloy as the auxiliary material. But the difference is the standard system and product structure, and even the entire chain of deep wood processing. With regard to aluminum-clad wooden doors and windows, there is currently no uniform standard in the country, so there are many different versions and standards of aluminum-clad wooden windows on the market, such as the 56 series and the 58 series. However, all of them use IV68+ as a technical reference to reduce the thickness of wood sections to save materials. It should be said that all of them are based on cost control, and therefore sacrifice in performance indexes and structural strength.
Wood-laminated aluminum doors and windows "wood-aluminum" is a variation of aluminum alloy windows. It is based on aluminum alloys, and is affixed to the inside of the room with wooden panels. In appearance, it is very similar to "aluminum packaged wood." However, from the system point of view, wood-laminated aluminum is evolved from aluminum alloy windows instead of wooden windows. Therefore, there is no pedigree and inheritance between "wood-aluminum" and "aluminum-clad wood". Compared with aluminum wrap wood, the "wood" in wood-laminated aluminum is a decorative part, which has almost no strength, and instead increases the load of the aluminum alloy section material as a frame fan material. In addition, if the board is not subjected to various deep processing, its common defects will still exist.
As the technical threshold of wood-laminated aluminum doors and windows is low and the technical difficulty is not high, many aluminum alloy manufacturers have invested in the manufacture of sticky aluminum doors and windows, borrowing features that are very similar to “aluminum packaged wood†in appearance, and even individual manufacturers are interested in misleading. Making ordinary consumers misunderstand, it is difficult to make a correct understanding and choice as their new profit growth point.
Experts believe that the chaotic market for doors and windows is confusing for consumers on the one hand, and headaches for “homogeneous†issues on the other hand. Therefore, accelerating the formulation of industry standards has become an urgent task. To clarify the industry chaos and regulate industry standards is to protect the industry and be responsible to the market.
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