How to choose soundproof window frame plastic steel or aluminum alloy

[China Aluminum Industry Network] The soundproof window industry has developed in China for decades. According to the previous summary, the soundproof window industry is mainly concentrated in the four major cities of North, Shanghai, Guangzhou and Shenzhen. The sound insulation window has many varieties and its sound insulation effect is also layered. What's not, for the consumers how to choose, what kind of soundproof window frames are more soundproof and more durable? First, the noise window frame selection of plastic frame: Before the window made of plastic steel profiles was considered to be energy-saving windows, thermal insulation windows, because of the low thermal conductivity of steel profiles. From a thermodynamic point of view, this view is inaccurate. We deliberately visited Europe and Germany. They have three generations of steel profiles. The windows made of the previous generation of plastic profiles are stupid and heavy and have large sections. The second generation of hollow steel insert steel plate, due to voids rust easily. The third generation is the co-extrusion of surface-treated steel plates and plastics. This is the real steel profile. The window made with this profile can really be called a plastic steel window. In the earlier period, more than 3,000 plug-in steel plastic profile lines that were eliminated at home were introduced. Doors and windows made of this profile can only be called plastic windows. Compared with aluminum profiles, steel profiles have obvious strength and other properties. The gap is only smaller in thermal conductivity than aluminum. At present, domestic soundproof windows are made of plastic steel profiles and are generally of the second generation. For sound insulation glass with high weight density, the bearing capacity is very limited. Therefore, window deformation often occurs in the after-sales process. Second, the soundproof window frame selection of aluminum alloy frame: Aluminum alloy profiles have special properties that other door and window materials do not have. They not only have high strength (some aluminum alloys can reach the strength of 45 steel), but also have light weight (1/3 of the weight of steel), good plasticity, and can be extruded. Into a variety of complex profile sections. Strong corrosion resistance without any pollution. Waste aluminum alloy profiles can be recycled and reused. In the world, 6063 aluminum alloy profiles have been used as door and window materials for many years. Although many windows made of various materials have challenged it for many years, and we want to replace it, there is no international material that can substitute aluminum alloy profiles for doors and windows. Of course, various materials are used for different purposes. Various types of doors and windows are produced according to different needs. This is the need for development. At present, the longer service life of the soundproof window industry is also the aluminum alloy frame. In the field of sound insulation windows, the aluminum alloy frame technology of the soundproof window of Jingmeijia is far ahead. 1, aluminum alloy varieties and performance improvements: previously used in the international 6063 profile, cooling production for the use of wind speed cooling (known as air-cooled quenching, T5 state), and now to solve the increase in the area of ​​doors and windows to improve the strength of aluminum alloy profiles, Can be quenched by water (T6 state), its tensile strength can be increased from 160Mpa to 205MPa 2, if the door and window strength requirements are higher, available aluminum alloy 6061T6 state. 6061T6 alloy tensile strength can reach 265Mpa. 3, aluminum alloy can replace stainless steel, aluminum alloy can be formulated nearly 100 kinds of alloys, its tensile strength, yield strength can exceed stainless steel, such as China's brand Lc4 aluminum alloy, internationally known as 7075T6 aluminum alloy, its tensile strength can be achieved 540-560Mpa, while the general stainless steel is 530Mpa. Aluminum alloy can not only meet the needs of doors and windows, but also meet the needs of aircraft, tanks, bulletproof, so that aluminum alloy has a strong vitality. 4, aluminum can be a variety of surface treatment of aluminum material has been anodized surface treatment a few years ago, only white and bronze can now get powder spray and fluorocarbon spray, you can get a variety of favorite colors make the building doors and windows colorful . Powder spray is afraid of the sun's ultraviolet radiation, easy to fade evenly, and the color of the sun's face and the shade's face will be different after several years. Generally used for doors and windows is not obvious, and the price is cheap. Fluorocarbon spraying does not have the above problems, but the price is more expensive, and it is mostly used for aluminum plate spraying of aluminum curtain walls. 5, aluminum alloy profiles can be insulated: Insulation between the aluminum profiles made of low thermal conductivity of non-metallic insulation structure made to reduce the heat conduction inside and outside the aluminum profile. This kind of aluminum alloy profile is called "Broken Bridge Aluminum" or "Broken Bridge". The aluminum alloy profile of the broken bridge is significantly lower than the aluminum alloy profile without the broken bridge in general (the thermal conductivity can be reduced to 1.8W/M2K from the smaller 6W/M2K).

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