According to relevant departments, China's "Ninth Five-Year Plan" and the 2010 Development Plan put forward a new standard for building energy efficiency, which requires the implementation of a 50% target for building energy efficiency. In buildings, doors, windows, walls, roofs and floors are the four major parts of building energy consumption. Doors and windows are ranked first, which accounts for about 50%. In the development of new types of structural windows and doors, the first priority is to meet the requirements of building energy conservation. The insulation aluminum doors and windows basically meet the needs of the projects under construction, with good insulation, heat insulation, sound insulation, and anti-condensation, and about 50% energy saving. It is a green and environmentally friendly product. It has the following features:
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1. Resistance to wind pressure and structural deformation Aluminum alloy doors and windows are widely promoted, mainly due to its own easy processing and high strength performance. The newly developed EAH series of aluminum alloy doors and windows is based on this research and development . This product will not affect its performance due to the use of new technology, and it still retains the easy processing and wind pressure resistance and deformation resistance of the aluminum alloy itself, so that it does not require special maintenance. At the same time, in order to meet the requirements of buildings at all levels, various processes such as fluorocarbon spraying, electrostatic spraying, and anodizing treatment provide products with colorful colors and strong decorative effects.
2. Thermal Insulation and Sound Insulation Performance Insulation aluminum alloy doors and windows are PU resins that are infused with a heat insulation king in a specially designed aluminum alloy cavity. The aluminum walls are then separated to form a broken bridge. Stopped heat conduction. And with the 5+9+5 hollow glass, the K value of thermal conductivity is reduced from 5.93W/m2K of ordinary aluminum doors and windows to 2.94W/m2K. The heating of the winter room and the summer air-conditioning cooling energy saving more than 40%.
When the temperature difference in the cold winter is 500C, the doors and windows will not produce condensation, which solves the problem of the pollution of interior decoration caused by ordinary aluminum alloy doors and windows. At the same time, the sound insulation performance of doors and windows is maintained at 30-40dB, making people have a quiet and warm space in downtown. EAH heat preservation doors and windows aluminum alloy doors and windows series products have adopted the principle of combining equal pressure and four seals, making its airtightness reach the national standard, and the watertightness meets the national standard.
3. Application Prospects Once EAH aluminum alloy doors and windows are invented, they have been favored by users for their excellent performance and have achieved good economic and social benefits. EAH series products have been used in Beijing Yuyuan Apartment, Sanxia Building, Dongfang Building of the Ministry of Foreign Affairs, Shijiazhuang Long-distance Communication Bureau, Xinjiang Mingyuan Apartment, and Jinan Victory Building. According to user feedback information, EAH series aluminum alloy doors and windows are a real energy-saving and environmentally friendly product. The development and development of EAH series aluminum alloy doors and windows have received strong support from the Aluminum Door and Window Curtain Wall Committee of the Ministry of Construction, the Beijing Municipal Construction Commission and relevant departments.
The reason why EAH series insulation aluminum alloy doors and windows get the attention and support from all walks of life is because the product itself has great social benefits. Through theoretical calculations, energy saving of EAH aluminum alloy doors and windows has reached about 50%, and a common residential room can save 4.5 tons of coal and 460 kWh of electricity every year. The heating and cooling costs saved during use can compensate for the higher portion of the initial installation fee in a short period of time, which can be described as a lifetime investment benefit. The use of EAH insulation doors and windows has no aging problems and no gas pollution. After the building has reached the end of its life cycle, doors and windows can be recycled and will not cause environmental pollution for the next generation. Therefore, EAH insulation aluminum doors and windows have been identified as "green" products. 
