When we choose aluminum alloy doors and windows, we must first choose the appropriate doors and windows according to the size of the room. Select the appropriate types of doors and windows according to the standard scale and application requirements. Secondly, it is necessary to determine the various functional requirements of doors and windows according to the application parts of doors and windows (such as inner doors and outer doors). For example, doors and windows are required to have certain requirements for heat insulation, sound insulation, water tightness and air tightness. Finally, users choose the appropriate color of door and window frames according to their own preferences and the allocation with other decoration parts
aluminum alloy doors and windows
it is understood that the annual house construction project in China is equivalent to the sum of Europe and the United States. According to the calculation that the area of doors and windows accounts for about 25% - 30% of the general construction area, the annual quantity of doors and windows in China is more than 4 times that of all Europe. Among all kinds of doors and windows made of raw materials, aluminum alloy doors and windows account for about 55%, plastic doors and windows account for about 35%, steel doors and windows account for about 6%, and other doors and windows account for about 4%
building doors and windows is an indispensable and primary part of buildings, and the continuous development of the construction industry itself is also the decisive foundation for the development of building doors and windows. China is in the period of high-speed economic development. Although there are intermittent policy adjustments and short-term changes affected by the world environment (such as the fluctuation of raw material prices and other factors), from a long-term perspective, the continuous development of the construction industry in decades is beyond doubt. For the profession of building doors and windows, there are challenges in the context of the construction industry
first of all, it is the objective existence of economic hot spots and driving forces
China's economic layout and regional development strategies include the western development, revitalization of the old industrial base in Northeast China, the rise of central China, and the first economic hot areas in the East. In the next five years or so, it will enter a relatively stable period
second, the need to save energy capital
the country has accelerated the development of strategic emerging industries to an unprecedented height. Feng Fei, director of the Industrial Economic Research Department of the development research center of the State Council, said: "After the financial crisis, not only China, but also the global economy is transforming to a low-carbon economy, beginning to adjust the industrial structure represented by energy-saving new materials.
Third, the need to build a new socialist countryside.
the construction of new villages proposed by the center in the 12th Five Year Plan Outline goes hand in hand with the promotion of urbanization. In fact, the period of large-scale small town construction has come, and rural housing is completed every year It covers an area of 600 ~ 700 million square meters, and the demand for doors and windows is about 100million square meters every year, which provides an endless shopping mall for the construction of doors and windows
the aluminum profile, thickness, strength and oxide film used for excellent aluminum alloy doors and windows should conform to the relevant national specifications and rules. The wall thickness of the primary stressed rod of aluminum alloy windows should be more than 1.4 mm, the wall thickness of the stressed rod of aluminum alloy door head should be more than 2.0 mm, the tensile strength should reach 157 Newtons per square millimeter, the yield strength should reach 108 Newtons per square millimeter, and the thickness of oxide film should reach 10 microns. If the above specifications are not met, it is inferior aluminum alloy doors and windows, which cannot be used