At the 2010 China International Conference on Doors, Windows and Curtain Walls, Chen Wei, a specialist in plastic doors and windows of China Construction Metal Structure Association, believes that people in the industry should reconsider and evaluate the important role of plastic doors and windows in building energy conservation.
Development status of China's plastic doors and windows industry PVC plastic doors and windows as the country's key development of chemical building materials products, with its unique thermal insulation effect, is playing an important role in the building's external protection structure. Since the establishment of the National Chemical Building Materials Coordination Group in March 1993, it has been nearly 18 years, according to the “Several Opinions on Strengthening the Production and Promotion of Chemical Building Materials in China†issued in 1995 and the National Chemical Building Materials Industry issued in 2000. With the joint efforts of the entire industry, the product structure and grade of plastic doors and windows have been greatly improved and the overall performance level has been further improved. The market share in the domestic construction market has gradually increased. The market share of the new construction market reached 50% in 2009, and some large and medium-sized cities in the northern heating area have reached 70%, and the application rate in large and medium-sized cities in severe cold regions has reached more than 90%.
In the mid-1990s, some large-scale enterprises in the plastic door and window industry imported profiles and door and window technology from Europe. They experienced the path of absorption, digestion, and improvement. From product formulations, profile structures, and window systems, to all types of machinery and molds. Hardware and accessories have been further developed and improved, and some of the technology levels are approaching foreign advanced technologies.
The development, application and technological status of foreign plastic doors and windows Plastic doors and windows were first developed by Germany in the 1950s. In 1955, the German company Nabil succeeded in the development of profiles for plastic window frames, and Hearst Company further developed PVC plastic windows. After more than 50 years of hard work and continuous improvement of product technology, plastic doors and windows are insulated and insulated. , sound insulation, corrosion resistance and many other advantages have been rapidly applied in Europe and the world. At present, Germany is a world leader in terms of both technical level and development speed. Due to the worldwide energy crisis in the 1970s, the German government began to pay attention to the development and application of plastic doors and windows in order to solve the winter condensation of doors and windows in cold regions and save heating energy. With the vigorous promotion of the government, the quality of plastic doors and windows has rapidly increased, standards and specifications have been gradually improved, and a large-scale, high-speed development industry has finally formed.
At present, foreign plastic doors and windows mainly have two major systems, namely the European system and the North American system. The former is represented by German plastic doors and windows, which are mainly large sections. The wall thickness of the profile is generally between 2.5 mm and 3.0 mm. The function of the cavity is clear, and the structure is three to five cavities, mainly based on white profiles. The main treatment of the film. The latter is represented by plastic windows in the United States. Early introduction of German technology led to a complete system from formulation to section design to assembly and processing through absorption and innovation. The product is characterized by a complex section and many cavities. The wall thickness of the profile is between 1.8 mm and 2.0 mm. It is generally not reinforced steel, and it is reinforced by a mesh-like internal rib structure. The method is surface treated.
From the current national building energy conservation policies and standards, what are the requirements for building plastic doors and windows in China?
From the development track of the application technology of plastic doors and windows in developed countries, with the continuous improvement and improvement of energy-saving indicators, China's architectural plastic doors and windows will be on the rise. At present, the Chinese government has made saving resources, energy saving and emission reduction a major strategy for implementing the scientific concept of development and achieving sound and rapid economic and social development. According to information, in 2005, China’s building energy consumption accounted for about 27% of the total energy consumption of the entire society, and the energy consumption per unit of building was twice to three times higher than that of developed countries under the same climate conditions. If the current building energy consumption continues, by 2020, the building energy consumption will reach 45% of the national total energy consumption, and the situation is very serious. Therefore, the central government ranks building energy conservation as the top priority for energy conservation throughout the country. The state requires the end of the “Eleventh Five-Year Plan†period to build the system to complete 40% of the national energy conservation target.
Development status of China's plastic doors and windows industry PVC plastic doors and windows as the country's key development of chemical building materials products, with its unique thermal insulation effect, is playing an important role in the building's external protection structure. Since the establishment of the National Chemical Building Materials Coordination Group in March 1993, it has been nearly 18 years, according to the “Several Opinions on Strengthening the Production and Promotion of Chemical Building Materials in China†issued in 1995 and the National Chemical Building Materials Industry issued in 2000. With the joint efforts of the entire industry, the product structure and grade of plastic doors and windows have been greatly improved and the overall performance level has been further improved. The market share in the domestic construction market has gradually increased. The market share of the new construction market reached 50% in 2009, and some large and medium-sized cities in the northern heating area have reached 70%, and the application rate in large and medium-sized cities in severe cold regions has reached more than 90%.
In the mid-1990s, some large-scale enterprises in the plastic door and window industry imported profiles and door and window technology from Europe. They experienced the path of absorption, digestion, and improvement. From product formulations, profile structures, and window systems, to all types of machinery and molds. Hardware and accessories have been further developed and improved, and some of the technology levels are approaching foreign advanced technologies.
The development, application and technological status of foreign plastic doors and windows Plastic doors and windows were first developed by Germany in the 1950s. In 1955, the German company Nabil succeeded in the development of profiles for plastic window frames, and Hearst Company further developed PVC plastic windows. After more than 50 years of hard work and continuous improvement of product technology, plastic doors and windows are insulated and insulated. , sound insulation, corrosion resistance and many other advantages have been rapidly applied in Europe and the world. At present, Germany is a world leader in terms of both technical level and development speed. Due to the worldwide energy crisis in the 1970s, the German government began to pay attention to the development and application of plastic doors and windows in order to solve the winter condensation of doors and windows in cold regions and save heating energy. With the vigorous promotion of the government, the quality of plastic doors and windows has rapidly increased, standards and specifications have been gradually improved, and a large-scale, high-speed development industry has finally formed.
At present, foreign plastic doors and windows mainly have two major systems, namely the European system and the North American system. The former is represented by German plastic doors and windows, which are mainly large sections. The wall thickness of the profile is generally between 2.5 mm and 3.0 mm. The function of the cavity is clear, and the structure is three to five cavities, mainly based on white profiles. The main treatment of the film. The latter is represented by plastic windows in the United States. Early introduction of German technology led to a complete system from formulation to section design to assembly and processing through absorption and innovation. The product is characterized by a complex section and many cavities. The wall thickness of the profile is between 1.8 mm and 2.0 mm. It is generally not reinforced steel, and it is reinforced by a mesh-like internal rib structure. The method is surface treated.
From the current national building energy conservation policies and standards, what are the requirements for building plastic doors and windows in China?
From the development track of the application technology of plastic doors and windows in developed countries, with the continuous improvement and improvement of energy-saving indicators, China's architectural plastic doors and windows will be on the rise. At present, the Chinese government has made saving resources, energy saving and emission reduction a major strategy for implementing the scientific concept of development and achieving sound and rapid economic and social development. According to information, in 2005, China’s building energy consumption accounted for about 27% of the total energy consumption of the entire society, and the energy consumption per unit of building was twice to three times higher than that of developed countries under the same climate conditions. If the current building energy consumption continues, by 2020, the building energy consumption will reach 45% of the national total energy consumption, and the situation is very serious. Therefore, the central government ranks building energy conservation as the top priority for energy conservation throughout the country. The state requires the end of the “Eleventh Five-Year Plan†period to build the system to complete 40% of the national energy conservation target.