Aluminum alloy doors and windows PK steel doors and windows in the end is stronger Various types of alloys made of aluminum plus various metal elements have advantages that other materials cannot match. They are light in weight and high in strength and can be extruded into various new and complex sections of materials used in various periods. Experts predict that although aluminum alloy doors and windows have suffered from weak market performance in recent years due to the impact of low-grade products, in the future, driven by the development of the real estate industry, aluminum alloy doors and windows have low corrosion resistance, small deformation, strong fire resistance, and use. The long life, environmental protection and energy saving characteristics determine that it is still the mainstream in the market in the future. Aluminum alloy doors and windows came out in China in the early 1980s. Due to its unique advantages of lightness, corrosion resistance and other unique advantages, it gradually replaced the original steel window and was favored by consumers. However, the development of plastic steel doors and windows in the past two years is fast, which has caused a significant impact on the market of aluminum alloy doors and windows. Some people believe that the aluminum door and window frame has a strong thermal conductivity, which is not conducive to heat insulation, and plastic insulation can save energy. In response to this statement, the experts of the Aluminum Products Committee of the China Building Decoration Association believe that, in fact, the heat insulation is mainly glass, not window frame material. All along, steel windows are generally used in low-rise dwellings. This is because, on the one hand, plastics are subject to problems such as aging and cracking; on the other hand, due to the gap between the plastic and the steel plate in domestically produced plastic steel, air and water can enter and gradually corrode the steel plate, failing to ensure strength and rigidity. So at present, many plastic window frames are not straight, and they often cannot be easily opened and opened. In contrast, the unique advantages of aluminum alloys have long been recognized around the world. They can be used to make multi-function doors and windows of various complex sections. The service life can exceed 50 years or even longer. It is difficult to replace ordinary materials, and steel doors and windows cannot match. Under the dual pressure of plastic steel grabbing the market and foreign aluminum doors and windows factories entering the market, many companies believe that consumers abandon aluminum alloys mainly because they are not confident about thinner and thinner aluminum materials. If they continue to use low quality and low prices, A product will seize the market and will soon be eliminated from the market. To survive, companies must rely on high technology, speed up the development of new products, and create their own brand as soon as possible. For example, in order to be able to insulate steel from steel, companies can produce insulated aluminum short-bridge profiles that achieve the same thermal insulation as steel windows. Industry insiders pointed out that the impact of steel doors and windows made domestic enterprises aware of the need for innovation and quality. The opportunity to join the WTO made them feel a lot of pressure and challenges. As the large-scale aluminum alloy door and window production and listed enterprises such as the Northern International Xilin Aluminum, as the backbone enterprises of the industry, this year will be the road to the brand expansion of quality service, and the development of high-tech and high-quality aluminum alloy doors and windows. Year Plastic steel doors and windows as a new type of building products, in the past two years in the sudden emergence of the door and window market, the market share greatly exceeds the ordinary wood, steel doors and windows, color doors and windows, almost aluminum alloy doors and windows. More information shows that the next century will be the world of steel doors and windows. By then, aluminum alloy doors and windows will retreat to the ranks of being eliminated. So, plastic steel doors and windows and aluminum doors and windows in the end is better or worse? We may compare by the following performance characteristics. 1. Sound insulation performance According to statistics, the sound insulation performance of plastic steel doors and windows is much better than aluminum alloy doors and windows. For example, for a building that meets the same noise requirements, the distance between the building that installs aluminum alloy doors and windows and the main roads for traffic needs to be 50 meters away, and if steel doors and windows are used, it can be shortened to within 16 meters. 2, thermal insulation Referring to insulation performance, we need to compare the basic technical parameters of the material, for example, the thermal conductivity of PVC material is 0.14, while that of aluminum alloy is 175. In other words, under the same conditions, in terms of material thermal conductivity, aluminum is 1250 times that of PVC. Of course, if PVC is made into doors and windows, it is difficult to generalize the comparison of energy consumption. Because the interior loses heat, it is usually associated with roofs, floors, walls, doors and windows. However, scientific research shows that as an ordinary residence, air conditioning is also turned on, and rooms with plastic steel doors and windows save more than 5 degrees of electricity per day than rooms equipped with aluminum alloy doors and windows. 3, corrosion resistance Plastic steel doors and windows can resist acid and alkali corrosion and other chemical substances, so they are not afraid of urban environmental pollution, hydrochloric acid and acid rain and other erosion. The aluminum alloy is not so easy to cause surface oxidation and shorten the service life. 4. Installation performance and service life of doors and windows Plastic steel doors and windows are significantly lower than aluminum alloy doors and windows, but also due to the overall shape, the installation speed is very fast, which makes the entire ergonomics greatly improved. In terms of service life, the normal service life of steel doors and windows is 30 to 50 years, which is lower than aluminum alloy doors and windows. 5, product style and process performance Plastic steel doors and windows and aluminum alloy doors and windows can be made into flat open, push and pull, hanging and curved windows according to the design requirements of the designers. Plastic steel door and window surface can be colored, covered, multi-color co-extruded; aluminum alloy doors and windows can be sprayed on the surface, electrophoresis, color can also be diversified. 6, the use of products and prices Plastic steel doors and windows and aluminum alloy doors and windows can be applied to a variety of industrial and civil construction, ordinary plastic doors and windows prices in the 200 to 500 yuan / square meter, double-layer steel doors and windows in the price of 500 yuan / square meters, high-grade steel doors and windows prices It can reach 1500 to 2,000 yuan / square meter. The average price of aluminum alloy doors and windows in the 200 yuan / square meters, high-end products in the price of 500 yuan / square meters. From the above analysis, plastic doors and windows and aluminum doors and windows have their own merits. Therefore, it is estimated that in the future a considerable period of time, steel doors and windows and aluminum alloy doors and windows will still be equal.