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uPVC windows are made of polyvinyl chloride resin as the main raw material, plus a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers, etc., are extruded into molding materials, and then made into doors and windows by cutting, welding or screwing Frame fan. uPVC windows is a form of window that was actively promoted by the country in the mid-1990s after wood, iron and aluminum alloy windows. Because of its lower price and better performance and price, it is still widely used. What about the price of uPVC windows? What factors will affect the price of uPVC windows? Let's find out together.
The market price of uPVC windows is estimated according to the price of various market materials. 88 sliding windows are generally 110 yuan for profiles, 8 yuan for hardware, 10 yuan for accessories, 30 yuan for production and installation, 20 yuan for reinforced steel, 30 yuan For the glass of 4 yuan, it is generally 212 yuan per square meter. For 80 sliding windows and 105 profiles, the rest are the same, and it is estimated to be 207 yuan per square meter; for 60 casement windows, it is 150 yuan for profiles and 28 yuan for hardware. , and the rest of the prices are the same as above. It is estimated that the price of uPVC windows per square meter is 272. All the prices are well-founded. The most important thing for the price is to see the configuration.
Relevant people introduced that the main material of uPVC windows is a specially formulated rigid PVC polyvinyl chloride profile. The person in charge of product research and development of Renyuan Doors and Windows said: "Although they are all the same PVC, but in the manufacturing process such as resins, additives, etc. are not the same, these are not visible on the outside, because of their differences, will directly It affects the anti-ultraviolet and anti-aging ability of the profile, as well as the strength of the profile. In addition, the structure of the profile will also directly affect the price and quality of doors and windows. From the cross-sectional structure of uPVC windows, it can be seen that the profile's impact resistance and pressure resistance, in doors and windows The interior should generally be lined with steel linings to strengthen the doors and windows.”
According to market sales personnel, the steel linings of uPVC windows vary greatly. The higher-grade steel linings are made of galvanized steel with a thickness of about 2.5MM, while the uPVC windows produced by some small-scale manufacturers only use steel coated with anti-rust paint. , the thickness is relatively thin, about 1.5M, and the steel lining will be omitted at the corners of the window frame, which are invisible on the outside, but affect the use.
Although the main point of doors and windows is airtightness, the most prone to imprecision is the inclination of doors and windows, especially doors. If the welding is not good, cracking and breaking will occur after a certain strength and pressure. The person in charge of China Construction said this. Therefore, when purchasing uPVC windows, it is necessary to pay attention to whether the inclination of the doors and windows is manually welded.
Due to the different opening methods of uPVC windows, the hardware accessories are also different. Different opening methods also make the sealing performance of the doors and windows very different, and their prices are also different. Generally speaking, if hardware accessories are selected from imported brands, their prices and quality are relatively high. Of course, some small manufacturers with inferior brands may reduce hardware accessories in order to save costs, such as the application of double-sided locking hardware, he may change to a single set of accessories and so on. In addition, other accessories such as glass, sealing strips, etc. will also affect the quality of uPVC windows. Adhesive strips are uPVC windows thermal insulation and sealing off-plating. The products of professional manufacturers have high aging resistance, corrosion resistance and strength, while some inferior products cannot withstand high temperature and ultraviolet radiation, and are prone to discoloration and aging.
Some decoration companies believe that the quality of uPVC windows is directly proportional to the price. Some small manufacturers purchase inferior products in order to save costs. Although they cannot be seen on the surface, they will have quality problems after a period of use. In addition, the after-sales service of small manufacturers is not in place, and maintenance personnel cannot be found. And reputable big manufacturers not only have reliable quality suppliers, effective imported equipment, but also relatively perfect after-sales service and credit guarantee, which are worth considering.
The main raw material of the profile of uPVC windows is polyethylene resin, which needs to be added with titanium*, UV absorber, processing modifier, impact modifier, internal and external lubricants and fillers before molding. Since the basic composition of the profile is polyvinyl chloride resin, it has the following characteristics:
In the molten state, the plastic has a relatively high fluidity, so a precise cross-sectional structure can be formed through the mold, so as to achieve the functional requirements that the window should have. Moreover, a divided chamber can be formed to improve the functions of heat preservation, sound insulation and drainage of the window, and the corrosion of the reinforced steel can be avoided.
Compared with other doors and windows, plastic doors and windows have more superior technical characteristics in terms of energy saving and improvement of indoor thermal environment. According to the test of the Institute of Physics of the Construction Research Institute, the heat transfer coefficient of single-glass reinforced plastic and aluminum windows is 64W/M2K; the heat transfer coefficient of single-glass uPVC windows is about 47W/M2K; the heat transfer coefficient of ordinary double-glazed steel and aluminum windows is It is about 3.7W/M2K; while the heat transfer coefficient of double glass plastic steel window is about 2.5W/M2K. Doors and windows account for 30% of the building's outer protective structure area, and its heat dissipation accounts for 49%. It can be seen that uPVC windows have good energy-saving benefits.
The sound insulation performance of steel and aluminum windows is about 19 decibels, and the sound insulation performance of uPVC windows can reach more than 30 decibels. In increasingly noisy urban environments, the use of uPVC windows can make the indoor environment more comfortable. According to the information provided by Japan, in order to achieve the same noise reduction requirements, the distance between the building with aluminum windows and the main traffic road must reach 50 meters, and the uPVC windows can be installed at 18 meters. According to the test of Beijing Institute of Labor Protection, the indoor noise of using uPVC windows is reduced to 32DB (A), and the effect is very good. Due to economic development, the problem of urban noise is becoming more and more serious, and uPVC windows will provide a great contribution to improving the sound environment quality of people's living and working. In addition, uPVC windows are corrosion-resistant and can be used in corrosive environments such as coastal and chemical plants. The use of ordinary users can also reduce the labor and cost of maintaining paint.
It can adapt to the domestic decorative effect requirements, and the human body feels more comfortable than metal. Because uPVC windows have some of the above outstanding advantages, they are being widely used in our country and become a new trend in the field of construction.
Nowadays, solid wood windows and ordinary broken bridge aluminum alloy windows are generally not used; the most used materials are uPVC windows. The price of uPVC windows is generally between 150-600 yuan/square meter, which is acceptable to most people. The price/performance ratio is the main factor for its popularity.
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