Understand aluminum alloy doors and windows, these 15 basic knowledge you must know!
Many friends who need to buy doors and windows, or just enter the window industry, do not even know the basic way to open doors and windows. Today, I specially sorted out 15 basic knowledge about aluminum alloy doors and windows for you, so that you can easily understand aluminum alloy doors and windows.
Broken bridge aluminum doors and windows
1. What are the characteristics of aluminum alloy doors and windows?
Advantages of broken bridge aluminum alloy doors and windows: corrosion resistance, good weather resistance, no formaldehyde and other harmful substances, excellent thermal insulation performance, in line with the national energy-saving and environmental protection policies, and can be designed according to the interior design and exterior wall design to achieve different color styles to meet the different needs of customers.
In the process of door and window production, manufacturers will also use oxidation, electrophoresis, porcelain electrophoresis, powder spraying, fluorocarbon, wood grain transfer, and other surface treatment methods to form an anti-oxidation and anti-corrosion protective film for aluminum alloys and improve the service life of aluminum alloy doors and windows.
2. What are the characteristics of aluminum alloy door and window profiles?
Aluminum alloy profiles are mainly aluminum with some alloy elements added to enhance strength and hardness.
Aluminum alloys can be divided into aluminum-silicon alloys, aluminum-copper alloys, aluminum-magnesium alloys, aluminum titanium alloys, aluminum zinc alloys, and aluminum rare earth alloys according to their chemical composition. The general raw material alloy is aluminum ingots. After the aluminum ingots are melted into aluminum rods, they are extruded into aluminum strips for doors and windows by heating. They are not easy to oxidize or rust at room temperature, but they will react with hydrogen after long-term use. To increase the service life, the surface needs to be sprayed with anti-oxidation treatment. The service life of the processed aluminum alloy profiles can reach more than 30 years.
3. What are the advantages of broken bridge aluminum alloy profiles?
Ordinary aluminum profiles have a single color and are conductors as a whole. They transfer and dissipate heat quickly, and the thermal insulation effect is average. The broken bridge aluminum profile uses PA66 nylon insulation strips to connect the two ends to form an insulation layer. The temperature difference between the inside and outside is different, which reduces heat transfer and plays a role in thermal insulation and energy saving. It can be made into two colors, and the inside and outside colors can be selected arbitrarily. It has a beautiful appearance and good performance. At the same time, the thermal insulation broken bridge aluminum profile can realize the three-way sealing structure of doors and windows, reasonably separate the water vapor cavity, successfully achieve air-water isobaric balance, and significantly improve the water tightness and air tightness of doors and windows.
4. What is insulating glass?
There is a certain space between the glass and the glass of insulating glass, and the frame is filled with desiccant to ensure the dryness of the air between the glass sheets. Hinges, door locks, and other frequently moving hardware accessories should be tightened immediately when they are loose. When the door lock is not working, you can add an appropriate amount of pencil lead or other lubricants to the keyhole for lubrication.
5. What is laminated glass?
Laminated glass is a composite glass product made of two or more pieces of glass with one or more layers of organic polymer interlayer sandwiched between them. After special high-temperature pre-pressing (or vacuuming) and high-temperature and high-pressure process treatment, the glass and the interlayer are permanently bonded together. Even if the glass is broken, the fragments will be stuck to the film, and the broken glass surface will remain clean and smooth.
Compared with other glass, it has the performance of shock resistance, anti-theft, bulletproof, and explosion-proof, which can effectively prevent the occurrence of fragments piercing and penetrating falling events, ensuring personal safety.
6. What is LOW-E glass?
LOW-E glass, also known as low-radiation glass, is a glass surface coated with a layer of film to block ultraviolet rays. The coating layer has the characteristics of high transmittance of visible light and high reflection of mid- and far-infrared rays, making it have excellent heat insulation effect and good light transmittance, as well as good anti-ultraviolet function compared with ordinary glass and traditional architectural coated glass.
7. What are the advantages and disadvantages of offline LOW-E and online LOW-E?
Online LOW-E glass: can be used as a single piece, laminated, bendable, and cheaper than offline, but the color is single, only high transmittance and blue-gray, and the thermal insulation performance of single glass is poor.
Offline LOW-E glass: It is composed of four or more layers of film, with various varieties. According to different climate characteristics, it can produce high, medium, and low transmittance products. The colors include silver gray, light gray, light blue and colorless transparent, etc.
Product adaptability: In foreign countries, online LOW-E glass is mainly used for low-rise civil buildings. Offline Low-E glass is mainly made into tempered hollow glass and used in high-end buildings such as commercial buildings.
8. What is hollow louver glass?
It is to install metal aluminum sheets inside the hollow glass, which is controlled by magnetic force. The angle can be adjusted at will to make it fully transparent, semi-transparent, or shading. At the same time, all the louvers can be pulled up to become fully transparent windows. It can be used 20,000 times for about 20 years. This product not only saves the use space but also achieves the purpose of sunshade. It also has heat preservation and noise prevention functions. It is clean, hygienic, and does not need to be cleaned. At the same time, it can bring novel visual effects.
9. What are the different types and characteristics of aluminum alloy doors and windows?
Aluminum alloy doors and windows mainly include sliding windows, casement windows, top-hung windows, inward-opening and tilting windows, and fixed windows.
Sliding doors and windows: doors and windows with two doors and windows in the same plane that can be pushed and pulled horizontally to the left and right.
Casement doors and windows: doors and windows that open forward or backward, and the opening leaves are not in the same plane, which will occupy a certain space and open to the indoor or outdoor wall.
Top-hung windows: the upper end is fixed, the opening leaves are tilted open, and the opening is at the bottom.
Inward-opening and inward-tilting windows: They adopt European standards and open to the interior for natural ventilation. They can also be opened when people are not at home. No need to worry about hitting the downstairs even if they are used for a long time in high-rise buildings. Fixed doors and windows: doors and windows that cannot be opened.
10. What are system doors and windows?
System doors and windows originated in Europe. After years of use, the airtightness and energy-saving effects of doors and windows are taken into consideration in the design. System doors and windows are the overall door and window system solutions adopted by system companies, which make clear commitments to the performance and quality indicators of the products. A series of important functions such as water tightness, air tightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, anti-theft, sunshade, weather resistance, and operating feel need to be considered. The comprehensive results of the performance of each link of equipment, profiles, accessories, glass, adhesives, and seals must also be considered.
11. What is the standard wall thickness of aluminum alloy door and window profiles?
The wall thickness of the main stress-bearing part of the aluminum alloy window profile is not less than 1.4mm. For high-rise buildings with more than 20 floors, the thickness of the profile can be increased; the wall thickness of the main stress-bearing part of the heavy sliding door profile is not less than 2.0mm; this is the national standard to meet the requirements of wind pressure resistance. Single doors and windows exceeding 3~4 square meters can be thickened, and columns can be added to increase their physical strength if they are too large.
12. What are the main hardware accessories of aluminum alloy doors and windows?
The main hardware accessories of casement windows: linkage handles, sliding supports, hinges, locking points, lock boxes, back buckle locks, top and bottom locks, etc.; the main hardware accessories of inward opening and tilting windows: linkage handles, connecting rods, linkages, etc.
13. What is the difference between hot bending and bending and tempering?
Hot bending glass is to heat the glass to the softening temperature, then bend it by its own weight or external force and cool it naturally; bent tempered glass is made by rapid air cooling with special equipment after bending and forming. Hot bending glass does not belong to safety glass, but bent tempered glass belongs to safety glass.
14. What are the characteristics of tempered glass and semi-tempered glass?
Tempered glass is 4-5 times stronger than ordinary glass. It becomes small particles after breaking and is a safety glass. It can withstand temperature changes of 250-320 degrees. Its disadvantages are self-explosion, inability to cut, and reduced flatness after tempering. The strength of semi-tempered glass is between ordinary glass and tempered glass. It is not easy to self-explode and has good flatness, but its heat resistance and impact resistance are inferior to tempered glass.
15. How to identify high-quality aluminum alloy doors and windows?
When buying doors and windows, try to choose products with a good market reputation and perfect after-sales system. Choose a big brand, that is guaranteed in terms of profiles, equipment, technology, standards, etc., and is not easy to have problems in quality and craftsmanship, and is more trustworthy.