Broken bridge aluminum doors and windows, using heat insulation broken bridge aluminum profiles and insulating glass, have the functions of energy saving, sound insulation, noise prevention, dust prevention and waterproof. The thermal conductivity K value of the broken aluminum doors and windows is below 3W/㎡ k, which reduces the heat loss by half compared with ordinary doors and windows, reduces the heating cost by about 30%, and the sound insulation capacity is above 29 dB, and the water tightness and air tightness are good, all reaching the national A 1 class window standard.
Dominant characteristics
⊙ Reduce thermal conductivity: the thermal conductivity of aluminum alloy profile with thermal insulation broken bridge is1.8 ~ 3.5 w/m2 k, which is much lower than that of ordinary aluminum alloy profile140 ~170 w/m2 k; With the hollow glass structure, its thermal conductivity is 2.0 ~ 3.59 w/m2 k, which is much lower than that of ordinary aluminum alloy profiles (6.69 ~ 6.84 w/m2 k), effectively reducing the heat conducted through doors and windows.
⊙ Anti-condensation: The temperature of the inner surface of the profile with heat insulation strips is close to the indoor temperature, which reduces the possibility of indoor moisture condensing on the profile surface due to supersaturation.
⊙ Energy saving: In winter, the window frame with heat insulation strips can reduce 1/3 the heat lost through the window frame; If there is air conditioning in summer, the window frame with heat insulation strip can reduce energy loss.
⊙ Environmental protection: Through the application of heat insulation system, energy consumption can be reduced, and environmental radiation caused by air conditioning and heating can be reduced. ⊙ Good for health: The heat exchange between human body and environment depends on indoor air temperature, airflow speed and outdoor air temperature. By adjusting the indoor temperature of doors and windows not lower than 12~ 13℃, the most comfortable environment is achieved.
⊙ Noise reduction: The hollow glass structure with different thickness and the hollow structure of the aluminum profile with heat insulation and broken bridge can effectively reduce the vibration effect of sound waves, prevent the sound from spreading and reduce the noise by more than 30dB.
⊙ Multicolor: After surface treatment such as anodizing, powder spraying and fluorocarbon spraying, aluminum profiles with different colors can be produced. Indoor and outdoor double-color windows with different colors can be produced by rolling aluminum alloy doors and windows.
Optional installation
Select employment/use
A. Profile wall thickness: generally used for home improvement products. Most door and window factories choose products with high yield, that is, products with thin wall thickness, to reduce costs. For example, the thickness of 1.3 produced in Da Rui is lower than the national standard. The national standard stipulates that the profile thickness should be greater than or equal to1.4 mm.
B. Thermal insulation strip: The thermal insulation strip is the most critical part of the broken bridge aluminum profile, and PA66 nylon must be used, which is stipulated by the national standard. However, many manufacturers in the decoration market use cheap PVC plastic insulation strips, which will seriously affect the service life and safety of products.
C, try to use the original products, and don't spray the self-tapping products twice. Those products that allow customers to choose the color of profiles at will are mostly self-tapping products with secondary spraying, and the quality of products cannot be compared with the original products.
Selection of hardware for broken bridge aluminum doors and windows;
To choose high-quality hardware, manufacturers must get goods directly from hardware manufacturers, and there are many counterfeit products on the market.
Select glass
High-quality insulating glass is preferred. The original piece is float glass, and the thickness standard is 5 mm. The thickness of aluminum strip between two pieces of glass is between 12mm- 15mm, which should be set according to the specifications of door and window profiles. The area of insulating glass for doors and windows is larger than 1.5 square meter, which needs tempering treatment. Regular professional glass processing enterprises produce, and the more reliable manufacturers in Tianjin are Baitai and so on.
Specification of rubber strip for broken aluminum doors and windows: the rubber strip is made of imported EPDM products, with a service life of 30 years, and the service life of inferior products is only about 5 years. Silicone weatherproof sealant should be used.
Distinguish between true and false rubber strips: look, smell and stretch. Authentic tape is pure black in color, with no concave and convex points on the surface and good density. Smell: normal rubber smell, the smell should not be pungent or strong. Stretching: strong tensile force, elasticity and not easy to fold.
manufacturing process
Processing and manufacturing of broken bridge aluminum doors and windows:
1, broken bridge aluminum doors and windows should be manufactured in the factory, not in the construction site. The manufacture of doors and windows should meet the requirements of the design and Code for Installation and Acceptance of Insulated Aluminum Alloy Doors and Windows. The insulated aluminum alloy door and window frames should be installed firmly, the doors and windows should be pushed and pulled flexibly, and the window sill should be provided with drainage holes and limit devices. Fasteners shall comply with relevant technical regulations; The model, specification and performance of hardware shall conform to the provisions of current national standards.
2. The drainage hole on the slide of sliding window should be processed according to the principle of inner fan outer hole and outer fan inner hole to ensure the sealing performance of doors and windows, especially for flat-topped sliding windows.
3. Before assembling the broken aluminum doors and windows, the machining burr at the end should be removed, and sealing measures such as waterproof glue must be taken at the joint of the end node and profile to prevent the structure from water seepage.
4. The structural assembly of concealed frame window must be made and maintained in clean room.
Solvent must be used to remove dust, oil stains and other dirt on the bonding surface between glass and aluminum frame; Every time a component or a piece of glass is cleaned, a clean dry rag should be replaced; The solvent should be poured on the wiping cloth, and it is forbidden for the wiping cloth to contact the bottle mouth of the solvent. Glue injection must be full, no bubbles, no glue leakage, and the surface of glue joint should be flat and smooth; The residual glue in the glue receiving seam shall not be reused.
fixed
(1) installer:
Window frame in place → fix window frame → fill gaps → install hardware fittings → install glass → glue and clean.
(2) Key points of construction:
A, each layer of window frame installation should be horizontal and vertical lines, each layer elevation is consistent, straight up and down.
B, when the window frame and the wall are fixed, first fix the upper frame, then fix the border, and fix it with plastic expansion bolts.
C. The inner cavity of the expansion joint between the frame and the hole is filled with elastic materials such as closed-cell foam plastic and foaming agent, and the surface is sealed with sealant.
(3), heat insulation aluminum alloy doors and windows installation process:
A, doors and windows installation must be firm, the number, location and buried connection of embedded parts must comply with the design requirements, the number of fasteners used to fix each steel bar shall not be less than 3, the spacing shall not be greater than 300mm, and the distance from the end of the steel bar shall not be greater than100 mm; Except stainless steel, the surfaces of steel bars, fasteners and hardware shall be treated with anti-corrosion coating.
B, doors, windows and glass installation must be carried out after the wall wet operation method is completed and hardened. Doors and windows should be installed by the reserved hole method. When installing doors and windows, the ambient temperature should not be lower than 5℃;
C, window and wall fixed timing, should be fixed on the box, and then fixed on the box:
Concrete holes should be fixed with nails or plastic expansion bolts;
Brick holes shall be fixed by plastic expansion bolts, and shall not be fixed at brick joints;
Holes with embedded iron parts should be fixed by welding, or a bottom hole should be made on the embedded parts according to the specifications of fasteners, and then fixed by fasteners;
D, when installing the combination window, the hole of the combination window should be set with embedded parts or reserved holes in the corresponding position of the material. Has grown two millimeters together material and the connection of the mouth of the cave:
Has grown two millimeters spell material and concrete lintel or column connection should be embedded iron, fixed by welding method, or in the embedded parts according to the fastener hole, and then fixed by fasteners;
Has grown two millimeters spell material and brick wall connection, should first put has grown two millimeters spell material at both ends into the reserved hole, and then with C20 fine stone concrete pouring fixed;
The two window frames shall be clamped by splicing materials, and then tightened in two directions with fasteners, and the spacing shall be ≤ 400 mm The ends of fasteners and the gaps between splicing materials and window strips shall be sealed with sealing strips;
E, doors and windows connected to the wall by the method of embedded wood brick, wood brick should be anticorrosive processing;
F the cavity of expansion joint between the window frame and the hole shall be filled with elastic materials such as closed-cell foam plastic and expanded polystyrene, and the surface shall be sealed with sealant. For projects with high requirements for thermal insulation and sound insulation, corresponding thermal insulation and sound insulation materials should be used for filling.
G, doors and windows surface clean, no scratches, bumps, no rust; The gluing surface is smooth, flat, uniform in thickness and free of air holes; It is forbidden to set up scaffolding or hang heavy objects on door and window frames, fans and stiles, and it is forbidden to trample on window frames, fans and stiles; When there is oil stain on the surface of doors and windows, it should be cleaned with water-soluble cleaning agent, and it is forbidden to scrub with rough or corrosive chemical liquid.
According to the introduction of relevant departments, China's Ninth Five-Year Plan and 20 10 development plan put forward new standards for building energy efficiency, demanding to achieve the goal of building energy efficiency of 50%. In buildings, doors and windows, walls, roofs and floors are four parts with high energy consumption, among which doors and windows rank first, accounting for about 50%. Therefore, when developing new structural doors and windows, we must first meet the requirements of building energy conservation. Broken bridge aluminum doors and windows basically meet the needs of projects under construction, with good thermal insulation, sound insulation and dew prevention performance, and energy saving of about 50%, which is a real green product. It has the following characteristics:
Wind pressure resistance and structural deformation resistance
The reason why broken aluminum doors and windows are widely popularized is mainly because of their high strength performance. The newly developed broken bridge aluminum doors and windows are developed on this basis. The performance of this product will not be affected by the use of new technology, and it still retains the wind pressure resistance and deformation resistance of aluminum alloy, so it does not need special maintenance. At the same time, in order to meet the requirements of buildings at all levels, fluorocarbon spraying, electrostatic spraying, anodizing and other processes provide colorful colors for products and have strong decorative effects.
Thermal insulation and sound insulation performance
Broken bridge aluminum doors and windows are made by filling the specially designed aluminum alloy cavity with PU resin, which is called the king of heat insulation, and then separating the aluminum wall to form a broken bridge. It prevents heat conduction. Combined with 5+9+5 insulating glass, the k value of thermal conductivity decreases from 5.93W/m2K of ordinary aluminum doors and windows to 2.94W/m2K. Make indoor heating in winter and air conditioning refrigeration in summer save energy by more than 40%.
In the cold winter, even if the temperature difference reaches 500℃, doors and windows will not produce condensation. At the same time, the sound insulation performance of doors and windows is kept between 30-40dB, so that people can have a quiet and warm space in the downtown area. The series products of broken bridge aluminum doors and windows all adopt the principle of equal pressure four-way sealing, which makes their air tightness reach the national standard level 1 and water tightness reach the national standard level 2.