ã€China Aluminum Industry Network】 1. What is Aluminum-plastic Coextrusion Doors and Windows
Aluminum-plastic co-extrusion doors and windows, as the name suggests, is a profile window and door that is tightly integrated with an aluminum lining and a plastic. Its profile production uses an aluminum lining containing recycled aluminum as a skeleton, and a hard crust micro foam plastic with a thickness of about 4 mm is compounded. On the surface of the aluminum lining, the effect of the inner metal lining and the outer plastic junction is achieved.
Therefore, the door and window integrates traditional metal doors, windows and plastic doors and windows, and is compatible with the high strength of metal doors and windows and the heat preservation advantages of plastic doors and windows. The appearance of aluminum-plastic co-extrusion doors and windows is a major change in the history of doors and windows. As a new generation of building energy-saving doors and windows, it will inevitably occupy a very important position.
Second, the characteristics of aluminum-plastic co-extruded profiles
1. The use of foamed PVC formula to replace the current ordinary rigid PVC formula, to further improve the plastic part of the insulation, sound insulation;
2. The use of skinning foam technology to ensure the surface hardness of the profile quality;
3. Spray surface with fluorocarbon paint, comfortable and elegant appearance, improve the quality of doors and windows;
4. The use of plastic and metal coextrusion composite technology new technology to achieve the integration of plastic and metal;
5. Has the advantages of insulation, sound insulation, energy saving, etc. of ordinary plastic doors and windows;
6. Due to the adoption of co-extrusion technology and the use of metal connections at the corners to form a closed loop, the force of the window member is greatly improved, thereby solving the wind pressure resistance of the whole (including the corners);
7. The window is not easy to deform, twist, sagging, improve and ensure long-term airtight, watertight, open freely;
8. It is easy to design the bright and comfortable large windows pursued by modern people;
9. Using fluorocarbon paint to spray the surface makes it possible to beautify the city and integrate with modern home furnishings.
10. The assembly process is simple and easy to operate, making popularization and promotion more convenient and making on-site production feasible;
11. It is easier and more feasible for the building to be protected from lightning strikes, and it will facilitate the fire protection of high-rise buildings.
Third, the advantages of aluminum-plastic co-extrusion window
1. Aluminum plastic co-extrusion composite heat insulation is good. The use of micro-foam hard crust inside the aluminum lining soft combination, the use of EPDM rubber seal on the border, close tight, airtight, particularly watertight performance, superior insulation properties; sash hollow glass structure, so that the windows display Out sound insulation, heat insulation, heat preservation, excellent function, a large number of savings in mining and refrigeration costs, heat transfer coefficient K value of 1.5-2.6 or less, energy saving effect is significant, a few years of energy-saving costs can make up for early investment.
2. Aluminum plastic co-extrusion waterproof function. The principle of pressure balance is used to design a structural drainage system with drainage outlets, smooth drainage, and good water tightness.
3. Aluminum-plastic co-extrusion prevents condensation and frost formation. The aluminum-plastic co-extruded profile can realize the three-seal structure of doors and windows, reasonably separate the water vapor cavity, successfully achieve the equal pressure of gas and water, significantly improve the watertightness and airtightness of the doors and windows, and achieve a net and bright effect.
4. Aluminum plastic co-extrusion mosquito screen design. Invisible screens can be installed and used inside and out, with anti-mosquito and flies, especially suitable for mosquitoes and insects in the north. They can also choose anti-theft diamond screens and have anti-theft function.
5. Aluminum-plastic co-extruded anti-theft and anti-loose devices. Coupled with a unique multi-point hardware lock to ensure the stability and safety of the window in use.
6. Aluminum-plastic co-extrusion noise protection is particularly good. The micro-foam structure has been carefully designed with tight joints. The test results show that the sound insulation of the air can reach 30-45 db. It can ensure that the residents within 30 meters on both sides of the highway are free of noise, and the neighboring downtown can also guarantee the quiet and warm interior.
7. Aluminum plastic co-extrusion fire-retardant energy-saving features. The actual test has passed the test of fire resistance 0.5h.
8. Aluminum-plastic co-extruded sand, wind pressure. The internal frame adopts dovetail groove design, strong resistance to wind pressure deformation, and good anti-vibration effect. It can be used in high-rise buildings and residential houses. It can design a large-area window type with a large lighting area; this kind of window is more airtight than any aluminum. , plastic windows are all good, to ensure that there are no dust in the indoor sand sill and floor in areas with large sandstorms.
9. Al-plastic co-extrusion with high strength and no maintenance. Aluminum-plastic co-extrusion doors and windows integrate high tensile and shear strength and thermal deformation resistance. Durable aluminum-plastic co-extruded profiles are not susceptible to sea salt corrosion, and do not easily yellow and fade, requiring little maintenance.
10. Aluminum-plastic co-extruded profiles are available in various colors and are highly decorative. The indoor and outdoor surfaces of the doors and windows can be different colors to meet the customer's preference for color effect and the aesthetic needs of the color space, in line with the architect's personalized design requirements. Aluminum-plastic co-extruded profiles adopt streamlined design and luxurious style.
11. Aluminum-plastic co-extruded profiles are green building materials and circular economy. Aluminum-plastic co-extrusion doors and windows in the production process will not only produce harmful materials, all materials can be recycled and reused, is a green building materials and environmental protection products, in line with human sustainable development, in line with thirteen five-year development strategy.
12. Aluminum plastic co-extrusion opens more form, comfortable and durable. There are flat open type, introversion type, top suspension type, push-pull type, flat open and introverted combined type, etc., applicable to public buildings, residential quarters and municipal engineering; high-quality hardware accessories durable, humanized operation handle design, beautiful and comfortable, easy to open Flexible, each use of the action has been tested, the number of fatigue tests up to tens of thousands of times, sliding easily and silently, mature and perfect doors and windows processing technology, high-precision program control processing center for production, quality and stability guaranteed.
Fourth, aluminum plastic co-extruded material characteristics
1. Aluminum-plastic co-extrusion doors and windows are advanced aluminum-plastic composite doors and windows, which are the fifth generation of new energy-saving insulation doors and windows following wooden windows, iron windows, plastic steel doors and windows, and ordinary color aluminum alloy doors and windows. Its surface can be coated, co-extruded, hot pressed into a variety of colors.
2. The composition of aluminum-plastic co-extrusion doors and windows is a combination of the environmental protection of wooden windows, the solid security of aluminum windows and steel windows, and the commonness of energy-saving and heat preservation of steel doors and windows. Its structure is more complicated than the ordinary aluminum doors and windows, and the cost is higher. The common color aluminum does not have the heat insulation function, does not keep heat and does not save energy, and some domestic regions have already included eliminated products.
3. The section thickness of profiles of aluminum-plastic co-extruded windows and doors strictly follows the national standards. All aluminum wall thickness requirements must be between 1 and 1.4 mm, because the thickness of the aluminum wall is related to the assembly technology and the solid security issues that make up the doors and windows. The wall thickness of the coextruded plastic layer is between 3.5-5mm, while the thickness of ordinary plastic doors and windows is generally below 2.0mm.
4. Aluminium-plastic co-extrusion doors and windows use a special angle of 3mm or more for the assembly corner, and the assembly corners must be welded for sealing. Ordinary plastic steel doors and windows are only connected by welding at the corners, and their solid safety is poor, but the cost is low, and the assembled aluminum-plastic co-extrusion doors and windows for adults hang on the sash.
The assembly of the complete sets of equipment and the use of manual on-site assembly are far from technically demanding. Special aluminum-plastic co-extruded sections and ordinary plastic sections are not of the same grade and cannot be compared.
Fifth, how to judge the advantages and disadvantages of aluminum-plastic co-extruded profiles
1. Profile wall thickness: Generally do home improvement products, door and window factory most selected products with high yield, that is, thinner wall thickness products to reduce the cost. The national standard stipulates that the aluminum lining thickness of the profile should be greater than or equal to 1.0 mm, and the foamed plastic should be greater than 3.5 mm.
2. Profile structure: aluminum-plastic co-extruded aluminum lining structure should adopt dovetail groove structure.
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