The main characteristics of hot aluminum alloy profiles are insulation, sound insulation, environmental protection, and energy conservation, which are in line with international and domestic industrial policies.
It is called thermal insulation aluminum alloy profile, which is a composite material composed of aluminum alloy profiles on the inner and outer layers, and low thermal conductivity non-metallic insulation materials connected in the middle to form an "insulation bridge", abbreviated as thermal insulation profile.
There are two main production methods for thermal insulation profiles. One is to use thermal insulation strip materials and aluminum profiles to form a "thermal insulation bridge" through mechanical tooth cutting, threading, rolling and other processes, known as the "threading type" of thermal insulation profiles; Another method is to pour insulation materials into the insulation chamber of aluminum alloy profiles, and after solidification, remove the broken bridge metal and other processes to form an "insulation bridge", which is called a "cast" insulation profile.
The inner and outer sides of thermal insulation profiles can be profiles with different cross-sections or profiles with different surface treatments and colors. However, due to the influence of geography and climate, it is necessary to avoid the significant difference in the linear expansion coefficient between insulation materials and aluminum profiles, which may cause significant stress and gap between the two during thermal expansion and contraction; At the same time, insulation materials and aluminum profiles are combined into one, and in the structure of doors, windows, and curtain walls, they are subjected to the same force as aluminum materials. Therefore, it is required that the insulation material must also have tensile strength, bending strength, coefficient of expansion, and elastic modulus similar to aluminum alloy profiles, otherwise it will cause the thermal insulation bridge to be disconnected and damaged. Therefore, the selection of insulation materials is very important.
Thermal insulation profiles are applied to the new generation of environmentally friendly and energy-saving aluminum alloy doors and windows, mainly to address the technical key issue of high thermal conductivity and poor thermal insulation of traditional aluminum alloys, as well as single products. The new type of doors and windows made of insulated profiles using hollow glass have the following advantages:
1. Energy saving and anti condensation: Its thermal conductivity coefficient K value can reach below 3.0, effectively preventing heat conduction between indoor and outdoor doors and windows, saving energy by more than 45%. Moreover, the surface temperature inside doors and windows is close to room temperature, reducing the phenomenon of door and window condensation caused by water supersaturation indoors.
2. Environmentally friendly and comfortable: The multi cavity structure of insulated aluminum profiles and insulated glass with different thicknesses can effectively reduce the resonance effect of sound waves, prevent sound transmission, and create a peaceful and comfortable living environment. At the same time, it saves energy and reduces the use of air conditioning and heating equipment. In addition, aluminum alloy can be recycled and reused, without pollution, which is conducive to environmental protection.
3. Good water tightness and air tightness: The new aluminum doors and windows adopt a windproof design, which enables them to resist wind pressure and achieve air tightness of level 1, and the water tightness performance is level I-III.
4. Decorative performance: The inner surface of the heat-insulating profile adopts different surface treatment methods, matched with different colors, to decorate different styles of indoor and outdoor decoration effects.
Overall, thermal insulation profiles are the ideal material for the new generation of environmentally friendly and energy-saving doors and windows.