The main characteristics of hot aluminum alloy profiles are heat insulation, sound insulation, environmental protection and energy saving requirements, and this feature is in line with international and domestic industrial policies.
It is called thermal insulation aluminum alloy profile, that is, the inner and outer layers are composed of aluminum alloy profiles, and the middle is composed of non-metallic thermal insulation materials with low thermal conductivity to form a "thermal bridge" composite material, referred to as thermal insulation profiles.
There are two main production methods for heat insulation profiles. One is the use of heat insulation strip materials and aluminum profiles to form a "heat insulation bridge" through mechanical tooth opening, threading, rolling and other processes, which is called thermal insulation profile "threading" Another way is to insulate the heat-insulating material into the heat-insulating cavity of the aluminum alloy profile. After curing, removing the broken bridge metal and other processes to form a "heat-insulating bridge", called "casting type" heat-insulating profile.
The inner and outer sides of the heat insulation profile can be profiles with different cross sections or different color profiles with different surface treatment methods. However, due to the influence of the region and climate, avoid the large gap between the linear expansion coefficients of the thermal insulation material and the aluminum profile, and generate large stress and gap between the two during thermal expansion and contraction; at the same time, the thermal insulation material and the aluminum profile combination In one body, in the structure of doors, windows and curtain walls, it is equally stressed as aluminum. Therefore, the thermal insulation material must also have tensile strength, flexural strength, expansion coefficient and elastic modulus close to those of the aluminum alloy profile, otherwise the thermal insulation bridge will be disconnected and destroyed. Therefore, the selection of insulation materials is very important.
The heat insulation profile is applied to the new generation of aluminum alloy environmental protection and energy-saving doors and windows. It is mainly aimed at the technical problem of high thermal conductivity and poor heat insulation of the traditional aluminum alloy, and the single product is a new type of door and window made of hollow glass with heat insulation profile. The main advantages are as follows:
1. Energy saving and condensation prevention: The thermal conductivity K value can reach below 3.0, which effectively prevents the heat conduction of the indoor and outdoor doors and windows, which can save energy by more than 45%, and the indoor surface temperature of the doors and windows is close to room temperature, reducing indoor water Condensation of doors and windows caused by excessive saturation.
2. Environmental protection and comfort: the multi-cavity structure of hollow glass and insulated aluminum profiles with different thicknesses can effectively reduce the resonance effect of sound waves, prevent the transmission of sound, and create a safe and comfortable living room environment. At the same time saving energy, it can reduce the use of air conditioning and heating equipment, and the aluminum alloy can be fully recycled and reused, without pollution, which is conducive to environmental protection.
3. Good water tightness and air tightness: the new aluminum doors and windows are designed to be weatherproof, so that the wind pressure resistance and air tightness can reach level 1, and the water tightness is level Ⅰ-Ⅲ.
4. Decorable performance: The inner surface of the heat-insulated profile adopts different surface treatment methods and is matched with different colors to decorate different indoor and outdoor decorative effects.
In summary, the heat insulation profile is an ideal material for a new generation of environmentally friendly energy-saving doors and windows.