· Fixed frame· Inward opening window· Outward opening window· Sliding window
Broken bridge aluminum doors and windows are made of insulated broken bridge aluminum profiles and insulated glass, which have functions such as energy saving, sound insulation, noise prevention, dust prevention, and waterproofing. The thermal conductivity coefficient K value of the broken bridge aluminum doors and windows is below 3W/㎡· K, which reduces heat loss by half compared to ordinary doors and windows, reduces heating costs by about 30%, and has a sound insulation level of over 29 decibels. The water and air tightness are good, both meeting the national A1 class window standard.
Advantages and Characteristics
⊙ Reduce heat conduction: Using insulated bridge cut aluminum alloy profiles, its thermal conductivity coefficient is 1.8-3.5W/㎡· k, which is much lower than that of ordinary aluminum alloy profiles, which are 140-170W/㎡· k; Adopting a hollow glass structure, its thermal conductivity coefficient is 2.0-3.59 W/m2 · k, which is significantly lower than that of ordinary aluminum alloy profiles at 6.69-6.84 W/m2 · k, effectively reducing the heat conducted through doors and windows.
⊙ Prevention of condensation: The temperature of the inner surface of the profile with insulation strips is close to the indoor temperature, reducing the possibility of indoor moisture condensation on the surface of the profile due to supersaturation.
⊙ Energy saving: In winter, window frames with insulation strips can reduce one-third of the heat lost through the window frame; In summer, if there is air conditioning, window frames with insulation strips can reduce energy loss more
⊙ Environmental protection: By applying insulation systems, energy consumption can be reduced, while also reducing environmental radiation caused by air conditioning and heating. ⊙ Beneficial for health: The exchange of heat between the human body and the environment depends on the indoor air temperature, air flow rate, and outdoor air temperature. By adjusting the temperature inside the doors and windows to no less than 12-13 ℃, the most comfortable environment has been achieved.
⊙ Reduce noise: By using hollow glass structures with different thicknesses and insulated bridge cut aluminum profile cavity structures, the resonance effect of sound waves can be effectively reduced, preventing sound transmission and reducing noise by more than 30dB.
⊙ Rich and colorful colors: After surface treatment with anodizing, powder coating, and fluorocarbon coating, aluminum profiles of different colors can be produced. After rolling and combination, the insulated aluminum alloy doors and windows produce dual color windows of different indoor and outdoor colors.
Production mode
There are two main production methods for insulation profiles. One is to use insulation strip materials and aluminum profiles to form an "insulation bridge" through mechanical processes such as tooth opening, strip threading, and rolling, known as the "strip threading" method for insulation profiles; Another method is to pour insulation material into the insulation cavity of aluminum alloy profiles, and after solidification, remove the broken bridge metal and other processes to form an "insulation bridge", which is called a "pouring type" insulation profile.
The inner and outer surfaces of insulation profiles can be profiles with different cross-sections or profiles with different surface treatments and colors. However, due to the influence of region and climate, it is important to avoid significant stress and gaps between insulation materials and aluminum profiles caused by the large difference in their coefficients of linear expansion during thermal expansion and contraction; At the same time, the insulation material and aluminum profile are combined into one, and in the structure of doors, windows, and curtain walls, they are also subjected to the same force as aluminum. Therefore, it is required that the insulation material must also have tensile strength, bending strength, expansion coefficient, 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.
