There are two main ways to produce heat-insulating profiles. One is to use heat-insulating strips and aluminum profiles to form "insulation bridges" through mechanical tooth opening, strip-piercing, and rolling processes. Another type is to inject a heat-insulating material into the heat-insulating cavity of an aluminum alloy profile, and then solidify and remove the broken bridge metal to form a "heat-insulating bridge", which is called a "cast-type" heat-insulating profile. The inner and outer sides of the heat-insulating profile can be profiles with different cross-sections or different color profiles with different surface treatment methods. However, due to the influence of region and climate, avoid large gaps between the linear expansion coefficients of the thermal insulation material and the aluminum profile, resulting in large stress and gap between the two during thermal expansion and contraction; meanwhile, the combination of the thermal insulation material and the aluminum profile Integrate, in the door and window and curtain wall structure, the same force as aluminum. Therefore, it is required that the thermal insulation material has tensile strength, flexural strength, expansion coefficient, and elastic modulus close to those of aluminum alloy profiles, otherwise the thermal insulation bridge will be broken and destroyed. Therefore, the selection of thermal insulation materials is very important.
advantage:
1. Good thermal insulation: PA66 nylon in broken bridge aluminum profile has low thermal conductivity
2. Good sound insulation: its structure is carefully designed with tight joints. The test results show that the sound insulation is 30 db.
3. Impact resistance: Since the outer surface of the broken bridge aluminum profile is aluminum alloy, it is more impact resistant than plastic steel window profiles.
4. Good air-tightness: Multiple sealing tapes are installed in the gaps of the aluminum bridge window of the broken bridge, which has good air-tightness.
5. Good water tightness: The doors and windows are designed with rain-proof structure to isolate rainwater from the outdoors.
6, good fire resistance: aluminum alloy is a metal material, does not burn.
7, good anti-theft properties: broken bridge-type aluminum alloy windows, equipped with excellent hardware accessories, making thieves helpless
8. Maintenance-free: Broken bridge aluminum alloy window profiles are not susceptible to acid and alkali erosion, will not turn yellow and fade, and require almost no maintenance.
