Thermal Break Aluminum Profile is a composite structure that isolates the inner and outer aluminum alloy profiles through polyamide insulation strips, which significantly improves the thermal insulation performance of building doors, windows, and curtain walls.
1. Structural design and technical principles Double-layer aluminum + insulation strips: The inner and outer aluminum profiles are mechanically connected by high-strength PA66 insulation strips to form a "broken bridge" structure, blocking about 60% of the heat conduction path. Hollow cavity filling: Some high-end profiles inject insulation foam materials into the hollow cavity to further reduce the heat transfer coefficient to below 1.0 W/(m²·K). 2. Core functions and advantages High-efficiency insulation: Compared with ordinary aluminum profiles, the thermal conductivity is reduced by 40-70%, which can reduce the energy consumption of building air conditioning by about 30%. Anti-condensation: The surface temperature of the indoor aluminum profile is close to room temperature to avoid condensation in winter. Structural strength: The tensile strength of PA66 insulation strips is ≥80 MPa, ensuring that the composite profile does not deform under wind pressure (≥2000 Pa).
3. Typical application scenarios Broken bridge aluminum casement windows, sliding doors, curtain wall systems, enclosure curtain walls, interlayer curtain walls, cold storage insulation doors, industrial windows for high humidity environments
4. Materials and manufacturing standards Insulation strip standards: PA66+GF25 materials must comply with ISO 14632 anti-aging test (temperature resistance range -50℃~120℃). Aluminum profile specifications: The wall thickness of the main profile is ≥1.8mm (national standard GB/T 8478-2025), and the surface treatment includes anodizing (film thickness ≥15μm) or powder spraying.
