Aluminum alloy doors and windows represent the third generation of doors and windows after wooden and steel doors and windows. Their development has progressed from early single-layer aluminum doors and windows to colored aluminum doors and windows, and then to thermally broken aluminum alloy doors and windows. After 2000, my country gradually introduced thermally broken aluminum alloy insulation technology, including two different technical routes: injection-molded insulation profiles and strip-insulated profiles. This revolutionarily solved the problem of rapid heat conduction in aluminum alloys, leading to an increase in the market share of thermally broken aluminum alloy doors and windows.
The performance requirements for energy-saving doors and windows have expanded from focusing on thermal conductivity coefficients to comprehensively improving airtightness, watertightness, sound insulation, and other comprehensive performance. The application of architectural glass has also evolved from ordinary single-pane glass to double-pane, triple-pane, and Low-E insulated glass, among other energy-saving options. The penetration rate of smart aluminum alloy doors and windows is increasing, with products integrating remote control and automatic sensing functions, such as automatic closing based on wind and rain sensors and AI intelligent ventilation systems. To improve performance, technologies such as aerospace-grade thermally broken aluminum materials, high-polymer nano-silica gel-filled cavities, multi-cavity structures, and X-shaped thermal break strips are used.