The invention relates to an aluminum plastic combined section for high-energy-saving heat-preservation
doors and windows. The aluminum plastic combined section for the high-energy-saving heat-preservation
doors and windows comprises an aluminum plastic combined flat-opening frame structure and an aluminum plastic combined
mullion structure, wherein the aluminum plastic combined flat-opening framestructure is of an L-shaped structure formed by an inner-side multi-cavity aluminum plastic combined flat-opening frame plastic profiled bar, an outer-side aluminum plastic combined flat-opening framebridge-cutoff aluminum
alloy section and a
fastener; and the aluminum plastic combined
mullion structure is of a T-shaped structure formed by an inner-side multi-cavity aluminum plastic combined
mullion plastic profiled bar, an outer-side aluminum plastic combined mullion bridge-cutoff aluminum
alloy section and a
fastener. According to the aluminum plastic combined section for the high-energy-saving heat-preservation
doors and windows provided by the invention, an aluminum material and a plastic material are mainly utilized for manufacturing a multi-cavity structure, a convex-concave structure design is combined with the outer fasteners, the whole doors and windows achieve a
high energy-saving performance of plastic profiled bar doors and windows and high strength and
corrosion resistance of bridge-cutoff aluminum
alloy doors and windows after assembling, and meanwhile, the sales unit price is lower than the price of the bridge-cutoff aluminum alloy doors and windows, so that the aluminum plastic combined section for the high-energy-saving heat-preservation doors and windows is a trend product for old house modification and new house decoration in the future.