Major function of upvc sliding doors:
1. Heat preservation and energy saving: The multiple-cavity structure of plastic-steel profile has good heat insulation performance and low heat transfer coefficient, which is only 1/357 of steel and 1/1250 of aluminium. Its economic and social benefits are enormous.
2. Air tightness: All the cracks in the installation of plastic steel doors and windows are equipped with rubber and plastic sealing strips and wool strips, so the air tightness is much higher than that of aluminum alloy doors and windows. The air tightness of plastics steel flat door and window is higher than that of push-pull window. Generally speaking, the air tightness of flat windows can reach five levels and that of push-pull windows can reach two levels.
3. Water tightness: Because of the unique multiple-chamber structure of plastic-steel profiles, they all have independent drainage chambers, and the accumulated water of both frames and fans can be effectively discharged. The water tightness of plastics steel flat window is much higher than that of push-pull window. Generally, the water tightness of flat window can reach five levels, and push-pull window can reach three to four levels.
4. Wind pressure resistance: 1.5-3MM thick steel lining can be filled in the independent plastic cavity, and the thickness and profile series of plastic steel can be selected according to the local wind pressure value, the height of the building, the size of the opening and the design of the window, so as to ensure the requirements of the building for the profile doors and windows. High-rise buildings can choose large section push-pull windows or inner flat windows. Wind compress strength can reach more than six levels. Low-rise buildings can choose flat window or small section push-pull windows. Wind compress strength is generally in three levels.
5. Corrosion resistance: Plastic steel profiles have unique formula and good corrosion resistance, such as anti-corrosion hardware and stainless steel profiles, whose service life is about 10 times that of steel windows.
6. Weather ability: Plastic steel profiles use unique formula to improve their cold resistance. Plastic steel doors and windows can be used in the environment with large temperature difference for a long time (-50 ~70 C). No deterioration, aging will occur in the hot sun and humidity. The earliest plastic steel doors and windows have been used for 30 years, and their materials are as good as before. According to this calculation, the service life of plastic steel doors and windows under normal conditions can reach more than 50 years.
All the accessories of the door: