Choose suitable plastic steel doors and windows fo

2022-07-22
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Plastic steel doors and windows are a new generation of door and window materials. They are rapidly replacing steel windows and aluminum alloy windows because of their high wind pressure resistance, good air tightness and water tightness, small air and rain infiltration, low heat transfer coefficient, heat preservation and energy conservation, sound insulation and heat insulation, and not easy to aging

plastic steel doors and windows are a new generation of door and window materials. They are rapidly replacing steel windows and aluminum alloy windows because of their high wind pressure resistance, good air tightness and water tightness, small air and rain infiltration, low heat transfer coefficient, heat preservation and energy conservation, sound insulation and heat insulation, and not easy to aging

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1. Structure of plastic steel doors and windows. Plastic steel doors and windows are mainly made of unplasticized polyvinyl chloride (PVC) plastic profiles in western languages, plus hardware for commuting. The profile is a porous cavity, and the main cavity is lined with steel made of cold rolled steel plate to improve the strength of plastic steel doors and windows. The wall thickness of the profile shall be more than 2.5mm

2. Manufacture of plastic steel doors and windows. Plastic steel doors and windows are generally manufactured in factories with special cutting and welding equipment for plastic steel doors and windows. They are semi-automatic and automatic production, and the quality can be guaranteed

3. Precautions for purchasing plastic doors and windows

(1) do not buy cheap plastic steel doors and windows. Good plastic steel doors and windows have high plastic quality, inner steel quality and hardware quality, and their service life can reach more than ten years. The profile used for cheap plastic steel doors and windows contains more than 50% calcium carbonate, and the additive contains lead salt, which has poor stability and affects human health. The lining steel is hot-rolled plate, which is not thick enough. Some even have no lining steel, and glass and hardware are also inferior products. The service life is only two or three years

(2) pay attention to surface quality. The plastic profiles on the surface of doors and windows are blue white or ivory white, clean, flat and smooth, with no scratches or bumps on the large surface, and no open welding or fracture at the welding joint. The surface of plastic steel doors and windows with good quality shall have protective film, which shall be torn off before users use

(3) pay attention to glass and hardware. The glass should be flat and free of water marks. Glass and plastic profiles are not in direct contact, and sealing strips are attached to the gap. The hardware is complete, in correct position, firmly installed and flexibly used

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