Plastic steel window is the fourth generation of new window developed from wooden window, steel window and aluminum alloy window in recent years. Its opening method mainly includes push-pull, outer opening, inner opening, inner opening and hanging, etc. The new opening method has push-pull upper hanging type.

Different opening methods have different characteristics. The sliding window has the advantages of simple and beautiful façade, flexible use, safety and reliability, long service life, large lighting rate, small space occupation and convenient screen screen. The outer opening window has the advantages of large opening surface, sealing property, ventilation and air permeability, excellent thermal insulation and impermeability. At present, the push-pull type is used more, followed by the open type.

So how should we buy plastic steel windows? The following points are for your reference:

1. First of all, you should understand the PVC profiles selected for plastic steel windows. PVC profiles are the decisive factor for the quality and grade of plastic steel windows. Good PVC profiles look smooth and white in appearance. The middle and low-grade profiles are yellowish in white and have poor sun protection. After a few years, they will become yellower until they age, deform and crack.

2. Observe the surface of the plastic steel window for obvious scratches, grooving, cracks at the corners, etc.; for outdoor noise, it is best to use plastic-steel windows with insulating glass for excellent sealing and sound insulation; When the window is closed, there is no gap between the fan and the frame, and the plastic steel window should be slid freely, the sound is soft, and no dust falls off.

3. There should be steel frame in the frame of plastic steel window. The glass should be installed flat and firm and not directly contact with the profile. If it is double-layer glass, there should be no dust and water vapor in the interlayer, and the components of the switch are tight and flexible.

4. Pay attention to whether the plastic steel window joint structure and the window area are proportional to the design requirements. If it is not proportional, consider whether the bearing capacity is reasonable.

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