What is a UPVC window？

What are plastic steel doors and windows

Plastic UPVC doors and windows are made of polyvinyl chloride (uPVC) resin as the main raw steel, plus a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers, etc., are extruded, and then cut, welded or screwed. The door and window frame fan is made, equipped with sealing strips, wool strips, hardware, etc. At the same time, in order to enhance the rigidity of the profile, the cavity of the profile exceeding a certain length needs to be filled with steel lining (reinforcing ribs). It is called plastic steel doors and windows.

At present, there are many types of plastic steel doors and windows, which are classified according to the opening method: casement windows, casement doors, sliding windows, sliding doors, fixed windows, rotating windows, etc.

Classification by structure: single glass, double glass doors and windows.

Classified by color: single color (white or color), double color (co-extrusion, lamination or spray).

Second, the performance and characteristics of plastic steel doors and windows

1. Thermal insulation and energy saving

The multi-cavity structure of plastic-steel profiles has good thermal insulation performance and extremely low heat transfer coefficient, which is only 1/4.5 of that of steel lining and 1/8 of that of aluminum. Its economic and social benefits are huge.

2. air tightness

Plastic UPVC doors and windows are equipped with rubber and plastic sealing strips and wool strips at all gaps during installation, so their air tightness is much higher than that of aluminum alloy doors and windows. The air tightness of the plastic steel casement window is higher than that of the sliding window. In general, the air tightness of the casement window can reach the fourth level, and the sliding window can reach the third level.

3. water tightness

Due to the unique multi-chamber structure of the plastic-steel profiles, there are independent drainage chambers, and the accumulated water of both the frame and the fan can be effectively discharged. The water tightness of plastic steel casement windows is much higher than that of sliding windows. In general, the water tightness of casement windows can reach five grades, and the sliding windows can reach three to four grades.

4. wind resistance

In the independent plastic-steel cavity, a steel lining with a thickness of 1.2-3mm can be filled. The thickness of the reinforcing bars and the series of profiles 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 type to ensure Building requirements for doors and windows. Generally, high-rise buildings can choose large-section sliding surface sliding windows or inner casement windows, and the wind pressure resistance can reach more than six degrees.

5. sound insulation

The plastic-steel profile itself has a good sound insulation effect. If the double-glass structure is used, the sound insulation effect is more ideal, especially suitable for places with serious noise interference in downtown areas, such as hospitals, schools, hotels, office buildings, etc.

6. Corrosion resistance

Plastic-steel profiles have a unique formula and good corrosion resistance, so the corrosion resistance of plastic-steel doors and windows mainly depends on the choice of hardware, such as anti-corrosion hardware, stainless steel, and its service life is about 10 times that of steel windows. .

7. Weather resistance

The plastic-steel profile adopts a unique formula to improve its cold resistance. Plastic steel doors and windows can be used in environments with large temperature differences (-50℃～70℃) for a long time. Sun exposure and humidity will not cause deterioration, aging, embrittlement and other phenomena. The earliest plastic steel doors and windows have been used for 30 years. The material is in good condition as before. According to this calculation, the service life of plastic steel doors and windows can reach more than 50 years under normal conditions.

8. Fire resistance

Plastic UPVC doors and windows are non-flammable, non-combustible, self-extinguishing, safe and reliable. The oxygen index detected by the Liaoning Provincial Fire Equipment Product Quality Supervision and Inspection Station is 42.3, which conforms to GB8814-1988 "Rigid Polyvinyl Chloride (U-PVC) Profiles for Door and Window Frames" The oxygen index specified in the requirement is not less than 38 degrees.

9. Insulation

The plastic-steel profiles used in the plastic-steel doors and windows are excellent electrical insulating material steel, which is non-conductive and has a high safety factor.

10. The finished product has high dimensional accuracy and no deformation

The plastic-steel profiles are of uniform quality and smooth surface, no need for special surface treatment, easy to process and cut, and the length, width and diagonal tolerances of the finished product can be controlled within 2mm after welding; the processing precision is high, and the strength of the welding angle can reach 3000N Above, at the same time, the welding part is cleaned to remove the welding flash, and the surface of the profile welding part is smooth and beautiful.

11. easy to protect

Plastic UPVC doors and windows will not be eroded, and will not turn yellow and fade, and will not be affected by ash, cement and adhesives, and almost no maintenance is required.

12. Anti-theft

The glass strips of the plastic-steel doors and windows are all facing the room, and the glass is easy to be replaced.

13. Affordable price: Compared with aluminum windows, wooden windows and steel windows that achieve the same performance, the Huge of plastic-steel doors and windows is more economical.

Plastic steel doors and windows have excellent physical and chemical properties, and can be widely used in places with harsh environments such as wind, rain, high heat, high cold and corrosive gases. They are ideal and reliable building doors and windows.