Plastic doors and windows are doors and windows made of U-PVC plastic profiles. Plastic doors and windows have good characteristics such as wind resistance, waterproofness, and heat preservation.

Classification

According to the material, they can be divided into PVC plastic doors and windows and glass fiber reinforced plastic (FRP) doors and windows.

1.1PVC plastic doors and windows

1) Among all types of building windows, PVC plastic windows have outstanding advantages in saving energy consumption in profile production, reuse of recycled materials and energy consumption, and have excellent performance-price ratio in terms of heat preservation and energy saving.

2) In order to increase the rigidity of the window, in the load-bearing rods of the window frame, window sash, and stile profiles, it should be determined according to the design of wind pressure resistance and other use requirements.

3) Through the co-extrusion of UPVC resin and colored polymethyl methacrylate (PMMA) or acrylonitrile-styrene-acrylate copolymer (ASA), as well as coating and spraying on white profiles, a variety of textures and surface colors can be obtained. In addition, there is also a body dyeing technology that adds colorants to UPVC resin powder and mixes and extrude. However, there are still different opinions on this technology, so it should be particularly cautious when selecting it, and the color change of this type of profile after artificial accelerated aging test should be checked. It is recommended to cover the body dyed profile with a film of the same color to improve its weather resistance.

1.2 Glass fiber reinforced plastic (FRP) doors and windows

1) Foreign countries use alkali-free glass fiber for reinforcement, and the surface finish of the product is good. It can be directly used for window making without treatment. The FRP door and window profiles independently developed by China are generally reinforced with medium-alkali glass fiber. After the surface of the profile is polished, it can be electrostatically sprayed with powder, surface coated with film and other technical processes to obtain a variety of colors or textures. Decorative effects.

2) High-alkali glass fiber shall not be used to make profiles.

3) FRP door and window profiles have high longitudinal strength, and generally, reinforced steel is not required. However, when the size of the door and window is too large or the wind pressure resistance requirement is high, the reinforcement method should be determined according to the use requirements. The profile has low transverse strength. The FRP door and window frame corner mullion connection is assembled, and the connection needs to be sealed with sealant to prevent gap leakage.

Performance Description

1. Wind pressure resistance performance: The ability of closed external doors and windows to not be damaged or functionally impaired under wind pressure.

2. Water tightness: The ability of closed external doors and windows to prevent rainwater leakage under the simultaneous action of wind and rain.

3. Air tightness: The ability of closed external doors and windows to prevent air infiltration.

4. Air infiltration per unit seam length: The amount of air passing through the unit seam length per unit time under standard conditions of external doors and windows, in units of m3/m¡¤h.

5. Thermal insulation performance: The ability of a door or window to resist heat transfer from the high temperature side to the low temperature side under the condition of air temperature difference on both sides of the door or window. The thermal insulation performance of a door or window is expressed by its heat transfer coefficient or heat transfer resistance.

6. Heat transfer coefficient K0: Under stable heat transfer conditions, the air temperature difference on both sides of the door or window is 1K (absolute temperature). The amount of heat transferred per unit area per unit time is measured in W/m2¡¤K.

Implementation standards

3.1PVC plastic doors and windows

JG/T140-2005 "Unplasticized polyvinyl chloride (PVC-U) plastic windows"

JG/T180-2005 "Unplasticized polyvinyl chloride (PVC-U) plastic doors"

JG/T176 "Plastic doors and windows and profile functional structure dimensions"

3.2 Glass fiber reinforced plastic (FRP) doors Window

JG/T185-2006 "Glass Fiber Reinforced Plastic (Fiberglass) Door"

JG/T186-2006 "Glass Fiber Reinforced Plastic (Fiberglass) Window"

3.3 Mechanical properties see standard JG/T140 "PVC Plastic Suspended Window"

Difference

Plastic steel doors and windows are made of plastic steel profiles, which are made of mixed profiles of plastic and steel.

Plastic doors and windows use U-PVC plastic

Specifications

The size of the door and window openings should comply with the provisions of GB/T5824 "Building Door and Window Opening Size Series".

Engineering standards

JGJ113-2003 "Technical code for application of architectural glass"

JGJ75-2003 "Energy-saving design standard for residential buildings in hot summer and warm winter areas"

JGJ134-2001 "Energy-saving design standard for residential buildings in hot summer and cold winter areas"

GB50352-2005 "General design rules for civil buildings"

GB/T50378-2006 "Green building evaluation standard"

GB50096-1999 (2003 edition) "Residential Design Code" GB/T50362-2005 "Residential Performance Evaluation Technical Standard" GB50189-2005 "Public Building Energy Saving Design Standard" GB50210-2001 "Architectural Decoration and Renovation Engineering Quality Acceptance Code" JGJ26 "Civil Building Energy Saving Design Standard" Maintenance Tips 1. Clean the dust on the doors and windows regularly to keep the doors and windows, glass and hardware clean and bright. 2. If the doors and windows are contaminated with oil stains and other things that are difficult to clean, you can use Jie Erliang to scrub them, but it is best not to use strong acid or strong alkali solutions to clean them, which will not only easily damage the surface finish of the profile, but also destroy the protective film and oxide layer on the surface of the hardware and cause rust on the hardware. In particular, when some customers use sulfuric acid to clean the wall, be careful not to let the doors and windows be contaminated.

3. Granular and other debris inside the frame should be cleaned up in time to prevent them from blocking the drainage channel and causing poor drainage and water leakage.

4. When opening doors and windows, the force should be moderate, and the speed of opening and closing should be kept uniform.

5. Try to avoid hitting doors and windows with hard objects or scratching the surface of profiles.

6. If it is found that the doors and windows are not flexible to open or other abnormal conditions during use, the cause should be found in time. If the customer cannot eliminate the fault, he can contact the door and window manufacturer and supplier so that the fault can be eliminated in time.

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