How thick is the plate used to build a polycarbonate sheet?
time2018/07/06
How thick is the plate used to build a polycarbonate sheet?
I believe that many customers will ask, how many thick plates are used in greenhouses, and a complete set of engineering packages is not included? At this time, the customer service will tell him that the solar greenhouse in the greenhouse is generally 8mm, 10mm, 12mm, 14mm anti-fog sun board, or three-layer sun board. As for whether or not the package is installed, we have to look at the number of customers.
Sunshine plate greenhouse is mainly constructed with anti-fog drip sun plate (hollow plate), modern appearance, stable structure, beautiful appearance, smooth visual, excellent thermal insulation performance, moderate light transmittance, large span of rainy trough, large displacement and strong wind resistance. Suitable for areas with high wind and rainfall. There are many types of greenhouses. According to different truss materials, lighting materials, shapes and temperature conditions, the greenhouse structure should be sealed and insulated, but it should be easy to ventilate and cool. In modern greenhouses, there are equipment for controlling temperature and humidity, etc. Automatic control of the optimal conditions required to create a plant. The top cover is made of anti-UV anti-condensation polycarbonate hollow board, and the surrounding wall is made of polycarbonate hollow board or glass.
Common installation method
First, the embedded installation method
a. The protective film will affect the bonding of the joint filler and the hollow plate. Therefore, before inserting and installing, please remove the protective film with a thickness of 5-250px.
b. The thermal expansion and contraction coefficient of the plate is different from that of the support frame, and it is necessary to leave a margin to withstand wind pressure, snow pressure, etc., so the amount of embedding should be reserved sufficiently, and the space for thermal expansion and contraction. Generally, the edge of the sheet protrudes into the fixing frame by more than 25 mm, and at least two ribs are installed into the fixing area; the thermal expansion and contraction generally leaves a gap of 3 mm per meter. (The thermal expansion and contraction rate is 0.065mm/moc)
Second, the screw installation method
a. When the bolt or rivet is perforated, the opening diameter of the plate shall be 50% larger than the diameter of the bolt or rivet, and the space for thermal expansion and contraction shall be reserved.
b. All cavities should be filled with voids and covered with silicone sealant to prevent moisture or detergent from entering, affecting the quality of the sheet.
c. The head of the rivet should be 2 times larger than the handle, and a gasket should be added to avoid damage to the plate at a local pressure.
d. Screws should not be tightened too tightly to avoid fracturing plates
e. It is not advisable to use PVC gasket or waterproof tape with asphalt content
f. During cold bending, the bent part should be fixed with screws.
Third, PC plate curved plate installation
Ningbo Zhengshun sheet can be bent and installed according to the curved configuration, but the bending radius of the sheet should not be less than its minimum bending radius, so the stress introduced by bending will not affect the mechanical properties of the sheet. The sheet must be installed along the length and not in the width direction. It not only improves the lighting area, but also meets the bending requirements of architectural art design. Moreover, the bearing capacity of the sheet is improved, and ordinary glass is unattainable.