Effective maintenance method of PC solid sheet
time2018/06/11
Effective maintenance method of PC solid sheet
1. Before installation, be sure to lower the surface of the protective film with a printed logo.
2. Before installation, do not remove the protective film to prevent scratching the sheet during the installation process. Only lift the protective film about 50mm along the edge of the sheet. After the installation is completed, immediately remove the protective film. If it must continue
To protect the panel, first remove the film, and then cover and protect it again. Absolutely avoid using sharp tools to remove the protective film. Otherwise it may easily cause the panel to burst when it is bent.
3. When installing, use a neutral sealant, and be sure to check the special sealant that is compatible with the endurance plate before use. Do not use alkaline gels.
4, the endurance plate can be bent along the direction of the ribs into different bending radius of the arch, different thickness of the endurance plate cold bending minimum bending radius of 175 times the thickness of the plate, if the actual bending radius of the plate
When the bending is below the limit, the plate is extremely explosive, and the company does not provide any quality guarantee for the installation beyond the bending radius.
5. When the installation needs to drill holes in the plate, drill the holes first and then gradually expand to the required diameter. The size of the drill hole from the edge is not less than 40mm. The hole diameter is greater than 50% of the diameter of the bolt to
Adapt to the thermal expansion and contraction of the board.
6, board surface taboo contact with acid, alkaline substances and aggressive organic solvents, such as alkali, alkaline salts, amines, ketones, aldehydes, acids, ethers, halogenated hydrocarbons, acidic glass adhesive.
7, the plate can not be covered, overlapping installation. Due to the greater internal stress generated during the thermal expansion and contraction of the overlying plates, it is more likely to cause cracking and fracturing of the plates.
8, installation methods: see the installation instructions, there are the following points need special attention
A, outdoor installation or temperature difference of ± 8 degrees Celsius above, any bolts, rivets perforated, must increase the aperture, allow the temperature to expand the amount of thermal expansion and contraction. The general hole diameter must be greater than the bolt diameter
50%.
B. All holes should be filled with voids with neutral glue, and the exposed part should be coated with neutral glue to prevent the rivet head from directly pressing the board surface and reducing the pressure.
C, on the screw can not be too tight, or cause stress. Screws must be added with washers or washers to avoid localized large pressure damage to the board.
D. Do not use PVC gaskets and waterproof tapes containing asphalt.
E. For long and short sides, please add metal strips and reserve expansion gaps to strengthen the fixing force.
F, cold bending processing, the bending part to avoid using screws, otherwise it is easy to burst.
9. If there is jointing material, grease, paint, etc. attached, when contaminating the surface of the PC sheet, be sure to remove it with a soft cloth and dilute the alcohol before it is hardened. Do not use benzene, gasoline, acetone or carbon tetrachloride for cleaning.
When avoiding direct sunlight or forced bending, use solvent to clean, otherwise cracks will occur. Dust and dirt on the surface of PC board are usually wiped with a soft cloth or sponge with a neutral detergent and then cleaned.
Rinse the water thoroughly and dry it with a soft cloth.
10. Storage and transportation of PC boards:
During transportation, avoid placing heavy objects on the PC board, and do not touch the board with the sharps: Use the machinery for the loading and unloading of the coils, or use the vehicle's springboard to carefully unload. In addition, PC boards cannot be exposed outdoors
Store it in a cool place.
11, PC board cleaning:
Small area cleaning: rinse with warm water;
Rinse with warm water with a mild soap or household detergent, and remove dust and dirt with a soft fabric or sponge; rinse with cold water and dry with a soft cloth to remove the spots after drying.
Large area cleaning: flush with faucet or high pressure water gun;
Additions in water should be compatible with PC boards.
Cleaning precautions:
Do not polish or clean the PC board with strong alkali. Do not wipe the surface with a hard cloth or a hard brush to avoid pulling.
Do not use butyl cellosolve and isopropanol solution to clean UV-resistant PC boards.
Recommended cleaning solvent:
Anhydrous alcohol, petroleum ether, ethane, and hexane to avoid contact with PC plates with incompatible chemicals