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Correct installation method of endurance board

by:UNQ     2021-03-05
u003cbru003eu003cpu003e First check the skeleton, it must be flat, without welding scars and burrs. The skeleton must be thoroughly dried and free of volatile solvents. When installing the arch, the endurance board can be bent in both directions, and the bending radius cannot be greater than 180 times the thickness of the board. According to the plate thickness, thermal expansion and contraction conditions and the support frame, and wind pressure, snow pressure load, etc., reserve a sufficient amount of embedding. Generally, the edge of the plate extends into the fixed frame for more than 25MM, and the thermal expansion rate is 0.065MM/M.0℃. According to the local climate conditions and the temperature at the time of installation, determine the reserved thermal expansion distance between the board and the board. Generally, the space reserved for installation in summer can be less; for installation in winter, the reserved space should be larger. For embedded installation, the plate length should not be too long. (Generally leave 2-5CM in the width direction and (0.5-1.5MM/M*total length) in the length direction. The protective film will affect the combination of the joint filler and the PC sheets. Therefore, before installation, it is required to remove the fixed part and surroundings 10CM protective film, and then do the second film, until the completion of the project before removing. Note: Some workers clamp the protective film in the template during operation, and then use a sharp tool to mark and then lift, but often scratch the board To prevent the impact of ultraviolet rays on the board, the protective film on the side with the UV layer on the board is printed with a logo, and it must be facing the sun when installing. It is forbidden to walk directly on the board. On the one hand, it is not safe, on the other hand it is easy to damage Plate.u003c/pu003eu003c/pu003eu003cpu003e For drilling holes in the plate, the distance between the holes and the holes should not be too large or too small. Large distances will increase the accumulated thermal expansion length, and the reserved space will not be enough; small spacing must Severely restrict the movement of the plate, resulting in a large stress concentration. If it is allowed to bend outward during thermal expansion, part of the stress can be offset. Generally, the hole spacing of 50CM is suitable for drilling on the plate, and the distance between the hole and the edge of the plate is recommended to be 3-5CM Above. The diameter of the rivet head should be 2 times larger than the diameter of the shank, and a gasket or washer should be added to avoid damage to the plate due to high pressure locally. When installation defects are found, the parts that may leak can be filled Sealant is used to make up, such as the joints of the sealing rubber pads at both ends of the water facing surface. It is necessary to use neutral weather-resistant silicone rubber that remains soft after curing, low modulus, and elongation greater than 50%, and aluminum profiles must be used before applying glue And the surface of the board is clean and dry, so that there is no oil, dust, moisture, dew and other debris, the glue is evenly applied, the surface of the glue layer is smooth, and the cross-sectional size is uniform and there must be no discontinuity;u003c/pu003eu003cpu003eu003c /pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003e
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