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What is the relationship between the selection of the sun board type and the lap fixing method of the board?

by:UNQ     2021-03-03
u003cbru003eu003cpu003eWhat is the connection between the selection of the sun board type of the sun board manufacturer and the lap fixing method of the board? In order to meet different usage requirements, the types of sun panels required are also different. If it is used as a lighting belt, its specifications are basically similar to color steel plates; but if it is used as a skylight, it is necessary to pay attention to the sandal strips. The distance should not be too large, so as not to cause deformation of the solar panel and cause water leakage. u003c/pu003eu003cpu003e   After determining the type of sun board, it needs to be overlapped with various materials in different ways. For example, if the side of the sun board is overlapped with ordinary color board, it is recommended to press on the sun board The bead can be made of stainless steel or aluminum alloy. The width of the bead is about 30mm. It is more ribbed from the side, and the thickness is greater than or equal to 0.5mm. It is better to add support at the overlap. u003c/pu003eu003cpu003e   If the sun board is overlapped with the sandwich composite board, support should be added at the screw fixing point to better fix the sun board; in the case of overlap with the sandwich board, the sandwich board needs to be overlapped The foam is dug out, and then the sun board can be put on the front. u003c/pu003eu003cpu003e   is followed by the fixation of the sun board. It is required that the diameter of the nail head of the fixing nail should be more than 1.5 times larger than the diameter of the screw handle, and waterproof glue should not be used to directly press the nail head on the board surface to reduce the pressure; And do not tighten the screws too tightly, otherwise it may cause stress and cause local cracks on the board. u003c/pu003eu003cpu003eDuring the installation process of   polycarbonate sheet, do not fix both ends first and then fix the middle. You should fix one end first and work in the same direction, otherwise it will cause the middle stress concentration and cause the product to deform or crack. Since the linear expansion coefficient of the plate is much larger than that of metal materials, when fixing, the holes must be drilled on the sun board before being fixed with self-operating screws, and the self-operating screws must be punched in the middle of the aperture, otherwise the heat will expand and contract. Time displacement and insufficient reserve may cause cracks on the PC sheets around the self-working screw or shrinkage and deformation of the cotton cloth. u003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003eu003c/pu003e
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