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Sunshine board screw installation method

by:UNQ     2021-05-24

(1) The screw spacing can be appropriately configured according to the thickness of the board. Too small or too large a spacing is not good. If the distance is too small, sometimes it will cause stress and damage due to being too tight; if the distance is too large, the PC board may be unstable. For this reason, the lower spacing is recommended: Note: If the PC board is directly fixed with self-tapping screws, the larger the screw spacing, the less likely the board will be damaged due to stress. (2) The size of the screw hole must take into account the difference between the PC board in summer and winter and the thermal expansion and contraction of the book night. Generally speaking, the screw hole diameter should be 2~4mm larger than the minimum screw diameter to reserve room for expansion; (3) When the screw hole is too close to the edge of the PC board, it is very easy to cause the board to break. Generally speaking, the screw hole The position from the edge of the PC board is more than 2.5 times the diameter of the screw hole. For example, for a screw with a diameter of 4mm, the position of the screw hole should be at least 1cm away from the edge of the PC board.

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