The installation of the PC board have what method?
( 1) Can be made according to the thickness, screw spacing, the appropriate configuration, spacing is too small and too much is not good. Such as the spacing is too small, sometimes stress caused by too tight, cause damage; Such as spacing is too big, and can make the PC board fixed instability. Therefore recommends to the spacing:
A: thickness of 3. 0 mm below, spacing of 50 ~ 60 cm
B: thickness of 3. 0 mm above, spacing is 60 ~ 80 cm
C: if the layering is fixed, the spacing is 60 ~ 80 cm
note: such as PC board, fixed directly with self tapping screw, the screw spacing, the greater the plate is not easy to damage due to stress.
( 2) PC board must be taken into consideration the size of the screw holes summer night heat bilges cold shrink and book. In general, the screw holes should be larger than the screw diameter at least 2 ~ 4 mm, to reserve expansion space
( 3) The location of the screw holes from the PC sunshine board edge is too close, very easy to cause broken board, in general, the position of the screw holes from the PC board edge for the screw hole diameter of 2. More than 5 times. For example, the diameter of 4 mm screw, the screw holes position at least to have more than 1 cm away from the PC board edge.
( 4) Do not lock the screw is too tight, otherwise produce deformation, and stress.
( 5) Lock the screw on the PC analysis had better not choose self tapping screw, otherwise produce stress, and stress at the plate thickness increases.
( 6) To reduce the pressure of screw with material directly, can use gaskets pad during filling, but PVC washer and some rubber ring damage PC board, do not use. Recommend the use of the gasket material for epdm like rubber, silicone rubber and neoprene.
the above is our small make up for your introduction about the PC board installation method, the introduction of hope we can help you, if you want to learn more about the knowledge of the PC board, you can visit our website, we will provide you with more professional information.
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