What are the problems in construction with particle/fibre board?
Ans-:
The
limitations are as below.
a]
Since particle boards have no fibres, the screw holding strength is poor with
either the wood screw or conventional fine thread metal screws. In fibre board,
even if the fibres are present, these are short and lie randomly. Hence there
is no possibility of adequate fibre entanglement with the screw threads.
b] Hence for the particle/fibre boards,
special screws are used. These screws have straight shank and the threads are
coarse. Even with these special screws, the strength is not as good as the wood
screw or the metal screw in plywood.
c] The screw fitment on the edge of the
particle/fibre board has severe limitations. However, the screw can be fitted
across the plane of the board.
d] Nails have
virtually no holding power in particle board fitments.
e] These limitations warrant us to
use only special fittings where the screw fitment is across the plane of the
board.
f] High accuracy is needed while
working with particle/fibre boards. Hence machines and sophisticated tools
are needed. Manual working with hand tools may not give satisfactory results.
g] Particle/fibre board is heavier
than plywood.
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