(57) A mold for making tiles, which comprises an upper half-mold, which is composed of
a plurality of male plugs, and a lower half-mold, which is composed of a plurality
of complementary plugs (1) accommodated in respective receptacles (1b) of a die (1a)
which are aligned with respective male plugs, each complementary plug comprising a
base (2), a plate (5) which is associated with the base by a plurality of fixing means
(8) distributed along a peripheral line and has an upper face (6, 7) which forms the
bottom of the receptacle and a lower face which, together with the base, encloses
a chamber (13, 16) which is filled with an incompressible liquid and reaches the vicinity
of the peripheral line, the base (2) being provided with means (21-24; 35-45) which,
during pressing, cause a yielding of the peripheral region (26, 30) of the plate with
respect to its central region, so as to equalize the compaction of the powder over
the entire surface of the receptacles during pressing.
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