| 摘要 |
<p>An isostatic die for tile forming comprising a metal body (2) and an elastically deformable membrane (6, 6', 6") which is solidly gripped to the metal body (2) in a plurality of distinct predetermined fixing zones (25, 28, 290, 21, 22, 24', 24"), such that an intermediate hermetically sealed chamber is delimited between the elastic membrane (6, 6', 6") and the metal body (2), which chamber is destined to contain an incompressible fluid. Rigid bushings (5, 5") are sunk into the elastic membrane (6, 6', 6"), each of which rigid bushings (5, 5") is located at a fixing zone (25, 28, 290, 21, 22, 24', 24") of the elastic membrane (6, 6'. 6") to the metal body (2), and defines a breather mouth (52) which passes into a body of the elastic membrane (6, 6', 6") and which communicates with an outside environment through a system of discharge conduits (9) afforded in the metal body (2), each rigid bushing (5, 5") receiving a respective obturator body (7), which obturator body (7) enables passage of air and at least partially prevents passage of ceramic powder.</p> |
