Patent ID: 6705382
Filing Date: 2004-03-16
Classification: B22C

Abstract:
Method of improving the mould quality of a mould-forming machine comprising at least one moulding chamber with oppositely positioned and movable squeeze plates, in which the mould-forming process comprises the steps ofa) filling the at least one moulding chamber with compressible mould material, b) pressing the mould material between the squeeze plates, c) opening the at least one moulding chamber by moving at least one of the squeeze plates, d) removing the produced mould or mould parts from the at least one moulding chamber and e) reclosing the at least one moulding chamber by moving at least one of the squeeze plates, so as to be ready for a new cycle starting from step a), characterized by comprising the further step of: a1) moving the at least one squeeze plate in a direction reducing the volume of the at least one moulding chamber during at least part of the filling step a).