Casting mould

Details Casting mould Casting mould

B - Operations, Transporting

22

C

22/72

B22C 9/08 (2006.01) B22D 18/04 (2006.01) B22D 27/13 (2006.01)

Patent

CA 1221222

ABSTRACT OF THE DISCLOSURE: A casting mould for bottom pourring from a sealed chamber with molten metal under the action of a gas pressure difference, which comprises respective shaping blocks, forming the cavity for the casting, and a gating system for the supply with molten metal. The gating system comprises a gas-tight runner, connected with the mould cavity via an overflow-feed conduit, which is gas-permeable during the filling of the mould cavity and becomes gas-tight after the filling. In the overflow-feed gate there is formed a lining conduit between the shaping blocks and a distance insert, which is provided with through holes. On the external side of the gas-tight runner there is formed a sealing surface by which the casting mould is connected through a seal to a movable feed tube, disposed in a sealed chamber with molten metal.

456970

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