Abstract

An object is to provide a casting device that is capable of maintaining depressurization in a cavity. A casting device (1) is configured to move an extrusion pin (3), slidably inserted in an insertion hole (29) formed in a mold (2), into a cavity (20) in the mold to release a casted product. The casting device (1) includes a depressurized space creator (4) configured to create a depressurized space (40) on a reverse side of a cavity surface to define the cavity (20). The depressurized space creator (4) covers an opening of the insertion hole (29) to maintain depressurization in the cavity (20).

IPC Classes  ?

• B22D 29/04 - Handling or stripping castings or ingots
• B22C 9/06 - Permanent moulds for shaped castings
• B22D 18/06 - Vacuum casting, i.e. making use of vacuum to fill the mould

Abstract

The present invention addresses the problem of providing a casting device capable of further efficiently cooling a cavity. This casting device (1) casts a cast product (4) by pouring a melt into a cavity (20) formed in a mold (2). The mold (2) has: a cooling piece insertion hole (2a) which is recessed toward the cavity (20) and provided in a surface other than the surface in which the cavity (20) is formed; and a cooling piece (3, 31-34) inserted into the cooling piece insertion hole (2a). The cooling piece (3, 31-34) fits into the cooling piece insertion hole (2a) to form a cooling flow passage (30) between the cooling piece (3, 31-34) and an inner wall surface (2b) of the cooling piece insertion hole (2a), the cooling flow passage (30) causing a cooling medium (5) to flow therethrough.

IPC Classes  ?

• B22D 17/22 - DiesDie platesDie supportsCooling equipment for diesAccessories for loosening and ejecting castings from dies
• B22D 18/02 - Pressure casting making use of mechanical pressing devices, e.g. cast-forging
• B22D 18/04 - Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
• B22D 27/04 - Influencing the temperature of the metal, e.g. by heating or cooling the mould
• B22C 9/06 - Permanent moulds for shaped castings

Abstract

The present invention addresses the problem of providing a casting device with which it is possible for the inside of a cavity to be maintained in a reduced-pressure condition. A casting device (1) is configured such that a cast product is released by causing a pushing-out pin (3) inserted slidably into an insertion hole (29) formed in a die (2) to project into a cavity (20). The die (2) includes cavity surface (2a), and a reduced-pressure space forming body (4) for forming a reduced-pressure space (40) on the reverse side thereof. The reduced-pressure space forming body (4) is capable of maintaining the inside of the cavity (20) in a reduced-pressure condition by covering an opening portion of the insertion hole (29).

IPC Classes  ?

• B22D 17/22 - DiesDie platesDie supportsCooling equipment for diesAccessories for loosening and ejecting castings from dies
• B22D 18/06 - Vacuum casting, i.e. making use of vacuum to fill the mould
• B22D 29/04 - Handling or stripping castings or ingots
• B22C 9/06 - Permanent moulds for shaped castings