Device for injection molding of slurries
AssigneeImpac Technologies
InventorsClaude Quichaud, Pierre Guy Peytavin, Francois David
Life of this patent
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Abstract
A device for the production of a green from slurry by solidification after injection into a mold having a temperature of less than 0.degree. C. The device includes a mold having a jack wherein moveable parts of the jack ensure closure thereof and which are housed within a gas-tight vessel. A distributor for dry gas with a dew point lower then the temperature of the mold emits a gas current into the vessel through apertures. A chute conducts the green towards an exit aperture and to a receiving member outside the vessel.
Claims16
An apparatus for producing a green obtained by injection and solidification in a mold, brought to a temperature lower than 0.degree. C., of a slurry containing at least one of a metallic and non-metallic powder in suspension in a liquid, which comprises:
- a device for injecting said slurry into said mold;
- a gas tight vessel within which the mold is housed, the vessel having an outlet aperture in a wall thereof for passage of the green therethrough, the outlet aperture being one of continuously and discontinuously opened;
- an opening and closing mechanism housed in the vessel, said mechanism ensuring opening and closing of the mold and ejection of the green from the mold;
- and
- a gas supply distributor communicating with the interior of the vessel and supplying one of a continuous and discontinuous current of dry gas to the interior of a vessel, said dry gas having a dew point which is not greater than the temperature of the mold.
Dependencies are inferred from the claim text.