Method for producing ceramic green compact and apparatus for producing the same
AssigneeMurata Manufacturing Co., Ltd.
InventorsTeppei Kubota, Naokatsu Fujinami
Life of this patent
Estimating the term…
Abstract
A separable die including a plurality of molding through holes is disposed in a recess in a cavity of a molding die. Slurry containing a ceramic powder and a solvent is supplied in the cavity. The slurry in the cavity is then pressed into the molding holes of the separable die by pressure due to a movement of a punch. Excess solvent is removed by suction by a stage for suction dewatering provided at the rear of the separable die thereby forming green compacts in the molding holes. Subsequently, the separable die is removed from the molding die. The green compacts are released from the molding holes of the separable die in a separate state.
Claims19
A method for producing a ceramic green compact comprising the steps of:
- disposing a separable die including a plurality of molding through holes in a cavity of a molding die;
- supplying the cavity of the molding die with slurry containing a ceramic powder and a solvent;
- forming a plurality of green compacts in the molding holes by pressurizing the slurry in the cavity by moving a punch provided in the molding die so as to press the slurry into the molding holes of the separable die, while the solvent is removed to the rear of the separable die;
- removing the separable die from the molding die;
- and
- releasing the plurality of green compacts from the molding holes of the separable die in a separate state.
An apparatus for producing a ceramic green compact comprising:
- a molding die including a cavity for receiving slurry containing a ceramic powder and a solvent;
- a separable die disposed in the cavity so as to be separated from the molding die, the separable die including a plurality of molding through holes;
- a punch that pressurizes the slurry in the cavity so as to press the slurry into the molding holes of the separable die, thereby forming green compacts in the molding holes;
- and
- a unit for removing the excess solvent in the slurry in the molding holes, the unit being provided at a position facing the punch.
Dependencies are inferred from the claim text.