Method for manufacturing ceramic formed body, and apparatus for manufacturing ceramic formed body
AssigneeNGK Insulators, Ltd.
InventorsYuichi Tajima, Kensuke Okumura, Seiichiro Hayashi
Life of this patent
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Abstract
A manufacturing method includes: a dry mixing step of dry mixing a raw material by batch processing; a wet mixing step of adding liquid to a dry mixture obtained at the dry mixing step, the liquid including at least one type of water, surfactant, lubricant and plasticizer, while wet mixing; a kneading step of kneading a wet mixture obtained at the wet mixing step; and a forming step of extruding a kneaded mixture (forming raw material) obtained at the kneading step to make a ceramic formed body. In the kneading step, the liquid is further added during kneading of the wet mixture.
Claims3
A method for manufacturing a ceramic formed body, comprising:
- a dry mixing step of dry mixing a raw material to make the ceramic formed body by batch processing;
- a wet mixing step of adding liquid to a dry mixture obtained at the dry mixing step, the liquid including at least one type of water, surfactant, lubricant and plasticizer, while wet mixing;
- a kneading step of kneading a wet mixture obtained at the wet mixing step;
- and
- a forming step of extruding a forming raw material obtained at the kneading step,
- wherein in the kneading step, the liquid is further added during kneading of the wet mixture, and
- wherein an amount of the liquid added at the wet mixing step is 60 to 90 mass % with respect to a total additive amount of the liquid added at the wet mixing step and the kneading step.
Dependencies are inferred from the claim text.