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Patent Searching and Data


Title:
MANUFACTURE OF CERAMICS GREEN SHEET
Document Type and Number:
Japanese Patent JPH03254905
Kind Code:
A
Abstract:

PURPOSE: To prevent the occurrence of pin-holes in a ceramics green sheet by ultrasonically-vibrating a slurry bath that contained slurry therein, and giving defoaming treatment to the slurry.

CONSTITUTION: A slurry bath 1 is attached with a supersonic oscillator 13 being constituted of a ceramics piezoelectric body or the like and, immediately after the slurry 3 is transported, or in the case wherein bubbles occur in the slurry 3 through the temperature change of the slurry 3, by ultrasonically vibrating the lower surface and side surface of the slurry bath 1, the bubbles adhered to the lower surface and side surface or the bubbles suspended in the slurry 3 are floated to the level of the slurry 3 in a short time so that they are vanished or bubble-break vanished therein. Whereby, the bubbles contained in the slurry are taken in the ceramics green sheet, and thus prevented from becoming pin-holes.


Inventors:
ISHIMORI MASAKI
Application Number:
JP1990000052838
Publication Date:
November 13, 1991
Filing Date:
March 06, 1990
Export Citation:
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Assignee:
ONODA CEMENT CO LTD
International Classes:
B28B1/30; (IPC1-7): B28B1/30