Slip casting mold

Details Slip casting mold Slip casting mold

1988-01-26

1989-09-19

Housel, James

Plastic article or earthenware shaping or treating: apparatus

With foraminous or absorbent means for removal of vehicle or...

Vacuum means

249 661, 249109, 249113, 249134, 249141, 425 84, 425437, 425DIG30, 425DIG119, 264 49, 264 87, 264225, 264344, B28B 126, B29C 4116

Patent

active

048676624

ABSTRACT:
A mold (1) for cast-molding a slip is provided, which comprises a divsible casting mold including a plurality of mold portions to form a mold cavity (4) when mated together; each mold portion including an air-tight housing (2), an intermediate layer (5) of coarsely porous structure adjacent to the air-tight housing (2), and a solid synthetic resin filter layer (3) of fine open-cell structure; a slip supply duct (8) being connected with said mold cavity (4) and communicated with the outside of the air-tight housing (2); a fluid-flowing duct (9) being connected with said coarse intermediate layer (5) and communicated with the outside of the air-tight housing (2); said filter layer (3) being permeably joined to the coarse intermediate layer (5), and having substantially precise shape and dimension of substantially uniform fine open-cell structure. Such a filter layer (3) is produced by molding a flowable emulsion material comprising by weight about 100 parts of a curable synthetic resin material, about 1 to about 30 parts of a non-ionic emulsifier, about 1 to about 200 parts of water, and about 50 to about 600 parts of filler particles, into a cured filter layer; and uniformly eluting with a solvent an emulsifier-based viscous substance finely dispersed in the cured resin layer, and further curing the resin layer.

REFERENCES:
patent: 3243860 (1966-04-01), Whittaker et al.
patent: 3256219 (1966-06-01), Will
patent: 3859421 (1975-01-01), Hucke
patent: 3929685 (1975-12-01), Jung
patent: 4531705 (1985-07-01), Nakagawa et al.
patent: 4727092 (1988-02-01), Will

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