Apparatus for injection molding a ceramic greenware composite wi

Details Apparatus for injection molding a ceramic greenware composite wi Apparatus for injection molding a ceramic greenware composite wi

1991-11-12

1993-03-16

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

264 86, 264314, 425542, 425546, 425DIG44, B28B 124, B28B 126

Patent

active

051942682

ABSTRACT:
A method and apparatus for injection molding of ceramic suspensions is disclosed wherein an elastomeric bladder is disposed within a mold cavity of a mold. The elastomeric bladder, in a relaxed state, can be tubular or can be formed by bonding together sheets of material. A ceramic suspension is injected into the elastomeric bladder, whereby the elastomeric bladder is distended. Distention of the elastomeric bladder applies a significant force to the ceramic suspension for preventing jetting and formation of knit lines within the ceramic suspension. The ceramic suspension distends the elastomeric bladder until the mold cavity is filled. The ceramic suspension is then exposed to conditions sufficient to cause the injected ceramic suspension to form a molded ceramic greenware composite. The molded ceramic greenware composite can then be removed from the mold for drying and for debindering and densification to form a finished ceramic part.

REFERENCES:
patent: 1863854 (1932-06-01), Jeffrey
patent: 2513785 (1950-07-01), Browne
patent: 2783521 (1952-03-01), Vondrous et al.
patent: 2893102 (1959-07-01), Maxwell et al.
patent: 4031176 (1977-06-01), Molbert
patent: 4268475 (1981-05-01), Willmerding
patent: 4269890 (1981-05-01), Breitling et al.
patent: 4582682 (1986-04-01), Betz et al.
patent: 4612163 (1986-09-01), Nishio et al.
patent: 4761264 (1988-08-01), Nishio et al.
patent: 4822692 (1989-04-01), Koehler
patent: 4891081 (1990-01-01), Takahashi et al.
patent: 4927600 (1990-05-01), Miyashita et al.
patent: 4956141 (1990-09-01), Allen et al.

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