Plastic and nonmetallic article shaping or treating: processes – Removal of liquid component or carrier through porous mold...
Patent
1985-04-02
1987-04-21
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Removal of liquid component or carrier through porous mold...
264317, 419 40, 419 66, B28B 126
Patent
active
046595260
ABSTRACT:
In a forming method and a mold wherein a slip is cast into the mold and wherein the mold is removed after hardening of the slip, the mold is patterned by the use of a water-soluble binder. The mold absorbs a water content in the slip to soften and to become easy of removal, while the slip has the water content absorbed to harden promptly. Therefore, the forming method and the mold are especially suited to produce a cast article of complicated shape.
REFERENCES:
patent: 3997640 (1976-12-01), Walton
Votava et al, Microstructures and Properties of Permeable Mold Materials, Ceramic Bulletin, vol. 58, No. 2 (1979) pp. 144-196 & 200.
Koike Keiichi
Natori Tatsuo
Shimaguchi Takashi
Watanabe Akihide
Derrington James
Hitachi , Ltd.
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