MANUFACTURE OF CERAMIC MOLDED FORM

    公开(公告)号:JPS6442205A

    公开(公告)日:1989-02-14

    申请号:JP18567588

    申请日:1988-07-27

    Applicant: BASF AG

    Abstract: PURPOSE: To produce a molding of the complicated shape with high productivity by mixing a ceramic powder with a molding additive in a solvent with a specific ratio, and injecting the mixture into a porous mold at a specific temperature under a specific pressure. CONSTITUTION: About 50-80 vol.% of ceramic powder deaggregated by using high-molecular weight water-soluble polymer as a molding additive, and the water as a solvent, by using a high-molecular weight water-soluble polymer including less than 5 mole % of ionogen content as the polymer, and alcohol as the solvent, or by using a high-molecular weight polyisobutylene as the polymer and an alphatic hydrocarbon as the solvent, is mixed with about 5-20 volume % of a solution. Then the mixture is injected into a porous gas-permeable mold which is at a temperature above the boiling point of the solvent, at a temperature lower than the boiling point of the solvent under from 100 to 1,500 bar, and the injection pressure is maintained until gas no loner escapes.

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