Ceramic material for injection molding and method of injection m

Details Ceramic material for injection molding and method of injection m Ceramic material for injection molding and method of injection m

1989-12-22

1992-02-11

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 94, 501 98, 501103, 106272, 264319, 2643281, 425543, C04B 3558, C04B 3548

Patent

active

050875949

ABSTRACT:
A ceramic material for injection molding is provided which enables splendid molding property, superior degreasing property of the molded body, and high material efficiency. The ceramic material includes a composition of 40-60 vol % of a ceramic powder, and 52-40 vol % of organic binders, the organic binder includes 3-15 wt % of an organic binder of an average molecular weight of 10,000-50,000, and 85-97 wt % of at least one organic binder of an average molecular weight of 200-1,000. A method of producing ceramic molded bodies is provided which prolongs fluidity of the ceramic material in the die, enables complete filling of the ceramic material in the die, completely prevents molding defects and distortion of molded body, affords high productivity of ceramic molded bodies with improved material efficiency, and achieves full degreasing property of the molded body. The method uses the aboved described ceramic material, and the ceramic molding material is injection molded at an injection condition of 55.degree.-95.degree. C. of the ceramics molding material and 40.degree.-52.degree. C. of the die.

REFERENCES:
patent: 4485182 (1984-11-01), Enomoto et al.
patent: 4571414 (1986-02-01), Renlund et al.
Derwent-Kurzreferat 83-823318 (JP 58-174444-A).
Chemical Abstract, vol. 106, 1987, p. 292, Ref. 142881u.
Chemical Abstract, vol. 107, 1987, p. 300, Ref. 241492v.

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