Ceramics particle

Details Ceramics particle Ceramics particle

2005-11-01

2010-06-08

Kerns, Kevin P (Department: 1793)

Metal founding

Process

Shaping a forming surface

C164S529000, C164S349000

Reexamination Certificate

active

07730933

ABSTRACT:
A ceramics particle produced by a flame fusion method, containing MgO and SiO2as main components, and having a MgO/SiO2weight ratio of from 1.0:1 to 1.45:1, and an average particle size of from 0.001 to 1.5 mm; a spherical molding sand containing MgO and SiO2as main components, and having a MgO/SiO2weight ratio of from 1.0:1 to 1.45:1, and an average particle size of from 0.001 to 1.5 mm, produced by a flame fusion method; a spherical molding sand, comprising MgO and SiO2as main components, and having a MgO/SiO2weight ratio of from 1.0:1 to 1.45:1, an average particle size of from 0.001 to 1.5 mm, and a spherical degree of 0.95 or more; a process for producing the above spherical molding sand; a casting mold containing the spherical molding sand as defined above; and a casting produced by casting with the mold as defined above.

REFERENCES:
patent: 4923520 (1990-05-01), Anzai et al.
patent: 1422196 (2004-05-01), None
patent: 11-188454 (1999-07-01), None
patent: 2001-71094 (2001-03-01), None
patent: 2001071094 (2001-03-01), None
patent: 2004-202577 (2004-07-01), None
patent: 2004-202577 (2004-07-01), None
patent: WO-2004/052572 (2004-06-01), None
Japanese Office Action issued in corresponding Japanese Patent Application No. 2005-314424 on Feb. 16, 2010.

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