Method of and apparatus for molding a drag mold part

Details Method of and apparatus for molding a drag mold part Method of and apparatus for molding a drag mold part

B - Operations, Transporting

22

C

22/39

B22C 15/00 (2006.01) B22C 15/28 (2006.01)

Patent

CA 1127823

ABSTRACT OF THE DISCLOSURE A novel method of molding a drag mold part by passing compressed air through molding sand placed in a space defined by a molding flask and a pattern to compact and consolidate the molding sand in the vicinity of the pattern, and thereafter squeezing the molding sand as a whole by means of a squeeze plate, and a novel apparatus used for this method. This method permits the molding sand to be compacted and consolidated to a high density even in deep recesses defined in the pattern itself and defined between the pattern and molding flask, and joining a formed drag mold part without turning it upside down.

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