Metal casting

Details Metal casting Metal casting

B - Operations, Transporting

22

C

22/120

B22C 9/02 (2006.01) B22D 18/06 (2006.01)

Patent

CA 1153865

ABSTRACT A rigid, self supporting, gas permeable low temperature bonded sand grain mold is disclosed. The mold has side surfaces extending between vertical- ly spaced upper and lower surfaces. A plurality of horizontally spaced cavities for molding respective parts are spaced between the upper and lower surfaces. The mold cavities have gate passages with portions having a maximum width of 0.75 inches extending from the cavities, with their lower open ends at the lower surface of the mold.

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