Dual entry, low profile, enhanced cooling sow mold

Details Dual entry, low profile, enhanced cooling sow mold Dual entry, low profile, enhanced cooling sow mold

B - Operations, Transporting

22

D

B22D 3/00 (2006.01) B22D 7/06 (2006.01)

Patent

CA 2095856

2095856 9209383 PCTABS00013 A mold (30) for the casting of aluminum sow ingots (40) includes a mold box having a bottom wall (32) and side walls (34, 36) that define a generally rectangular mold cavity (38). The bottom wall includes a central raised longitudinally extending protrusion (42) and side longitudinally extending protrusions (58) adapted to define corresponding depressions (48, 60', 60') in the ingot bottom (52). The side depressions (60') establish ledges for receiving a pair of fork lift blades or tines (25) entering the ledges from either transverse side of the ingot perpendicular to the ledges. A pair of transversely extending protrusions (44, 46) in the mold bottom wall establish corresponding transverse depressions (50) in the mold bottom that are perpendicular to the central longitudinal depression and equispaced from the central transverse axis by a distance enabling the pair of fork lift blades to enter the transverse depressions from a direction perpendicular to either of the longitudinally extending ingot sides to provide a dual entry feature for ease of handling. The depressions in the ingot bottom also define a surface to volume ratio enabling a solidification front in the molten metal to occur that moves from the ingot bottom surface to the top surface to significantly reduce formation of voids in the ingot and depression of the top surface. Also provided is an improved sow ingot having depressions in its bottom surface that facilitate solidification and stacking of the ingot.

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