The volume rate of flow of molten metal into the downsprue from the pouring cup is 50 in3 /sec. At the top where the pouring cup leads into the downsp
The volume rate of flow of molten metal into the downsprue from the pouring cup is 50 in3 /sec. At the top where the pouring cup leads into the downsprue, the cross-sectional area = 1.0 in2 . Determine what the area should be at the bottom of the sprue if its length = 8.0 in. It is desired to maintain a constant flow rate, top and bottom, in order to avoid aspiration of the liquid metal