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US 8,939,193 B2Granted
Method and apparatus for filtered and controlled flow metal molding
OwnerPeio Todorov Stoyanov, Ching-Lung Wanginventors
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Abstract
Method and apparatus for flowing molten metal substantially vertically into a mold by means of a feeder tube while concurrently impeding the flow of oxides that collect at the perimeter of the head of the feeder tube. This reduces inclusions in the molten metal and improves the quality of a molded component as the molten metal solidifies.
Claims4
A method for forming a casting comprising:
- flowing molten metal substantially vertically into a mold by means of a feeder tube;
- impeding the flow of oxides that collect at the perimeter of the head of the feeder tube by directing the molten metal through a filter disposed proximate to the end of the feeder tube, wherein said filter has a conical shape and protrudes into a mold cavity of the mold and is held in position by a counter force provided by a divider that protrudes from an opposite side of the mold cavity;
- reducing inclusions in the molten metal by inducing laminar flow of the molten metal as it moves through said filter;
- and
- allowing the molten metal to solidify.
2 more elements
Dependencies are inferred from the claim text.