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US 2007/0163746 A1Published application
Perimeter wall lubrication system for molten metal molds
AssigneeWagstaff, Inc.
InventorMichael Anderson
Life of this patent
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Abstract
A perimeter wall lubrication system for molten metal molds wherein the lubricant conduit within the permeable perimeter wall is configured with a K constant which is lower than 40 or more in the equation where X is the perimeter of the groove in the permeable perimeter wall and Y is the perimeter to area ratio, relative to the equation k=XY in a plot of the respective values.
Claims9
A permeable perimeter wall system for a metal mold, comprising:
- a permeable perimeter wall body extending around and defining a mold cavity, said wall body including an inner surface and an outer surface;
- and at least one lubricant delivery conduit at least substantially around the perimeter wall body and in the outer surface of the perimeter wall body, the at least one lubricant delivery conduit having a perimeter and a cross-sectional area;
- wherein an approximate constant K equals the perimeter of the cross-sectional area of the lubricant delivery conduit squared, divided by the cross-sectional area of the lubricant delivery conduit;
- and
- further wherein the approximate constant K of the at least one lubricant deliver conduit in the outer surface of the perimeter wall body is less than forty.
2 more elements
A method of designing a lubricant conduit in a permeable perimeter wall for a molten metal mold, comprising the following:
- determining a perimeter of a lubricant conduit to be located at least substantially around a perimeter wall body, and in the outer surface of the perimeter wall body;
- determining a cross-sectional area of the lubricant conduit;
- determining an approximate constant for a given configuration wherein the approximate constant is equal to the perimeter squared divided by the cross-sectional area of the lubricant conduit;
- and
- making the approximate constant less than forty.
2 more elements
Dependencies are inferred from the claim text.