Claims
- 1. A method of forming a molded article comprising:providing a flaskless mold having a top portion and a bottom portion and defining a mold cavity; forming an opening in the mold in a portion adjacent the mold cavity; placing a chill within the opening; introducing a molten metal into the mold; and removing the chill before destroying the mold.
- 2. The method of claim 1, wherein the opening is formed in the top portion of the mold.
- 3. The method of claim 1, further comprising forming a recess within the opening.
- 4. The method of claim 1, wherein the chill substantially fills the opening to substantially close the mold.
- 5. The method of claim 1, further comprising the chill imparting a pattern to the molded article.
- 6. The method of claim 1, wherein the mold is substantially vertically potted from the top portion to the bottom portion.
- 7. The method of claim 1, wherein the mold comprises a binder and sand.
- 8. The method of claim 1, further comprising directing the cooling of the molten metal within the mold.
- 9. The method of claim 1, further comprising placing a core within the mold.
- 10. The method of claim 1, where the chill is removed from the mold using a robotic arm.
- 11. A method of forming a molded article comprising:forming a flaskless substantially vertically potted sand mold; forming an opening in a top portion of the mold; placing a chill within the opening; introducing a molten metal into the mold; and removing the chill before breakdown of the mold.
- 12. The method of claim 11, further comprising forming a recess within the opening.
- 13. The method of claim 11, wherein the chill substantially fills the opening to substantially close the mold.
- 14. The method of claim 11, further comprising the chill imparting a pattern to the molded article.
- 15. The method of claim 11, wherein the mold comprises a binder and sand.
- 16. The method of claim 11, further comprising directing the cooling of the molten metal within the mold.
- 17. The method of claim 11, further comprising placing a core within the mold.
- 18. The method of claim 17, wherein the core comprises sand and a resin binder.
- 19. A flaskless mold assembly for producing a molded article comprising:a first portion having a top surface and a mold joint surface; a second portion having a top surface and a mold joint surface; a mold cavity defined by at least a part of the mold joint surfaces of the first and second portions, wherein the mold joint surfaces are abutted to one another in a substantially vertical plane; an opening formed in the top surfaces of the abutted first and second portions; and a chill removably positioned within the opening of the abutted first and second halves, wherein the chill can be removed from the mold assembly without substantially destroying the mold.
- 20. The flaskless mold assembly of claim 19, wherein the mold comprises a binder and sand.
- 21. The flaskless mold assembly of claim 19, wherein the chill comprises a metal.
- 22. The flaskless mold assembly of claim 19, wherein the chill comprises an imprinted design to form internal parts of the molded article.
- 23. The flaskless mold assembly of claim 19, further comprising a core within the mold.
- 24. The flaskless mold assembly of claim 23, wherein the core comprises sand and a resin binder.
CROSS-REFERENCE TO RELATED APPLICATION
This application claims the benefit for U.S. Provisional Application Serial No. 60/218,755, filed Jul. 17, 2000.
US Referenced Citations (32)
Foreign Referenced Citations (7)
Number |
Date |
Country |
553653 |
Jun 1932 |
DE |
0 197 741 |
Oct 1986 |
EP |
2230720 |
Oct 1990 |
GB |
58148046 |
Sep 1983 |
JP |
59078764 |
May 1984 |
JP |
61067540 |
Apr 1986 |
JP |
62-74022 |
Apr 1987 |
JP |
Non-Patent Literature Citations (4)
Entry |
Founding Article—pp. 1-3—Mar. 9, 2001—FunkandWagnalls.com. |
Casting Processes—pp. 1-6—Mar. 9, 2001. |
Enhancing Aluminum Casting Solidification via Cooling Fins—pp. 1-7—Mar. 9, 2001—T.C. |
Wright and John Campbell—University of Birmingham. |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/218755 |
Jul 2000 |
US |