Casting funnel

Patent metadata

Field	Value
Publication number	US-10518322-B2
Application number	US-201314437017-A
Country	US
Kind code	B2
Filing date	Oct 16, 2013
Priority date	Oct 24, 2012
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

An example molten material funnel includes a first outlet lip and a second outlet lip. The first and second outlet lips are configured to both contact molten material communicated through the molten material funnel.

First claim

We claim:

1. A molten material funnel, comprising:
a first outlet; and
a second outlet, wherein the first and second outlets both face at least partially vertically upward such that an amount of molten material communicated through the molten material funnel impinges on both the first and second outlets, wherein at least one outlet comprises a replaceable sheet.

2. The molten material funnel of claim 1 , wherein molten material moves in a vertical direction D into the molten material funnel, the first outlet and the second outlet both angled relative to the direction D.

3. The molten material funnel of claim 2 , wherein an angle of the first outlet relative to the direction D is greater than an angle of the second outlet relative to the direction D.

4. The molten material funnel of claim 2 , wherein an angle of the first outlet relative to the direction D is greater than 40 degrees, and the angle of the second outlet relative to the direction D is less than 40 degrees.

5. The molten material funnel of claim 2 , wherein an angle of the first outlet relative to the direction D is about 40 degrees, and the angle of the second outlet relative to the direction D is about 25 degrees.

6. The molten material funnel of claim 2 , wherein the first and second outlets both face at least partially in a direction opposite the direction D.

7. The molten material funnel of claim 1 , wherein the molten material communicates from the molten material funnel to an opening in a shot tube, the opening extending radially from a bore of the shot tube.

8. The molten material funnel of claim 7 , wherein molten material moves in a vertical direction D into the molten material funnel, the direction D normal to a tangent of the bore.

9. The molten material funnel of claim 8 , wherein the opening includes first portion and a second portion, the first portion extending from the bore along an first axis that is angled relative to the direction D, the second portion extending from the first portion along a second axis that is angled relative to the first axis.

10. The molten material funnel of claim 9 , wherein the first outlet is configured to directly contact the shot tube in the second portion.

11. The molten material funnel of claim 1 , wherein the first and second outlets are configured to reduce an impingement angle of the molten material on a shot tube to less than 60 degrees from a tangent of a bore of the shot tube, wherein the molten material funnel is configured to receive molten material moved in a vertical direction D into the molten material funnel, and the direction D is normal to the tangent of the bore.

12. The molten material funnel of claim 1 , wherein the first outlet extends from a first wall of the molten material funnel, and the second outlet extends from an opposing, second wall of the molten material funnel, the first wall positioned entirely between an inlet to the molten material funnel and the first outlet, the second wall positioned entirely between the inlet to the molten material funnel and the second outlet.

13. The molten material funnel of claim 12 , wherein molten material moves in a vertical direction D into the molten material funnel, the first wall and the second wall aligned parallel to the direction D.

14. A molten material funnel, comprising:
a first outlet; and
a second outlet, wherein first and second outlets both face at least partially vertically upward such that an amount of molten material communicated through the molten material funnel impinges on both the first and second outlet,
wherein at least one outlet comprises a replaceable sheet,
wherein both the molten material funnel and replaceable sheet comprises a steel, a superalloy, a refractory metal, a ceramic or a hybrid material.

15. A casting assembly, comprising:
a supply of molten material;
a shot tube that communicates molten material to a die; and
a funnel having a first outlet and a second outlet, the funnel configured to communicate molten material from the supply to the shot tube in a first direction such that an amount of the molten material impinges on both the first and second outlets, the first and second outlets facing at least partially in a second direction opposite the first direction, wherein at least one outlet comprises a removable plate.

16. The casting assembly of claim 15 , wherein the die comprises a mold cavity for a turbomachine component.

17. The casting assembly of claim 15 , wherein the funnel is configured to communicate the molten material vertically downward toward the first and second outlets, and the first and second outlets face, at least partially, vertically upward.

18. A method of communicating molten material, comprising:
impinging a flow of molten material on a surface of a funnel prior to communicating the molten material to a die cavity, and using at least three distinct funnel orientations to communicate molten material to at least three distinct areas of a shot tube.

Assignees

• United Technologies Corp

Inventors

• Chow Wai Tuck
• Loh Yan Seng

Classifications

• B22D11/145

  for upward casting · CPC title

• B22D17/20

  Accessories: Details · CPC title

• B22D41/50 Primary

  Pouring-nozzles · CPC title

• B22D17/203

  Injection pistons (B22D17/2053 takes precedence; for plastics B29C45/53) · CPC title

• B22D17/2023

  Nozzles or shot sleeves · CPC title