Material containing vessels for melting material

Patent metadata

Field	Value
Publication number	US-9604279-B2
Application number	US-201214391731-A
Country	US
Kind code	B2
Filing date	Apr 13, 2012
Priority date	Apr 13, 2012
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

Disclosed is a vessel for melting meltable material having a body with a melting portion configured to receive meltable material to be melted therein and an injection path for injecting the meltable material in molten form after melting (e.g., into a mold). The body has a recess configured to contain the meltable material within the vessel during melting of the material. The vessel is configured for movement between in a first position to restrict entry of molten material into an injection path of the vessel and to contain the material in the recess during melting, and a second position to allow movement of the material in a molten form through the injection path and into the mold (e.g., using a plunger). The vessel can be used in an injection molding system for molding bulk amorphous alloys.

First claim

What is claimed is:

1. A vessel for containing a material during melting of the material, comprising:
an inner wall defining:
a melt zone comprising a recess set into a surface of the inner wall and extending around less than a complete circumference of the inner wall, the recess configured to contain the material in the recess during melting of the material; and
an injection path adjacent the melt zone for guiding the material in a molten form out of the vessel.

2. The vessel according to claim 1 , wherein:
the inner wall is substantially tubular and extends along a longitudinal direction; and
the recess has a length along the longitudinal direction less than a length of the inner wall along the longitudinal direction.

3. The vessel according to claim 2 , wherein the recess has a width less than a circumference of the inner wall.

4. The vessel according to claim 1 , wherein:
the vessel is configured for movement between a first position and a second position;
in the first position, the material is contained in the melt zone by the recess during melting of the material; and
in the second position, the material is not contained in the recess, thereby allowing movement of the material in the molten form out of the melt zone and into the injection path.

5. The vessel according to claim 4 , wherein:
the vessel comprises a substantially tubular inner wall extending along an axis;
the melt zone and the injection path are portions of the inner wall; and
the vessel is configured to be rotated about the axis between the first position and the second position.

6. The vessel of claim 1 , wherein the vessel comprises a substantially cylindrical body extending along a cylindrical axis.

7. An injection molding system comprising:
a mold; and
a vessel connected to the mold and comprising a substantially tubular inner wall, the substantially tubular inner wall defining:
a first surface having a recess configured to receive material therein and substantially prevent egress of the material from the recess during melting of the material; and

a second surface radially opposite the first surface and defining a substantially continuous surface for guiding the material out of the vessel and towards the mold after melting of the material.

8. The system according to claim 7 , further comprising a plunger rod configured to move the material from the vessel and into the mold.

9. The system according to claim 8 , wherein the plunger rod and vessel are positioned along a horizontal axis such that the plunger rod is moved in a horizontal direction through the vessel to move the material from the vessel and into the mold.

10. The system according to claim 8 , wherein:
when the vessel is in a first position, the material is contained in the recess; and
when the vessel is rotated to a second position, the material is outside of the recess, thereby allowing movement of the material out of the vessel and into the mold.

11. The system according to claim 10 , wherein:
the substantially tubular inner wall is substantially cylindrical and extends along a cylindrical axis; and
the vessel is positioned such that the cylindrical axis is substantially horizontal.

12. The system according to claim 8 , further comprising a transfer sleeve joining the vessel to the mold.

13. The system according to claim 8 , further comprising at least one vacuum source configured to apply vacuum pressure to at least the vessel and the mold.

14. The system according to claim 7 , further comprising an induction source associated with the vessel to melt the material.

15. A method of melting a material, comprising:
placing a material to be melted within a vessel configured to move between a first position and a second position and comprising a recess configured to contain the material within the vessel during melting of the material;
applying a vacuum to the apparatus;
melting the material in the vessel, thereby forming a molten material; and
moving the vessel from a first position in which the material is contained in a recess in the surface of the vessel to a second position to allow movement of the molten material through an injection path and into a mold.

16. The method according to claim 15 , wherein:
the apparatus further comprises a plunger; and
the method further comprises moving a plunger through the vessel to move the molten material through the injection path after the vessel is positioned in the second position.

17. The method according to claim 15 , wherein the operation of moving the vessel from the first position to the second position comprises rotating the vessel about an axis.

18. The method according to claim 15 , wherein:
the apparatus further comprises an induction source positioned adjacent the vessel; and
the operation of melting the material comprises powering the induction source.

19. The method according to claim 15 , wherein the material is an amorphous alloy.

20. A method of making a bulk amorphous alloy part comprising:
placing an alloy material to be melted within a recess in an inner wall of a vessel;
melting the alloy material in the vessel, thereby forming a molten material;
moving the vessel from a first position to a second position to pour the molten material out of the recess and onto the inner wall;
moving the molten alloy material through an injection path and into a mold; and
molding the molten material into the bulk amorphous alloy part.

21. The method according to claim 20 , further comprising:
releasing the vacuum on the apparatus; and
ejecting the bulk amorphous alloy part from the mold.

Assignees

• O'Keeffe Sean Timothy
• Pham Quoc Tran
• Waniuk Theodore Andrew
• Deming Michael Blaine
• Apple Inc

Inventors

• O'Keeffe Sean Timothy
• Pham Quoc Tran
• Waniuk Theodore Andrew
• Deming Michael Blaine

Classifications

• B29C45/0001

  characterised by the choice of material · CPC title

• B22D25/06

  by its physical properties (B22D27/00 takes precedence) · CPC title

• B22D17/203

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

• C22C45/10

  with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium {or Hf} as the major constituent · CPC title

• C22C45/001

  with Cu as the major constituent · CPC title