Molten metal holder furnace and casting system incorporating the molten metal holder furnace

Patent · Tue Feb 11 04:00:00 EST 2003

OSTI ID:875030

Kinosz, Michael J ^[1]; Meyer, Thomas N ^[2]

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1. Apollo, PA
2. Murrysville, PA

A bottom heated holder furnace (12) for containing a supply of molten metal includes a storage vessel (30) having sidewalls (32) and a bottom wall (34) defining a molten metal receiving chamber (36). A furnace insulating layer (42) lines the molten metal receiving chamber (36). A thermally conductive heat exchanger block (54) is located at the bottom of the molten metal receiving chamber (36) for heating the supply of molten metal. The heat exchanger block (54) includes a bottom face (65), side faces (66), and a top face (67). The heat exchanger block (54) includes a plurality of electrical heaters (70) extending therein and projecting outward from at least one of the faces of the heat exchanger block (54), and further extending through the furnace insulating layer (42) and one of the sidewalls (32) of the storage vessel (30) for connection to a source of electrical power. A sealing layer (50) covers the bottom face (65) and side faces (66) of the heat exchanger block (54) such that the heat exchanger block (54) is substantially separated from contact with the furnace insulating layer (42).

• Assignee: Alcoa Inc. (Pittsburgh, PA)
• Patent Number(s): US 6516868
• Application Number: 09/769944
• OSTI ID: 875030
• Country of Publication: United States
• Language: English

Related Subjects

/164/266/
12
30
32
34
36
42
50
54
65
66
67
70
block
bottom
bottom wall
casting
chamber
conductive
connection
contact
containing
covers
defining
electrical
electrical power
exchanger
extending
furnace
heat
heat exchanger
heated
heaters
heating
holder
incorporating
insulating
layer
lines
located
metal
molten
molten metal
outward
plurality
power
projecting
receiving
sealing
separated
sidewalls
source
storage
storage vessel
substantially
supply
thermally
thermally conductive
top
vessel
wall